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Fuel pump probs--89 RX......FIXED w/update
Posted 12 May 2005 - 12:00 AM
Posted 12 May 2005 - 02:12 AM
Posted 12 May 2005 - 11:40 AM
Posted 12 May 2005 - 11:22 PM
Added a ground wire to the FP, it works fine now.
The engine was still having problems. It seemed like it was fuel starved and running on2/3 cylinders. I could barley get it up to 3K and hold it. I tried just about everything until I was adjusting the disty for the umpteenth time, when I turned it I bumped the main wiring harness and it sputtered and died.
Doh! I checked the plugs (I could swear I pushed them suckers together tight) and they were both loose. I had to use the frame rail to push against but they are tight now!
After that she fired right up
After I did some quick fine tuning, I jumped in (after rearranging stuff inside ) and actually drove it down the street and back.
I've had the car for over a year now, gone thru 3 engines trying to get one that was decent enough to put together. Not much luck with ones that had blown HG, they pit the cylinder walls bad when they arent drained of water.
Thanks to Qman for providing the running engine and parts car.
My RX is finally running! W00T! Its going to be ready for WCSS7, I hope I can get the body work done by then too.
Posted 13 May 2005 - 10:12 AM
Posted 13 May 2005 - 10:16 AM
Posted 13 May 2005 - 11:04 AM
It's so common that most Oz people I know, convert the earthing system from the ECU to the car body even before it becomes a problem.
Funny how Subaru changed the fuel pumps in the Legacy & later to simply earth out.....
Posted 13 May 2005 - 11:27 AM
Posted 13 May 2005 - 07:22 PM
Posted 13 May 2005 - 09:03 PM
On the EFI models, the positive side of the fuel pump is controlled by the fuel pump relay, which is controlled by the ECU, while the negative side goes back to the ECU as well. Why? Who knows.
The problem is with whatever controls the negative side in the ECU, so you simply earth the negative wire from the fuel pump to the body instead.
Posted 13 May 2005 - 09:37 PM
mine's just carbed..... what's EFI?
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