L83 swap fuel pump control module - LS1TECH - Camaro and Firebird Forum Discussion

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L83 swap fuel pump control module

 
Old 01-09-2019, 02:21 AM
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Join Date: Sep 2016
Posts: 19
Default L83 swap fuel pump control module

Hi guys

I have an issue about the fuel module harness wiring, everything is fine and connected to the ecm, pressure sensor is connected everything is good except there is no power in PIN8 in the connector which is the fuel supply voltage wire that I should connect it to the positive wire of the fuel pump.

So the car doesnít start because the fuel pump is not working because thereís no power from the positive fuel pump wire from the module.

I checked the wire and the plug for cracks and itís fine, Iím using new control module and sensor.

the ecm shows 2 codes

1- secondary fuel pump circuit is high - P0232
2- ISO/SAE reserved - P023F

It seems like the fuel pump have its own signal because when I turned my key on I found a signal in the positive fuel pump wire. Maybe because of the old relay system

Pump im using is aeromotive 340

please help
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