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P1172 Diagnostic Trouble Code Discussion for June 2006

Secondary Fuel Pump Insufficient/No Fuel Flow

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Trouble Ticket Help Requests for DTC P1172
Help Request Posted
1996 Jaguar XJ6 4.0L Excessive Emissions, Poor Idle Quality, Surge, Cuts out, Misfire, Poor Fuel Economy, MIL Lamp on VIN: SAJHX1746T
P1172: All cylinders too rich. Based on our IATN research we determined that it could have been all due to an EGR valve that stuck open causing the intermittent dying issues as well as the codes and the miss-surge at highway speeds. We replaced the EGR and plugs and changed the oil but the ...
June 13, 2006