Pcm problem maybe

Tiny
JO HERR
  • MEMBER
  • 2003 CHEVROLET S-10
  • 4.3L
  • V6
  • 4WD
  • AUTOMATIC
  • 168,000 MILES
I have a crew cab 4×4 it started running really badly. I did not have time to check it out drove it like that for a week until I could look at it. I found that the spark plug wire had burnt through and was shorting out on the engine. I put a wire I had from before on it and it ran fine for a day then started bearly running. I cannot drive it. It will still start but it wont go over 3000 rpm's its throwing MAF, crank shaft/ cam shaft sensors codes. I replaced all three still same thing. My question is could it be the PCM has shorted out?
Monday, August 22nd, 2016 AT 2:51 PM

1 Reply

Tiny
HMAC300
  • MECHANIC
  • 48,601 POSTS
Have it erased then run again, check battery for condition including load test as a weak battery will send false codes. also check for a vacuum leak and check fuel pressure with a gauge auto parts rent it.
https://www.2carpros.com/articles/how-to-check-fuel-system-pressure-and-regulator
Was this
answer
helpful?
Yes
No
+1
Monday, August 22nd, 2016 AT 3:04 PM

Please login or register to post a reply.

Sponsored links