Ok fellas hers the situation. Well, here i has a 89 gta 350. The car is possesed, sometimes the car will start and rev and drive decent. Other times the car will not start. Then sometimes (most of the time) the car will start and idle and thats it. You cant rev the car at all it will just idle. You can hold gas to the floor and it will not rev and it will not die. The car has also died just going down the road, like someone turned the key off. The car has tfs heads, zz9 cam, miniram .... Things we have replaced and tyd are: new computer , maf, fpr,injectors, timing and checked all grounds. The car is holding 45 psi of fuel pressure running and not. The timing is at 8 degrees. Its not throwing any codes. Tps is set right and working properly. Iac has been cleaned and seems to work. The ignition module inside distributer has been replaced. I cant figure this thing out. I just thought(hoped) maybe some of u had any ideas.
Very sorry for long post!!!

 

Is this thing drive by wire or something?
Does it stumble when you hit it to the floor and it just idles, or does it not respond at all?
I would have said to check your ECM or the TPS, but you already said you changed those.

What is the last thing you did before the problem started happening?

Did you install the full knight rider conversion kit and your name isn't Michael?


Just kidding on that last one.

 

lol
It will rev about 500 rpms and thats it and iy will not die.

 

You don't have a Rev. Limiter on this do you?
Does it behave the same way when you rev it from the engine compartment?
Assuming it does.
Just sometimes those darn simple things kill you.
How did it start happening?
Did you put a bunch of parts on it then it started happening or were you driving it one day and it worked and the next day it didn't?

 

No i doesnt have a rev limiter. Yes its the same from engine copartment. Just started happening after heads cam itake swap. tfs heads, zz9 cam, tpis mini ram.
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You think it could be the pickup coil module inside the dizzy? I have changed the control module but i was told there is also a pickup coil module in there also.

 

Hmmm I would think that if the distributor was not working properly you would get a very ruff running engine or possible back fireing when you hit the gas hard.

Did you reprogram the computer when you put in the other cam?
Not sure how different this cam is from your original, but if it was off enough, the injectors could be firing at the wrong time. Just a thought.

Kind of drawing at straws currently.

 

Just doesnt make any since at all. Sometimes it runs decent then other times it acts up. I think its possessed or something. I just am all out of options at this point. The computer is stock. What ditermines when the injectors fire? Is there any relay to the maf or any sensors that could cause this

 

True.. I forgot about it being eratic.
could be a bad ground or relay.
Not sure what to say, mainly because you have changed so much.
Love to see what some other people think.
I know I have never had that exact issue before..

 

help!!!