Index Isuzu Isuzu Amigo / Axiom / Trooper / Rodeo / VehiCross - service repair manual 1999-2002 year
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6E2–167 RODEO 6VD1 3.2L ENGINE DRIVEABILITY AND EMISSIONS D Exhaust leaks – An exhaust leak may cause outside air D MAF sensor – The system can go lean if the MAF D Fuel contamination – Water, even in small amounts, Fuel System Diagnosis for the procedure to check for fuel contamination. D If none of the above conditions are present, replace the Test Description Number(s) below refer to step numbers on the diagnostic condition described in the “Diagnostic Aids” above. Reviewing the Failure Records vehicle mileage since the DTC P0131 –HO2S Circuit Low Voltage Bank 1 Sensor 1
Step Action Value(s) Yes No 1 Was the “On-Board Diagnostic (OBD) System Check” — Go to Step 2 Go to OBD System Check 2 1. Install the Tech 2. under “Conditions for Setting the DTC” criteria 4. Using a Tech 2, monitor Bank 1 HO2S 1 voltage. Does the Bank 1 HO2S 1 voltage remain below the 22 mV Go to Step 4 Go to Step 3 3 1. Ignition “ON”, engine “OFF”, review and record Tech 2 Failure Records data and note parameters. 2. Operate the vehicle within Failure Records conditions as noted. 3. Using a Tech 2, monitor “DTC” info for DTC P0131 until the DTC P0131 test runs. Note test result. Does Tech 2 indicate DTC P0131 failed this ignition? — Go to Step 4 Refer to Diagnostic Aids 4 1. Turn the ignition “OFF”. short to ground or a short to the heater ground Are the Bank 1 HO2S 1 signal circuits shorted to — Go to Step 5 Go to Step 6 5 Repair the Bank 1 HO2S 1 signal circuit. Is the action complete? — Verify repair — 6 1. Turn the ignition “OFF”, HO2S 1 and PCM disconnected. 2. Check for short circuit between the high and low signal circuits. Was there continuity between the high and low circuits? — Go to Step 7 Go to Step 8 7 Repair the short between the high and low circuits. Is the action complete? — Verify repair — |