Fuel Pump Runs Continuously - how to prevent....?
Hi,
I am swapping a 2010 Camaro LS3/TR6060 drivetrain into a 2004 BMW Z4. (first that I know of)
It will be California CARB/smog legal......
I have it mechanically in, and reflashed enough to get it running.
Driving around the block is AWESOME - think modern Cobra...........
I am used to vehicles that only enable the fuel pump for about 3 seconds if the engine is not running.
Is that how the LS3 should operate?
My swap has the fuel pump running continuously when the ignition is in "run".
I do not have the Chevy "Fuel System Control Module", so am running the output from the Chevy ECM connector X1-50 (through a signal inversion transistor) to the BMW Fuel Pump Relay control. (BMW needs "low" to enable the relay coil)
I have tried the "F0585" (FSCM Fitted) parameter both left at default "yes", and have reflashed to "no".
any suggestions?
Thanks
Fuel Pump Runs Continuously - how to prevent....?
Sounds like a cool project! I'm from CA too.
The GM ECMs should only run the fuel pump for a few seconds on key on. I don't think the FPCM parameters in the tune do anything if its not fitted with one. It may be easiest to run a new relay off the ECM and tap into the fuel pump supply wire. That how most of the conversion harnesses do it.
Are you running the factory BMW fuel pump and regulator?