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P1026 Diagnostic Trouble Code Discussion for March 2014

Fuel Injector 6 Circuit Malfunction

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Trouble Ticket Help Requests for DTC P1026
Help Request Posted
2008 Porsche Cayenne S 4.8L Poor Idle Quality, Hesitation, Cuts out, MIL Lamp on VIN: WP1AB29P68
P1026: fuel high pressure implausible signal. Came in with P1026 stored, fuel high pressure implausible signal. Replace the high pressure fuel pump, still has code P1026 coming back. Replace fuel high pressure sensor, still has code coming back. Idle is poor and engine cuts out @ 3000 rpm. Rail pressure v...
March 13, 2014