Thread: Sputtering and P0300 code

Originally Posted by Thinkmoto

Find out which cylinder is misfiring when you get the blinky SES. Try swapping that coil pack with another 1st. If its multiple cylinders I'd take a look at your cat. Also that gas is over 6 months old? Stabil or not get that **** out.

Blinky SES only triggers the 0300 code...I wish it was cylinder specific then I have somewhere to hunt.

Am picking up new coils and ICM tonight from a friend who had spares from an engine rebuild from the donor car. We shall see how those are. They only have 5k on em.

New coils and ICM in.
Still can pull the same P0300 and it mostly triggers the flashing "real time" SES light from 40-50 under light/medium acceleration.

Going after o2 and MAF tonight.
Also have a new MAP sensor but I don't think that's it.

i got the same thing going on. i have replaced my MAF sensor, bought all new vacuum lines and still got the code. i check the msd coils that i had and they weren't @ spec so i put old stock one on and still the same code! i also checked the spark plug wires to make sure they had ohm resistance. they were good also! the only thing i noticed is that i pulled my plugs to see how they were after replacing them and they were white so i'm either running to lean or i'm guessing that my injectors might be stuffed.... Keep intouch so we can figure this out!!!