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High Idle - Rich Exhaust
1989 CHEVROLET C3500 7.4l TBI Automatic Transmission Fuel Pressure: 11.5 psi Manifold Pressure: 18 hg Thermostat: 205° F Timing: 4° BTC Controlled Idle: 750 rpm/13 counts Minimum Idle Air Rate: 700 rpm TPS at Idle: 0.82 volts MAP: with-in ranges o2 Sensor: voltage high at idle (0.8-0.9v +/-)...- Jon_Bueno
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- emissions high idle tbi
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- Forum: Engine Performance + Maintenance
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