leaky injectors??

[birdman]

ive been tryimg to solve an ongoing problem and am having diffuicult time. I have a rough idle 1/2 the time and the exhaust smells rich so its leading me to belive that i have leaky/dirty injectors. is there anything else that could cause those symptoms? ive replaced the air filter,plugs,wires,coils,iac,tps, and icm. someone i know said that i should try some injector cleaner called techron?? any ideas?

[stantmann]

RE: leaky injectors??

I have at least one leaking injector now. Whenever I let the car sit for a couple hours, it starts and will idle rough, and usually will die. Typically, I rev the engine at 4000 rpm's for about 10 seconds, and after a few seconds it will settle down. Doesn't matter if it is hot or cold, it's always the same. One day I will get down there and replace the o-rings, and if necessary all the injectors.
I would think you don't have leaky fuel injectors, but probably a vacuum leak somewhere - Listen for it. If not a vacuum leak, then one would think the IAC, but you've tried that. Check the obvious- A clogged pcv valve. A friend of mine had the same problem, and replaced the pcv, egr, iac, and it ended up being one fuel injector. How do you diagnose just one injector without taking them out one at a time? I would suggest Ebay, and get all six for the price of one!

[your_I.D.]

after the car has set for an hour or so. Pull the vacuum line off the fuel pressure regulator. If there is gas its bad. That will causing you symptom.

[birdman]

every once and a while i have to rev it when i start it to clear it out but ill check and see if its the fpr or pcv. thanks.

[your_I.D.]

Did you check fuel pressure regulator vacuum line?