1994 Geo Prizm check engine light on code 12

1994 GEO PRIZM
200,000 MILES
Avatar
RSESCHE
  • MEMBER
  • 3 POSTS
Car runs well but check engine light came on a few days ago. I tried pulling ECM fuses but code came right back. What should I do next and can I still drive the vehicle
Sep 20, 2011 at 8:42 AM
Avatar
ASEMASTER6371
  • ✓Experienced Mechanic
  • 52,796 POSTS
code 12 is no rpm signal to the ecm. if the engine is off and key on, this is normal
if it is running, then you have a issue with either the crank sensor or the distributor.

Roy
Sep 20, 2011 at 9:50 AM
🔧 Tools & Auto Repair Parts
Find automotive tools, diagnostic equipment, and replacement parts for your next repair.
Shop on Amazon →
Paid affiliate link. As an Amazon Associate, we earn from qualifying purchases.
Add a reply
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 new question

Frequently Asked Problems for This Vehicle