Help with code 54 now

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10-10-2018, 09:28 PM

bensbaby

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Car: 1988 GTA Trans am 1 owner since new

Engine: 383 built

Transmission: 1995 camaro t56 6 speed

Axle/Gears: 3.24 posi 9 bolt

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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10-10-2018, 09:37 PM

Tuned Performance

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Car: 1967 Camaro, 91 z28

Engine: Lb9

Transmission: M20

Axle/Gears: J65 pbr on stock posi 10bolt

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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10-11-2018, 08:47 PM

bensbaby

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Thread Starter

Join Date: Apr 2008

Location: Smiths Falls

Posts: 446

Likes: 10

Received 3 Likes on 3 Posts

Car: 1988 GTA Trans am 1 owner since new

Engine: 383 built

Transmission: 1995 camaro t56 6 speed

Axle/Gears: 3.24 posi 9 bolt

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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