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P0307-CYLINDER 7 MISFIRE (CONTINUED) 11. (K26) INJECTOR CONTROL NO.7 CIRCUIT Turn the ignition off. Disconnect the C1 PCM harness connector. CAUTION: Do not probe the PCM harness connectors. Probing Was a problem found with the (K26) Injector Control No.7 cir- Yes >> Repair the excessive resistance or short in the (K26) Injec- tor Control No.7 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 the 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 - 388 ENGINE ELECTRICAL DIAGNOSTICS WK |