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P0303-CYLINDER 3 MISFIRE (CONTINUED) 11. (K13) INJECTOR CONTROL NO.3 CIRCUIT Turn the ignition off. Disconnect the C2 PCM harness connector. CAUTION: Do not probe the PCM harness connectors. Probing Was a problem found with the (K13) Injector Control No.3 cir- Yes >> Repair the excessive resistance or short in the (K13) Injec- tor Control No.3 circuit. Perform the POWERTRAIN VERIFICATION TEST. (Refer No >> Go To 17 12. FUEL SUPPLY LINE RESTRICTED Turn the ignition off. WARNING: The fuel system is under a constant pressure (even with the engine off). Before testing or ser- Install special tool #6539 (5/16 9 ) #6631(3/8 9 ) fuel line adapter and the fuel pressure gauge between the fuel supply line and the fuel pump module. Ignition on, engine not running. With a scan tool, actuate the ASD Fuel System test and observe the fuel pressure gauge. NOTE: Fuel pressure specification is 407 KPa +/- 34 KPa (59 psi +/- 5 psi). Is the fuel pressure within specification? Yes >> Repair or replace fuel supply line as necessary. Perform the POWERTRAIN VERIFICATION TEST. (Refer to 9 - ENGINE - STANDARD PROCEDURE) No >> Go To 13 9 - 348 ENGINE ELECTRICAL DIAGNOSTICS WK |