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1992 Chevy Corsica

Tiny
CRAZYMAN6677
  • MEMBER
  • 1992 CHEVROLET CORSICA
Electrical problem
1992 Chevy Corsica 4 cyl Front Wheel Drive Automatic

i have spark no injector pulses
Friday, September 18th, 2009 AT 11:02 AM

4 Replies

Tiny
JDL
  • MECHANIC
  • 16,098 POSTS
I'd check for an rpm signal. With the key on, you do have voltage at the injector? The rpm signal comes from the crank sensor, close to or underneath the ignition module.
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Friday, September 18th, 2009 AT 11:27 AM
Tiny
CRAZYMAN6677
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Scan tool shows cranking rpm it shows voltage on both wires to injectors
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Friday, September 18th, 2009 AT 12:24 PM
Tiny
CRAZYMAN6677
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Had autozone check ignition module said it is ok
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Friday, September 18th, 2009 AT 2:57 PM
Tiny
JDL
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Use a noid lite on injector plug, should be a pulse, engine cranking.

With all the injectors unplugged, key on, there shouldn't be voltage on the ground circuit, in my opinion. Maybe the ground circuit is shorted to voltage somewhere?
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Friday, September 18th, 2009 AT 3:41 PM

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