1992 Geo Tracker

1992 GEO TRACKER
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STEVESS10
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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
Oct 28, 2008 at 7:27 PM
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RASMATAZ
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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
Oct 28, 2008 at 7:42 PM
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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.
Oct 28, 2008 at 7:56 PM
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RASMATAZ
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Check if the injector has power-if it has the ground drivers of the computer is defective
Oct 28, 2008 at 8:03 PM