1989 Pontiac Firebird ecm

1989 PONTIAC FIREBIRD
89,000 MILES • V8 • 2WD • MANUAL
Avatar
JUSTAHDMAN
  • MEMBER
  • 2 POSTS
yes could someone help was driving and car started bucking wanted to stall was ok when taking off but wanted to stall when came to stop idle is up and down checked code and is 42 replaced cap,rotor,plugs,module still not running right, any ideas
Jun 12, 2010 at 11:55 AM
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.
Advertisement
Avatar
DOCFIXIT
  • CAR REPAIR CONTRIBUTOR
  • 18,828 POSTS
May not be ECM but ignition module inside DIST see diagram


https://images.2carpros.com/forum/automotive_pictures/198357_Graphic_477.jpg

if open or short in 423 will set 42 code. Much cheaper than ECM to replace.
Jun 12, 2010 at 12:48 PM
Advertisement