Well, my car is struggling at low rpms, til i kick its *** in too low a gear then it smoothes out. the ses light began flashing. i take it to autozone to be scanned and it reads nothing. how can i tell if my pcm is shot?

 

its probably not your pcm, i would check the ignition system first
the EGR? the 02 sensors? just trying to give you some ideas.
jesse

 

What year LT1 do you have?

 

Its obd2, 1996...i know him

 

my wires and plugs are ok. the battery is new. opti has 96000 on it. what about the pcm not sending any power to the actron?

 

ACTRON??? Am I missing something? What the hell is that?

 

its a scan tool used to get codes from the pcm

 

o...gotcha, that makes sense I was thinking internal PCM type stuff, scan tool didn't even dawn on me. Thanks...

 

that being said, is there something else that could cause that? it worked fine a couple weeks ago.

 

ive "heard" flashing SES is caused from misfires.

but i have had the exact same problem you just described and it was a burnt plug wire or 2 from my header install... that does cause a misfire. i am probably 95% confident thats your problem. inspecting the boots and wires will just kill time and wont find many suspected trouble spots unless one is obviously fried so popping your hood at night is the easiest way to look for the culprit. and if youre not sure what to look for, its small archs of electricity.

 

Wait a minute. Did you say you had "96000" miles on your opti? I would strongly recommend installing a new one. I mean it's basically a distributor cap and rotor just like on older rear mounted distributors and no cap and rotor is gonna be very healthy at that kind of mileage. It should be changed weather it is the problem or not. Just my opinion though...

Ken R. 95Z

 

i know i should chamge the opti soon, but i just wana fix the problem for now. you thiunk it is the opti? i dont think it is a wire or nothing.

 

well... the throttle body gets really loud about every 15 seconds and lasts about 10 seconds when i let it idle. i makes a metal screeching grinding sound really when it makes the noise. its wierd, any suggestions?


__________________

 

did u try taking off the intake elbow to see wtf the TB looked like inside?

 

I agree with Ken.....I would replace the opti .....thats alot of miles for a distributor.