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Help with code 54 now

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Help with code 54 now

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Old 10-10-2018, 09:28 PM
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Help with code 54 now

my code 36 is gone

now code 54

do I just get a new fp relay
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Old 10-10-2018, 09:37 PM
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Re: Help with code 54 now



Check the voltage at the ecm b2. B2 would be if you have a 86-89 tpi maf 1227165 ecm. The ecm monitors fuel pump voltage there. It could be a bad splice on this circuit or the ecm.

Last edited by Tuned Performance; 10-10-2018 at 10:15 PM.
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Old 10-11-2018, 08:47 PM
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Re: Help with code 54 now

I have bbk underdrive pulleys and when I first used them 2 years ago it ideling didn't spin the alt fast enough to charge the car and it wouldn't start
so it was 12.2
so I got a way smaller alt pulley from a guy at a alt rebuild place by fluke he had one and I used it it was 13.5 to 14.5
I started getting the code 54 years ago after I put on those bb
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Old 10-13-2018, 10:24 PM
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Re: Help with code 54 now

an update

I bought a new fuel pump relay and so far no code 54

so im happy time will tell.
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