04-28-2009, 12:48 PM
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Join Date: Apr 2004 Location: Browns Town
Posts: 2,933
Car: 86 Monte SS (730,$8D,G3,AP,4K,S_V4) Engine: 406 Hyd Roller Transmission: 700R4 HomeBrew, 3.8K stall 3 diskLU Axle/Gears: 3:73 Posi, 7.5 Soon to break | Re: Need ECM help Not sure what the "green" wire is so...
The ECM may provide ground or possibly the 12V output for the fuel pump relay. Relay might be coming on but not getting power at the contacts.
Confirm you have 12V at the FP relay. The ECM turns on the relay to run the pump.
There is also an oil pressure switch that will bypass the relay and provide the pump with power in case the relay was to fail. Cranking could take a bit longer because oil pressure has to develop before you would get fuel.
HTH |
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