Mechanics

92 S10 RUNNING RICH

1992 Chevrolet S-10 • 6 cylinder 4WD Automatic • 206,000 miles

92 S10 4X4 4.3L RUNS RICH (BLACK SMOKE) COOLANT SENSOR READS PROPER AS PER THREMOTER THE TPS AT IDLE SHOWS.46V THE MAP IS AT 4.95 V KOEO AND 2.34 @IDLE THE HO2S IS AT.467V KOEO AND.867-.980V IDLE
IS IT POSSIBLE THAT THE FUEL PRESSURE REG IS STUCK SHUT OR INJECTOR THAT BAD
OR IS A ECM NOT RESPONDING CORRECTLY?
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TDTHOMPSON
August 8, 2011.



The map sensor is at 4.95 volts at idle?If that is way off.

Saturntech9
Aug 8, 2011.
Have you checked for codes?
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Saturntech9
Aug 8, 2011.

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