1990 Buick Century injectors

1990 BUICK CENTURY

MACATNIGHT

MEMBER
2 POSTS
FOLLOW

1990 Buick Century 6 cyl Automatic 65000 miles

injectors wont spray gas has fire going to both wires going to injector when key is on changed the computer

Aug 19, 2010 at 11:35 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.

JDL

CAR REPAIR CONTRIBUTOR
16,098 POSTS

Unless you unplug all injectors, there will be voltage on both wires. On this system, the grounds are shared. Use a noid lite, see if you have injector pulse? The computer controls injector ground. If you have voltage at the injector, but no ground, one possibility is the computer doesn't see an rpm signal. There could be more than one reason for that.

Aug 19, 2010 at 1:45 PM