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1992 Geo Tracker

Tiny
STEVESS10
  • MEMBER
  • 1992 GEO TRACKER
Engine Performance problem
1992 Geo Tracker 4 cyl Four Wheel Drive Manual

MY 1992 TRACKER QUIT. ONLY RUNS ON FUEL DUMPED DOWN TBI. THE PUMP MAKES 40 PSI AT REGULATOR RETURN INJECTOR AND TPS RESISTANCES ARE TO BOOK SPECS. THE ONLY CODE I GET IS 12 THE O K CODE. THANKS
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Tuesday, October 28th, 2008 AT 7:27 PM

3 Replies

Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Hi stevesS10 and welcome to 2carpros

The fuel pressure is fine -have you check for injection pulses meaning the injector/s are opening and closing if not fuel is not being delivered to the cylinders
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Tuesday, October 28th, 2008 AT 7:42 PM
Tiny
STEVESS10
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SORRY BOUT THE DONATION THING, ILL DO BETTER NEXT TIME. AFTER ALL I'M(WAS) DRIVING A 92 TRACKER. NOT SURE ABOUT THE PULSES I WAS UNDER THE IMPRESSION THAT A GOOD COIL MEANT GOOD PULSES. I GUESS THE ECM COULD BE SCREWING UP THE INFO TO THE INJ.
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Tuesday, October 28th, 2008 AT 7:56 PM
Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Check if the injector has power-if it has the ground drivers of the computer is defective
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Tuesday, October 28th, 2008 AT 8:03 PM

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1994
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