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91 Camaro 3.1 v6 NEED HELP

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Old Mar 11, 2012 | 12:33 PM
  #51  
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Re: 91 Camaro 3.1 v6 NEED HELP

Originally Posted by GreenCamaro13
yea, 46.

hmm, did you just bypass vats or disable it completely?
Yup definitly VATS code, I dont know what all you did to that stearing wheels so I dont know where to begin.

But id start by reading though some threads on it and mabey youll get some ideas...
https://www.thirdgen.org/forums/v6/5...code-46-a.html
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Old Mar 11, 2012 | 12:58 PM
  #52  
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Re: 91 Camaro 3.1 v6 NEED HELP

well after closer examination i noted when starting it with a plyers i cut the one of the vats wires...lol so i routed the tumbler to under the dash and rehooked the vats wires. now i have to put th key under the dash and start it with the plyers. lol but after rehooking the vats its now just showing 12 repeting...no codes?
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Old Mar 11, 2012 | 01:00 PM
  #53  
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Re: 91 Camaro 3.1 v6 NEED HELP

yep 12 is that your ecm isnt throwing codes so atleast you find the problem,, lol dang pliers these days.
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Old Mar 11, 2012 | 02:05 PM
  #54  
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Re: 91 Camaro 3.1 v6 NEED HELP

what do u mean i found the problem? well i started it up after i got everything back together and it ran realy good for a min. then i pulled it up in the garage and it started sputtering worse than ever and died...it will start but is running like crap. uugghhh
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Old Mar 11, 2012 | 02:07 PM
  #55  
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Re: 91 Camaro 3.1 v6 NEED HELP

fuel presure guage was 35 bucks so i couldnt afford one, the naighbor didnt have one but i pushed the button and gas sprayed me in the face, so imma assume there good presure...lol
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Old Mar 11, 2012 | 02:09 PM
  #56  
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Re: 91 Camaro 3.1 v6 NEED HELP

Originally Posted by 91camaroRS3.1
fuel presure guage was 35 bucks so i couldnt afford one, the naighbor didnt have one but i pushed the button and gas sprayed me in the face, so imma assume there good presure...lol

I wont even go thought why that isnt a good way to check it...and can you tell the difference between 43.5 psi and 30psi when its gas shooting you in the face??. Be carful with that fuel line, and call arround some parts stores will rent you a fuel pressure tester for next to nothing.

Last edited by fasteddi; Mar 11, 2012 at 02:13 PM.
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Old Mar 11, 2012 | 02:10 PM
  #57  
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Re: 91 Camaro 3.1 v6 NEED HELP

lol i have one other naighbor ill go ask real quick
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Old Mar 11, 2012 | 02:15 PM
  #58  
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Re: 91 Camaro 3.1 v6 NEED HELP

ok no go on the fuel presure for a day or two till i get some cash. lets play what if and assume im gettin gas at the right presure...what would be your next guess?
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Old Mar 11, 2012 | 02:25 PM
  #59  
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Car: 1991 Camaro RS
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Transmission: Fsi th400 stage 4. TSI 5500 st
Axle/Gears: Strange S60 4:10s
Re: 91 Camaro 3.1 v6 NEED HELP

Originally Posted by 91camaroRS3.1
ok no go on the fuel presure for a day or two till i get some cash. lets play what if and assume im gettin gas at the right presure...what would be your next guess?
go video tape it starting up, idling till its warmed up then putting it in drive and putting a little load on the car, reve it up. Without knowing if the fuel is right its hard to look at other fueling problems.
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Old Mar 11, 2012 | 02:45 PM
  #60  
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Re: 91 Camaro 3.1 v6 NEED HELP

http://youtu.be/MsO972SCCBM

here it is
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Old Mar 11, 2012 | 02:57 PM
  #61  
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Re: 91 Camaro 3.1 v6 NEED HELP

dang cars with there fuel injectors and vats and all this crap.
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Old Mar 11, 2012 | 03:37 PM
  #62  
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Car: 1991 Camaro RS
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Transmission: Fsi th400 stage 4. TSI 5500 st
Axle/Gears: Strange S60 4:10s
Re: 91 Camaro 3.1 v6 NEED HELP

Well i think you need to really check that fuel pressure, do you know how to take the intake off so you can test the injectors?? Its really not too hard if you can rememeber how to put it back together.

Have you pulled the spark plugs after it dies and looked at them?? Are they black? Wet? White? Tan? Dry?

Also im not sure if i missed the history part of this car, but was it stitting a while or somethin??? Any clue when it ran right before? Sorry if you already said the history on the car...
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Old Mar 11, 2012 | 03:51 PM
  #63  
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Re: 91 Camaro 3.1 v6 NEED HELP

ok so was that you pushing the gas like around 0:45? or does it do that itself when you turned it on??

well "hypotheticaly Speaking" i would check your fuel filter and see if its pretty plogged up, if thats plogged up theres a good chance fuel pump isnt so pretty either and same goes for fuel injectors,

but like fast said, check the psi so you can know if the right pressure is getting to the fuel
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Old Mar 11, 2012 | 04:23 PM
  #64  
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Re: 91 Camaro 3.1 v6 NEED HELP

well history is that the kid bought it and got into a front end the first day he had it, its been sitting but he ran it once and a while. he said he replaced the: computer, fuel rail screen, air temp sensor, dist., batt, plugs. i pulled the plugs today and there a little burnt black, no horribly though. and yea it dosnt rev it self, it was messin mashin the gas a little. the kid had been having trouble gettin it started as i am now, i have not the slightest clue to to tear down that intake box thing on top..if thers a pictured thread i would greatly apprciate it. any other info you need lemme know brothers
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Old Mar 11, 2012 | 04:24 PM
  #65  
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Re: 91 Camaro 3.1 v6 NEED HELP

could i use a bike tire presure guage to test the guel presure? it goes up to 60 psi..or do i need a special tip or something?
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Old Mar 11, 2012 | 04:26 PM
  #66  
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Re: 91 Camaro 3.1 v6 NEED HELP

intake box? im not sure what you mean, but im thinking you mean the intake manifold? to get to the housing?
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Old Mar 11, 2012 | 04:27 PM
  #67  
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Re: 91 Camaro 3.1 v6 NEED HELP

Originally Posted by GreenCamaro13
intake box? im not sure what you mean, but im thinking you mean the intake manifold? to get to the housing?

yea i meant the intake metel thing on top to check out the injectors...no idea how to tear that beast off...
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Old Mar 11, 2012 | 04:30 PM
  #68  
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Re: 91 Camaro 3.1 v6 NEED HELP

oh, thats eaaasy man, takes me about 10 minutes to do.
ok ima try to help on this. let me go take a video and ill tell you how k
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Old Mar 11, 2012 | 04:31 PM
  #69  
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Re: 91 Camaro 3.1 v6 NEED HELP

cool ill be waiting
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Old Mar 11, 2012 | 04:34 PM
  #70  
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Re: 91 Camaro 3.1 v6 NEED HELP

k its uploading atm
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Old Mar 11, 2012 | 04:39 PM
  #71  
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Re: 91 Camaro 3.1 v6 NEED HELP

http://www.youtube.com/watch?v=aZIOFh4nKdo

also, dont forget to take off the wires on the left side of the intake that connect to the intake manifold to you wont rip them off or something, fast explanation, if you need more help just post on here and ill jump on it
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Old Mar 11, 2012 | 04:47 PM
  #72  
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Re: 91 Camaro 3.1 v6 NEED HELP

ok imma give it a wing..hopefuly done before its dark out
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Old Mar 11, 2012 | 04:48 PM
  #73  
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Re: 91 Camaro 3.1 v6 NEED HELP

if not just make sure you put a bag over the intake manifold and plentum so nothing gets into it just to be 100% sure. Hope goes good.
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Old Mar 11, 2012 | 05:31 PM
  #74  
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Re: 91 Camaro 3.1 v6 NEED HELP

well i got asfar as getting the top off and getting to the fuel rail. ofcourse all the bolts underneath are stuck and its being a pain in the butt...i went to eat then i droped my plate on the floor. not cool....imma just bag it up and hit it tommorow...fml..
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Old Mar 11, 2012 | 05:34 PM
  #75  
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Re: 91 Camaro 3.1 v6 NEED HELP

haha i hate when my food falls.. bolts underneath? ur talking about just the 2 that are holding the fuel rail down right?? now anything else lol i dont want you to take anything unesecary off
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Old Mar 11, 2012 | 05:46 PM
  #76  
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Re: 91 Camaro 3.1 v6 NEED HELP

well the one bolt thats holding down the wires to the injectors. im a little nervouse to pull um incase i cant get that back in the right order. ill label them when im taking them off. and the rust ones im talkin about hold the EGR tube on. i cant break um. but im just yankin the intake to the side. have any pictures or any advice for tearin down after i get the top of the intake off? im look at the fuel rail and the wires and such. i dont wanna pull off anything i dont need to either...lol
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Old Mar 11, 2012 | 06:30 PM
  #77  
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Re: 91 Camaro 3.1 v6 NEED HELP

let me show u some of mine off,
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Old Mar 11, 2012 | 06:31 PM
  #78  
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Re: 91 Camaro 3.1 v6 NEED HELP

Originally Posted by 91camaroRS3.1
well the one bolt thats holding down the wires to the injectors. im a little nervouse to pull um incase i cant get that back in the right order. ill label them when im taking them off. and the rust ones im talkin about hold the EGR tube on. i cant break um. but im just yankin the intake to the side. have any pictures or any advice for tearin down after i get the top of the intake off? im look at the fuel rail and the wires and such. i dont wanna pull off anything i dont need to either...lol
Jezz your tearing into it i see

... well heres a few pics to help since youve already tore is somewhat apart. If your taking out that fuel rail, becarful when you lift up on it as there is rubber o-rings on the ends of the injectors that are in the intake.

You go and tear it all down and your going to just have to check the OHM(resistance) of the injectors and if that is good then you might as well see if there clogged. Thats a pain so if you get that far let me know.

Not that your doing all of this but.. heres a pic




You should have taken some pictures like this.. so you can easily remember were stuff goes. Lable the wires and the vac lines. It sounds dumb but believe me some things just make it easier at least for me.


Sorry I dont have as many picutes...if you port your heads, put a cam in it, or turbo it... I have alot of them

If the EGR is giving you a problem take it off at the ex. manifold unless that bolt looks bad. Dont try it if you think its gonna break. I personally take the egr and intake off as one piece, I never remove the EGR from the intake as its a PITA to get a 10mm socket into the front one sometimes. It just takes too long and I have a routine of doing my tear down since ive done it too many times...

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Old Mar 11, 2012 | 06:34 PM
  #79  
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Re: 91 Camaro 3.1 v6 NEED HELP



Hers is mine, before i cleaned it and what not.
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Old Mar 11, 2012 | 06:45 PM
  #80  
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Re: 91 Camaro 3.1 v6 NEED HELP

I really wish you would have just waited though and checked the fuel pressure @ the rail, now your gonna need new manifold gaskets and hopefully the problem is in the injectors. Or you just riped it all apart for fun!! LOL But its a good learning experience man, these motors arnt to to bad to work on.

If you get to that pic above. There is 2 bolts(ont the left) that hold the fuel rail in place, also a nut that holds the wire harness on, and a bolt that hold the fuel line on(this is on plate that comes off the driverside hed/ex manifold)

So then to actually remove the fuel rail, unclip the big wire harness, and then also gently(it is old!) pull off the tempeture sensor clip(is on the intake manifold but run in with the wires from the fuel injector harness) Also take the Vac line off the fuel rail and dont forget to put it back on when your done.

And once again BE Carful pulling that fuel rail out, you can tear up the o-rings on them or even crack the tips(i forgot what the tips are really called)
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Old Mar 11, 2012 | 06:53 PM
  #81  
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Re: 91 Camaro 3.1 v6 NEED HELP

carful is not one of ym strong suites...lol ill do my best. and ill need to do sooomthing to get the EGR tube tubes off because i can move the stinkin thing outa the way untill i do so. and thanks for the pocs guys, im a very cusual leaner...lol i appreaciate the help, ill post some pics when i get back on her tommorow

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Old Mar 11, 2012 | 06:54 PM
  #82  
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Re: 91 Camaro 3.1 v6 NEED HELP

Originally Posted by fasteddi
I really wish you would have just waited though and checked the fuel pressure @ the rail, now your gonna need new manifold gaskets )
this is true, but i dont think he needs to replace the gasket unless necasary or am i wrong?? i did mine without replacing any mine still still works,

the injectors might be a little ruff to take out, because mine were, but be very carfull as emphasized by edd because if the o-ring falls in there.. more work. how i removed mine was i got a double sided wrench and put it between the bottom manifold and the fuel rail and pushed up a little then moved the wrench to the opposite side and pulled up and to the other side and it popped off without trouble.,
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Old Mar 11, 2012 | 06:55 PM
  #83  
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Re: 91 Camaro 3.1 v6 NEED HELP

and tommorow imma take my stinkin hood off bacause the shocks dont work and the rikety peice of wood i had holding it up was real sketchy...ill fill yall in
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Old Mar 12, 2012 | 09:46 AM
  #84  
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Re: 91 Camaro 3.1 v6 NEED HELP

ok boys this is where im at. iv got all the wires and bots labeled so im doing good there...the fuel rail is all unbloted but im hesitant to go yankin on it....whats my next step?


http://youtu.be/2RkTWLTUlWo
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Old Mar 12, 2012 | 10:01 AM
  #85  
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Re: 91 Camaro 3.1 v6 NEED HELP

ok got the fuel rail up, now how the heck do i get these injectors off?
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Old Mar 12, 2012 | 03:07 PM
  #86  
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Re: 91 Camaro 3.1 v6 NEED HELP

Originally Posted by 91camaroRS3.1
ok got the fuel rail up, now how the heck do i get these injectors off?
Ok I just copied this off a older post...so i didnt write this but it is explained pretty well. So read up!


#1: Remove negative battery cable.

#2: Take everything loose from upper intake plenum.
Air inlet duct from throttle body, AV cables from throttle body, leave throttle body bolted to upper inteke plenum! Gasket has to be ordered otherwise.

#2: Take the upper intake Plenum off. That will give you access to the fuel rail.

#3: Releave fuel pressure at shradder valve. Has a black cover screwed on it at back of fuel rail. Looks like a tire valve. Don't get gas in your eyes. LOL

#4: Remove the two fuel lines with a line wrench, not a standard open end wrench. Line nut heads will strip. Remove vacuum line at pressure regulator.

#5: Remove two bolts that hold down fuel rail, remove one bolt that holds throttle cable on.

#6: Remove wire harness from fuel injectors. Look at the shiny metal clip on top of each connector. Squeeze it a certain way to release harness.

#7: Take OHM meter and check fuel injectors between pins. Should be around 11.9ohms. If not then they are bad or going bad. If you change one you should change all. Acceptable = 9 - 13 ohm.

#8: Pull up on fuel rail wiggling it back and forth untill fuel injectors start coming out of middle intake plenum. If they been in for a while you might have a hard time getting the fuel rail off. Be carefull not to break small clip holding each fuel injector into fuel rail. They have to be ordered too. Doesn't come with fuel injector.

#9: Once fuel rail is out dump fuel out of it, turn it over and turn the clip(s) that holds fuel injector's half way to remove fuel injector.

#10: Place lubricate on new fuel injector o-ring's (both ends) and reassemble fuel rail. Tilt rail assembly to install injector rail into intake plenum.

#11: Replace o-rings on fuel lines. Make sure you use Fuel Quality O-rings. Should be orange, not black. Don't forget to lubricate them small amount.

#12: Tighten plenum bolts 18ft lb, Fuel line nuts 20ft lb, Fuel rail bolts 18ft lb.

#13: Reasmeble everything else and your done. Don't forget to check for leaks.

If you broke the clips that holds fuel injector into fuel rail they can be ordered in packs of five from rockauto.com
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Old Mar 12, 2012 | 04:26 PM
  #87  
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Re: 91 Camaro 3.1 v6 NEED HELP

hey brother plz checkout my thread "can get these stupid ijectors out"
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Old Mar 12, 2012 | 06:17 PM
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Re: 91 Camaro 3.1 v6 NEED HELP

Hey man just read this whole thread and one post you mentioned that the plugs, wires, dizzy got changed out. My car had a VERY similar problem to yours. I bought injectors thinking they were bad, that did nothing, wasted a few hundred dollars. Next thing I checked was the firing order. What do you know, it was way off! Ran like a charm after I fixed the firing order. That is my recommendation. Pull the distributor and pull spark plug cylinder 1. From there crank engine until cylinder 1 is at TDC, then put back together starting with plug wire 1 and following order. I feel confident that will help you.

Let me know if you have any other problems. I have the 3.1 motor and I ressurected this from the dead.
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Old Mar 12, 2012 | 06:27 PM
  #89  
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Re: 91 Camaro 3.1 v6 NEED HELP

Originally Posted by Firebird_305
Hey man just read this whole thread and one post you mentioned that the plugs, wires, dizzy got changed out. My car had a VERY similar problem to yours. I bought injectors thinking they were bad, that did nothing, wasted a few hundred dollars. Next thing I checked was the firing order. What do you know, it was way off! Ran like a charm after I fixed the firing order. That is my recommendation. Pull the distributor and pull spark plug cylinder 1. From there crank engine until cylinder 1 is at TDC, then put back together starting with plug wire 1 and following order. I feel confident that will help you.

Let me know if you have any other problems. I have the 3.1 motor and I ressurected this from the dead.
I would say that this is also good, but the problem with this is that his does start but doesnt keep going long. when i was working on my engine i also had the wrong firing order and all it did was crank but just got backfires. i dont think his problem is the firing order. but good point on your post
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Old Mar 12, 2012 | 06:46 PM
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Re: 91 Camaro 3.1 v6 NEED HELP

well to e honest i have -0- confidence in the kid i bought it from and for all i know he put the plugs wires to the wrong plugs...i will check that tommorow thanks brother.
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Old Mar 12, 2012 | 07:10 PM
  #91  
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Re: 91 Camaro 3.1 v6 NEED HELP

Originally Posted by 91camaroRS3.1
well to e honest i have -0- confidence in the kid i bought it from and for all i know he put the plugs wires to the wrong plugs...i will check that tommorow thanks brother.
Very easy fireing order.

1,2,3,4,5,6. The #1 wire goes to the 7-8ish oclock position on the dizzy when your standing in front of it, then the wires go clock wise after that. So 1,2,3,4,5,6 clock wise. #3 will be at the 12 oclock position and #6 will be at the 6 oclock position to further help you see how the order is layed out on the dizzy.

Cylinders are numbered like this

Dizzy
5 6
3 4
1 2
Radiator
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Old Mar 12, 2012 | 07:28 PM
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Re: 91 Camaro 3.1 v6 NEED HELP

Oh no I agree with you completely, if the firing order is that wrong it won't start. Mine would start similar to his and run, but I couldn't get it to go above 1,000 RPM's regardless of full throttle or not. It's worth a shot. Then from there another reason could be the timing. I fixed mine through the dizzy. Just trying to think of everything that I did. Hope it works out for you!
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Old Mar 12, 2012 | 07:35 PM
  #93  
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Re: 91 Camaro 3.1 v6 NEED HELP

the car came with a chilton so the firin order is in there..just never crossed my mind to check it. lol but when yall say dizzy do you mean the dist.?
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Old Mar 12, 2012 | 07:49 PM
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Re: 91 Camaro 3.1 v6 NEED HELP

Originally Posted by 91camaroRS3.1
the car came with a chilton so the firin order is in there..just never crossed my mind to check it. lol but when yall say dizzy do you mean the dist.?
Yea dizzy is shorter then the real word

And on the other post, my car will start on 4 cylinders all day(would run like crap, but WOULD start.... I know because the wires were trashed at one point so if you just messed up a wire or 2 you might still get it to run
Just make sure its right before you start it up just in case.
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Old Mar 12, 2012 | 08:37 PM
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Re: 91 Camaro 3.1 v6 NEED HELP

Yeah please keep us updated on how it goes. I'm really curious cause I know you can get it going! This site is great for info and help and everyone is really knowledgeable! I'll look for an update in the am!
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Old Mar 13, 2012 | 12:54 PM
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Re: 91 Camaro 3.1 v6 NEED HELP

FINALY got the inejectors out. gonna get that ohm meter and test um, finaly found a site on hoe to clean them when ther OUT of the car lol. i will also be gettin a fuel presure tester. tax returns came in finaly..AMEN lol
lets make suin happen

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Old Mar 13, 2012 | 05:25 PM
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Re: 91 Camaro 3.1 v6 NEED HELP

Keep us updated man! Worked on my car all day and got no where :P
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Old Mar 13, 2012 | 05:27 PM
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Re: 91 Camaro 3.1 v6 NEED HELP

i just dropped a supercharger today.. naaa jp i wish lol, glad to hear u got the injctrs out man, dont forget to clean up around the housing so you can diagnose the car better, i cleaned mine up completely just in case
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Old Mar 13, 2012 | 07:55 PM
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Re: 91 Camaro 3.1 v6 NEED HELP

what do you mean about cleaing around the housing? pics? and what did you use..dadadadad lol
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Old Mar 13, 2012 | 07:58 PM
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Re: 91 Camaro 3.1 v6 NEED HELP

like clean around the place where the fuel rail goes and what not just becarefull that no dirt or nothing gets into the cylinders (cover the holes where the injectors go) i put seperate paper towels into the fuel injector slots and vacumed around first then i bought some engine degreaser and let it sit out for a bit then used a brush and brushed the Shizzznet out of it, then with a sponge and bucket cleaned it up best i can, i would post a pic but i havent taken any and its raining outside so i dont want to rist getting my engine wet aroud the electrical stuff haha
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