1997 Chevy S-10 PCM

1997 CHEVROLET S-10
Avatar
ERICDE
  • MEMBER
  • 8 POSTS
Computer problem
1997 Chevy S-10 4 cyl Two Wheel Drive Manual 300k miles

I recently replaced a leaky fuel injector, since then my truck has an oddly erratic idle. A small 1-200 rpm bounce every second, barely noticeable, I didnt notice it, but the smog guy did when the service engine soon light came on in the middle of the test, so he wouldn't pass it. So I read a little on the Idle Control Valve and how when disconnected the PCM has to relearn the correct idle. Is there a procedure i need to imply or should it relearn on its own. would that even contribute to an rpm surge?
Jun 29, 2010 at 7:35 PM
Advertisement
Avatar
RASMATAZ
  • ASE Certified Mechanic
  • 75,992 POSTS
  • ASE Certified Mechanic
Could be an idle relearning problem fast way to do it is use a Tech1 scantool or just clean out the idle air control valve and see what happens
Jun 30, 2010 at 4:35 AM
Join 2CarPros for free, one of the most advanced car repair communities on the internet. From first-time drivers to seasoned mechanics, everyone is welcome to reply, share details, and get better answers. You can add a temporary image or video first; uploads are limited to 20 MB.
Ask a Free Question
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.