ok i have a problem that has been going on for a while now... my car will start..... then like 20 -30 sec after startup it starts to spit and sputter and the check engine light flashes with the miss/stumblei just got a code to stay on and it was 42...the problem used to occure only at WOT in the higher rpm's. but i have replaced the pick up coil, coil, ignition module and the knock sensor... the only other thing is the actuall EST module... and might think its the fuel pump... prims to like 30ish then falls off fast...... just wanna fix this before my motor swap.... please help... i have looked all over... could my module be bad?agian.... it got worse with the new p/u and coil.... now does it more often... thanks...

 

ttt

 

I have the same problem but it only occurs on my car after I have been driving for 10 minutes or so and the car has had time to warm up. When I get the code, it doesn't feel as though there is a stumble or loss of power or anything. I replaced the ignition module about 8 months or so ago. Don't know if it will help with any possible conclusions as to what my problem is exactly, but I am using the MSD Ignition Coil.

Any help would be appreciated by myself and 86IROCTHD.

TIA
John

 

i just got the code to come on... but my light is flashing and the car is i guess dying and then catching agian and firing back up... i know i have bad fuel pressure but once started it seems to be fine and runs good with lost of power till higher rpm's but since i changed the coil and pick up its gotten worse.... so i dont know what the deal is but please help....