hey guys - had this posted in computer / fuel but no one really looks there so i figure ill post it here too:

I just bought this car a few weeks ago. the previous owner put in Piper Cams 272* - which i have been told should not throw codes

all mods are in my sig

right now it is pulling p0300 - combustion misfire.... p0302 misfire cyl2 ... m0304 misfire cyl 4

when i first got it (before replacing anything) it was pulling p0300 0301 0302 0303 and 0304

ive replaced all spark plugs with BRK7E gapped to .028....replaced all 4 coil packs with new ones....

im looking for other suggestions... i need to get this gone by 5/18 so i can register it, i have temp tags now


REPLACED SO FAR:
- all 4 coil packs
- ICM
- spark plugs (bkr7e @ 0.028 gap)
- ECT or CTS whatever you want to call it... COOLANT TEMP
- Cleaned MAF

 

bump....replaced the ICM now, and still no fix

 

replace the ECT

 

engine coolant temp sensor?

.... or did you mean somethign else? im confused

 

oh i wanted to note also...i dont feel hesitation or stuttering...car runs great and runs strong...just CEL is thrown

 

have you cleared it? it might just be a stored code

 

cleared it MANY times....it keeps coming back....i dont know what else to check or change.....

did you mean ECT as coolant temp sensor? or something else?

 

ya temp sensor, the techs say it can do funny things to our cars sometimes. did you double check the gaps? idk what else to tell you to change lol.

 

doubled checked em...im outta luck...ill try the ECT..have you heard of it causing misfires before?

 

yes a couple of times. also do some seafoam treatment.