changed the fuel pump relay and now no prime - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

quickdiversion · 05-13-2014, 04:36 PM

OK this is weird.
I have wired my fuel pimp in a stand alone circuit and it has worked fine for 5 years now. The car was having issues shutting down after the timer clicked off and I could hear the relay clicking around a lot so after dealing with pulling the fuel pump fuse to turn the car off for about 4 months, I decided the replace the relay.

After replacing the relay, it won't prime.
The power line works I know because if I connect it to the pump line, it primes.
I check continuity from my signal line back to pin #104 I believe it is, the black and pink line, and I have continuity.

This is a ground switch signal so when I have the car on and check the for continuity to ground, I do not have it...

did I damage the ecu?
or what can I check to see is going on.
everything else works fine , the ecu works fine as I can tell, because nismotronic is reading everything like normal and no error codes.

I'm lost, it worked, than it didn't.

quickdiversion · 05-13-2014, 04:39 PM

please close this thread, it posted twice for some reason.

05-13-2014, 04:36 PM	#1
quickdiversion Zilvia Junkie Join Date: Aug 2012 Location: nj Age: 41 Posts: 341 Trader Rating: (4) Feedback Score: 4 reviews	changed the fuel pump relay and now no prime OK this is weird. I have wired my fuel pimp in a stand alone circuit and it has worked fine for 5 years now. The car was having issues shutting down after the timer clicked off and I could hear the relay clicking around a lot so after dealing with pulling the fuel pump fuse to turn the car off for about 4 months, I decided the replace the relay. After replacing the relay, it won't prime. The power line works I know because if I connect it to the pump line, it primes. I check continuity from my signal line back to pin #104 I believe it is, the black and pink line, and I have continuity. This is a ground switch signal so when I have the car on and check the for continuity to ground, I do not have it... did I damage the ecu? or what can I check to see is going on. everything else works fine , the ecu works fine as I can tell, because nismotronic is reading everything like normal and no error codes. I'm lost, it worked, than it didn't.

05-13-2014, 04:39 PM	#2
quickdiversion Zilvia Junkie Join Date: Aug 2012 Location: nj Age: 41 Posts: 341 Trader Rating: (4) Feedback Score: 4 reviews	please close this thread, it posted twice for some reason.