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1996 Chevy Cavalier lose signal on number 3 injector

Tiny
FREYGUY04
  • MEMBER
  • 1996 CHEVROLET CAVALIER
Electrical problem
1996 Chevy Cavalier 4 cyl Front Wheel Drive Automatic

I have been workin on this car for 2 weeks now engine is skipping we have changed head gasket coilpack and ignition module. Has not fixed problem we test all 4 banks and its missing on #3 fuel injector. What else can cause this problem?
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Saturday, September 4th, 2010 AT 7:27 PM

4 Replies

Tiny
MADMIKE1735
  • MECHANIC
  • 951 POSTS
Absolutely sure its the injector? Or is it just a cyl 3 misfire? If you narrowed it down to an injector, have you checked the harness with a noid light? Also, try testing the injector your self. You can also try swapping the #3 injector with the #4 injector. Im sure you have a code for a cyl 3 misfire, clear it. Swap the injectors. If your misfire code comes up #4 then its that injector. Replace it.
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Saturday, September 4th, 2010 AT 7:34 PM
Tiny
FREYGUY04
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  • 2 POSTS
We have swaped injectors I even got new one still nothing we are only getting signal to #3 injector once in while. Didnt know if it could be computer problem
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Saturday, September 4th, 2010 AT 7:40 PM
Tiny
MADMIKE1735
  • MECHANIC
  • 951 POSTS
Usually the injectors get their signal from the coilpacks. Have you checked compression in the # 3 cyl?
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Sunday, September 5th, 2010 AT 1:17 AM
Tiny
FREYGUY04
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  • 2 POSTS
Thanks but figured it out broken off wire were the injector wire goes into the computer
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Sunday, September 5th, 2010 AT 6:45 PM

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