Question about 1992 GMC Yukon

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Code 54 fuel pump not coming on

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I have seen this many time and I would start with replacing the fuel pump and filter.

Posted on Apr 01, 2014

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Posted on Jan 02, 2017

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Code 54 is fuel pump circuit, Low voltage,will cause car not to start. Wiring open circuit/short circuit to ground, fuel pump relay, engine oil pressure warning lamp switch
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What is the 1987 pontiac fiero gt v6 check engine light code list?


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My check engine light comes on after driving a while it first had code 32 and then the car (92 firebird, 305) does not start now and checked the codes and they are code 32,53,54. My engine does not role...


code 32 - egr system error.
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suggest that your vehicle anti theft system is causing the no turn over condition

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1 Answer

94 s-10 code 54 set truck has new fuel pump -fuel filter-fuel injector-regulator-ing.module-oil switch after truck warms up hard to start until it cools down


that code is for a loss of 12v to the fuel pump circuit. most likely the relay. change it, and also look at the pump harness ground on the frame, below the filler neck on the top of frame for corrosion or broken connection. from what you describe with the heat issue, its the relay

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Engine codes 54 1991sunbird 3.1


I think this code is defined as follows:
Fuel pump circuit fault or Mixture Control (M/C) solenoid fault or Electronic Control Module (ECM) fault/EGR solenoid #2 failure
Check your fuel pump relay as well - this could be the fault in the fuel pump circuit.
Hope this helps, Sherwin

Apr 18, 2009 | 1991 Pontiac Sunbird

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