EDIT:Vacuum lines and things is solved see post #10

EDIT:Vacuum lines and things is solved see post #10

top one seems to be a senor cable, any lying around near by?

also the ones that are coming out of the firewall; only cables/ anything that comes out of the firewall that i've run into is heater core lines.

the one coming out of the plenum is a booster line, in my experience.

i could get some pictures of my 350 but might take a day or so. if you are patient ill get'em up. good luck till then.

Id sell the car....that car is WAYYYYYYYYYYYYYYYYY HACKED......

Moved this to the TPI section, you will probably have better luck there.

wow you sure have some issues there but nothing that cant be fixed.
I could sit here a write a novel on what all is wrong but then how will ya learn!?!?!
Your best bet is to buy a GM service manual from helm.
here is a lil help

Just bought 87 iroc with much of the same rats nest in same area and nothing electrical seems to work in the car (power door locks, power trunk, stereo, interior lights (all), high speed on blower motor...and the list goes on. Good luck to you I know you will need it. The only reason I bought my car was for the rust free body and low miles...the rest I will have to figure out (project car).

you should have a pcv valve in that hole on the valve cover hooked to a hose coming out of the plenum or tb i believe. here is a pic of my bay.

A buddy with an 88 GTA came by and helped me out with alot of it.

My problem now is it misses at low rpm's and has now gotten to the point it wont start.

I got everything vacuum related hooked up except for cruise control which I'm missing atm. I have the line from the reservior hooked up where it should go but isnt teed up with the cruise line since I'm missing it.

It's very frustrating, It ran good until I went and hooked up all the vacuum lines and evap system. Ses light would come on and go right off if that helps.

I'm flat broke and cant afford to buy anything, I really need this thing to cooperate with me.

The white and babyblue connector I believe is one of the two that are for your smog pump

sent you a pm

Replied.

Hope some of this helps:

I appreciate the help guys. I got all the vacuum stuff figured out for the most part.

Problem now is no start and had been missing until now. See post #10.

Do you have spark? Fuel?

It did at one time. Last time we checked it did and then another time we checked there was no spark. 1 day it would start and run and run good at that and then not run well and/or not run/start at all.

The icm, plugs, wires and everything but the dist itself was replaced and still does it. I'm wondering if the aftermarket icm coulda went bad as well?

Checked spark aaand no fire. How common are icm's about going bad even if theyre new?

Before I put this engine in I replaced nearly everything ignition other than the dist itself and it ran good at one point.

Checked the icm its good.

Replaced the coil pickup and it starts. Problem now is its acting like its running out of gas.. Injectors now?

Change fuel filter and put a presure gauge on the rail and see what you have.

I've replaced the filter already. After driving it, it ran really good other than the iradic idling.

It tries to die if you dont keep your foot on the gas. It's acting like its either a vacuum issue or a timing issue. This is so frustrating!

After I drove it a bit ago it died then I went to restart it the starter dragged and barely started and began to miss again.

I cant believe how fickle these cars are! >:[
What now?

Reset the timing, ran perfect for a little while and then it began to miss again.

It idles now w/out trying to die but we cant for the love of god find out why it keeps missing after we drive it abit.

Any ideas?

Leave them alone, most of them are 20+ years old! That being said, they do seem to have a host of ridiculous problems out of nowhere.

Drove mine 6 days a week, 10 city miles through traffic twice a day to work for 3 months + errands and to friend's houses etc without any issues. The ONE time I take it out of town and BAM. ICM goes out.

Also, my speedo, odometer and horn all stopped working at the same exact time. Damn digital dashboard....

Leave what alone? TPI engines? I wouldve rather had an ls1 but I wanted something cheap and plug'n play.

I dont have the funds nor the skills for an lsx swap unless I go in debt for it.

I didnt think it be this much hell.. At one point the engine ran fine w/out issues.. I hook up all the vacuum lines and things and now it misses and I cant figure out why.

It was sarcasm. An LS1 would be very nice, I agree with you there.

But theres also something about the car being stock that I like as well.

I dont mind it being stock.. They're proven engines that can hang with nearly anything when they're running right.

The story with my car is it's a roller. Bought the car for 400$ Needs a paintjob but the interior is mint.

Found a 350 TPI out of a low mileage '89 gta 98k miles, 500$ for everything.

As I got everything in the car I've had to get random small parts and connectors that were cut off cause the wiring harness was butchered. Car was a nitrous car and had alot of random wires hacked into the harness.

All I like is getting the damn misfire figured out and I got a really decent daily for less than 2k$.

I'm running out of ideas. :/

Aside from the problems youve been having, it sounds like you got a pretty sweet deal there. Paid 1800 for mine and its a step and a half up from a beater in the looks department.

Gas stains all over the driver side rear fender, all of the ground effects are missing screws, the spoiler is all chipped to hell, the hatch doesn't open, ( It doesnt even HAVE a locking mechanism ) the driver side door isnt even from a GTA ( You could never tell from the outside ) The front Bumper has no screws in one side, My windows shake when theyre halfway down and going over 40mph, my AC/Heater vents don't work, Im done.

Its a lot of little things, but it runs good and has more *** on it than anything thats tried to race me ( I've yet to have a Mustang even try it though. Little sad on that one. ) and even as broke as it looks, I still get complements. One guy ( A mustang driver. Go figure ) even told me that he loves my rims ( Original GTA rims ) He then asked me if I had a V8. To which my engine revs replied " Yes "

So now after the work we've done to it its to the point it runs really good until it warms up. Now on to my next questions, when do the fans supposed to come on on these cars? '89 in purticilur.

I had to wire up new connectors for the coolant fan sensor and the knock sensor and am thinking possibly they got hooked up to the wrong sensor.
The wires are super hacked and butchered and couldve been mismatched and am thinking once it warms up the wire which is supposed to be the the fan relay, is possibly making the knock sensor do strange things to make the car suddenly miss and run like poo?

The driver side fan comes on pretty early and the car runs good until it warms up.. I'll see about looking at it today. What do you guys think?

Couldn't tell you about that one. Both the thirdgens I've had, the fans came on as soon as the key was turned.

So I double checked and there wired up right.

So at the moment it runs good. I'm about to see how it does after its been drove awhile.

Before today it would run good then start to miss once warmed up or drove awhile. Would could cause that? It runs too good to be anything serious. :/

Took the o2 sensor out and it was snow white. I'm told that means its running very lean.

So I checked the injectors with a stethescope and some of the injectors dont tick very loud at all compared to the rest of them. Unplugged one of the quiet ones and it ran about the same. Whats going on is its a sputter more so than a miss.

So it looks like im in for a chore replacing the injectors.. Sound about whats ailing it to you guys?

Isnt this thread about photos of TPIs??

Its my thread?

I need help figuring out my issues with car.

Guess so... oh well.. forget I was here.

No disrespect. I appreciate the pics but now the vacuum isnt my issue anymore.

I'm just trying to figure out whats wrong with my car. It's frustrating..

Car ran perfect when I got it running and now that it's legal to drive its running like ****.

Ok I have since replaced the o2 sensor and had a guy scan the car with a date logger. Everything seems to be ok other than the o2 dropping to 0 for a moment then reading right as it should and I'm throwing a 42 code.

No knock was detected either so what could be throwing code 42? It's running fine atm and I've replaced everything ignition related except the dist itself(replaced the pickup coil)

What do you guys think?

Something is making my car go lean at times and causes my o2 to turn white and make the car run horrible in closed loop.

Until my o2 turned white it ran good all the time even in closed loop. What could be causing this?