did i say map i meant MAF

 

not sure if the IAC is directly involved with the problem.... but if a sensor or two is sending false readings to the ECM than that may cause inaccuracies in the rest of the system.

 

You have a MAP Sensor Maf was on pre 89 cars with 2.8's i also have a 91 with a 3.1 The IAT might be bad it could be half of your problem I dought the map is bad tho

 

yeah i was kinda figuring there was no MAF or somethin... thanks for the reassurance...

 

well the ticking is gone for sure now... pulled out the feeler gauge made some quick adjustments to the rockers... drove it around carefully... then drove it like a camaro should be driven and still no ticking... started her up a couple times... NO MORE TICK!

on to solving my original dilemma... I need some 4000+ revving!

 

check the distributor cap and oxy sensor again. My firebird did the same thing. My new cap wore out quickly so when my engine started ticking and not reving past 4000 i never even suspected it. I figuire the sparks were being distributed through more than one spark plug wire at ounce, causing stress on the valve train, resulting in, rocker arm, valve spring replacement and whatever else i find out next. My care used to take a long time to reach opreating temp.

My oxy sensor obviosly need needed replacement, it was very rusty and upon removal i seen it must have been totaly useless. I could never get the car to idle right all the time, the one day it threw a code for lean/bad oxy/ bad ecm and stalled. I would put some transmission conditioner in if the tranny is old. You might laugh but i put some in and it made a definite difference at WOT.

Does your car stall?, mine used to about twice a week now it doesn't.

Check your cap, clean it up and if the car acts better, but not cured, replace that. Mine was an expensive one and it wore out before 2000 kms. I now use an Acell cap, cause they were on sale cheaper than the generic band, i now have radio interfence. I complained about that ten years ago to them, and they apparently still don't care. I try to stick with borg-warner, Plug and caps but they're rare around here. anyhow after i replaced the cap and oxy senser (i did both at ounce but i'm sure the cap was the problem), my 2.8l spun the tire again.


Then i did plugs/oils/air filter/ intermediate pipe and my car pures like new now. it used to sound like two dogs making love to a cat.

I too suspected my maf(map in yout case), mat, tps and iac and even the whole T/B. luckily i unly wasted $50 all those from a junkyard. I found they all did make a difference, but never cured the problem. The throtlebody made the most difference, the linkage was soo much tighter. the engine use to slowly rev down, now you can floor it, let off and it drops straight down too 800 rpm.

I just never suspected the distributor cap because it was "new"

 

I'm sticking to my theory about something in your ignition system limiting you. Just doesn't sound like anything else to me considering the symptoms...

 

I still say knock sensor or maybe his TV Cable is out of adjustment effecting his tranny?

 

TV cable isn't going to cause the car to hang up in rpms...it will affect the shift points. If the TV cable is WAY bad, he'll either shift through gears like a 6 speed...WAY quick....or it'll hang forever or not shift at all.

Knock sensor, never dealt with one, I don't know! I figure the knock sensor tells the computer, obviously, if there's a knock...I assume if it detects one, it retards the timing to try to compensate
? So under that premise..check the timing with the EST left connected so the computer can control it...maybe it'll be out of whack. I think it's supposed to be around 22-24 at idle....at least that's the area mine was in.

 

This might sound retarded but i once had this problem... i couldnt get it past 3800-4000 for the life of the car. it all happened coming home from norwalk, about to race a mustang, droped it into second and bam...couldnt get it above 3800rpm. all the way home it acted like this (40 somthing miles) i get home and pulling my hair out. Look at my engine and see my Spark Plug wires sitting on the exhaust manifold/valve covers. let the engine cool down and moved them into the lil bracket and it was back to normal. Just a possiblity that u may have over looked that. Good Luck.

 

Wires have been in there lil brackets the whole time.... no signs of wear (out of the ordinary) or burns or anything.

 

Im gonna hold off on any work on the car for now... just found an 86 z28 for under $1k... gonna check it out and maybe get a better deal.. keep suggestions coming though

 

BUY THE Z28!!!!
Junk the 6er
You'll be amazed how much more money the Z-28 is worth!

 

nevermind... found out its just a sport coupe with a 305... still gonna get it but not a z28

the 91 is staying... too much sentimental value... too much money invested so far... besides my 91 has a better bodystyle... as far as the front end and GFX... and i hate those round ghetto clusters in pre 91 cars... probably gonna get the 86 and swap it in the v6... but i wanna get the v6 running like before first...(im stubborn)

 

still have the 91 v6 still have the same f'in problem. Im starting to think its something in the fuel system. If i ever punch it, its almost like theres too much gas goin in... and you can smell the fuel in the cockpit seconds afterwards... any ideas?

 

If you can smell the fuel in the cabin immediately after, there's gotta be an exhaust leak, unless you have open exhaust or mufflers dumping under the car. With a catback dumping out the back, you should hardly EVER smell exhaust... Check the headers, around the Y pipe, and the pipe connections before and after the converter..

Too much gas... I assume you've checked your fuel pressure and it's ok? And ignition components? Too much fuel or too little ignition have the same effect... Wonder if you've got some bad fuel injectors.

Sorry if any if this is irrelevant...I haven't seen this post in quite a while and frankly it's too long for me to read through right now.

 

Holy Shiit *****! turns out it was the damned TPS this whole time. it was out of adjustment. I overlooked this because I figured it would do much harm but hey live and you learn.

Oh well I just got my 84 T/A today so now ive got two F-bodies runnin hard!

 

Glad to hear ya solved it! 2 F-Bodies...ROCK ON BRO

 

Damn where was I when this started? I was going to say fuel pump, but sounds like it was easier than that. When my fuel pump went it had pretty much the same symptoms.

Glad you got her figured out.

 

of course the fun doesnt stop there... timing chain just snapped... i have just clocked 199890 miles.... amazing really

 

Ooh man...that's not good. Not good at all. Timing chain snap is nasty business. Considering your cam runs off the chain. Did it destroy your valves?

 

"It's dead Jim"....was Bones talking to Cpt Kirk in an episode of Star Trek, I believe.

And since i'm tired at the moment and my mind is still hung up with running around in the dark with a shotgun after my friend thought someone was messing with his truck, what's a TPS?

 

a TPS is a Throttle Position Sensor but thats not even an issue anymore.

 

i see, i was guessing that's what it meant. Wanted to be sure in case i ever have the same problem. thanks

 

Go find the best used running low milage 3.4, swap stuff, go have some fun again!
Having TWO running strong F Bodies again is a great personal goal!

 

I was going to either say TPS or fuel pump. Good job on figuring it out, and on the two f-bodies

 

hmmm...... not a bad idea actually. i never thought of that... well i could do a search but since im here... anybody know how much a 3.4 goes for? OH AND PEOPLE I SOLVED THAT PROBLEM ALREADY WITH THE TPS... PROBLEM IS THE TIMING CHAIN NOW. THANKS

 

At my local LARGE downtown LA yard I pay/paid $800 & $900 respectivly (see sig).
Average on this board seems to be $500-600.
Price range has been $210 (Ohio) to my $900 (LA, CA).
Find the best low milage running used 3.4 engine ya can. Everything swaps & works very well.
I've done TWO SMOG TEST ONLY on my 3.4 Firebird & pass w/flying colors!
Enjoy the research, enjoy the hunt, enjoy the results.
I can get my source to ship up north is so desired. I'll pass the guys number if ya hit me up in email.