Apexi Power Fc Repair? > Fp Circuit

[DatsunMotorSports]

So last week I went out to start the car in the morning and the car would not start. The Ignition Fuse had blown. I found it and replaced it. Then I noticed the fuel pump was not priming. So after a bit of testing the circuits for the pump I decided to try the stock ECU. The stock ECU works with no problems. So its gotta be the ground switch inside the Power FC.

I opened up the cover on the FC and did not see any heat scoring or obviously burned up components. So the next step is to contact a reputable shop for repair.

Im open to suggestions. I found this place and sent them an email about getting my PFC diagnosed and repaired Rising Sun Performance

Can someone please post a anti-flyback circuit as well so I can permanently resolve this issue. As many of the RB25DET ecu's I have seen with this circuit burned out on the boards this fix should be public knowledge.

Today I found the culprit.

The fuse that supplied power to the ECCS relay had an intermittent problem. That particular fuse was a 12V source at all times. The little glass fuse was apparently defective and every time I tested it it was good. YES I ohm'd out my fuses and voltage drop tested them... So with a clear head I went out to the car this morning and noted that the relays and apexi boost valve were rapidly clicking again like power was not being applied through the main voltage circuit. I went to pop the fuse out and suddenly everything came on...

I also noted that the fuse gets warm after long periods of driving. Its not hot, but maybe the heat aided the defect.

My guess is the heat, bumpy roads, and defect in the fuse caused the power failure that induced the voltage flyback that took out the fuel pump ECU ground.

Thanks

and sorry if this is in the wrong section... nothing really matched Electronic Problems that I saw... If there is and I missed it somehow maybe a moderator can move this?

Ray A.

Edited June 4, 2010 by DatsunMotorSports

[DatsunMotorSports]

I opened up the cover on the FC and did not see any heat scoring or obviously burned up components. So the next step is to contact a reputable shop for repair.

Im open to suggestions. I found this place and sent them an email about getting my PFC diagnosed and repaired Rising Sun Performance

APEXi-USA says they can repair the unit for me. They offer repair services starting at a minimum $50 fee and up to a $350 repair fee for a complete replacement. I spoke with their techs on Friday and on Monday and requested a RMA # to send it off.

It sounds like they send it out of the US to get repaired. The turn around is about 1-2 months.

Ray