97 s14 ka24de no power to ECU!!?? - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

redsx13 · 07-06-2016, 10:04 PM

Hey guys, in need of some help here. Was driving along and suddenly lost power. Car cranks but no fuel pump, no spark. All accessories work, and dash lights up. Looks like the ECU isn't getting any power (no check engine light on dash, no power to the B/W wires on the back of the ECU, and no link to the OBD2 scanner)

any ideas would be appreciated, checked the obvious fuses. Not really sure which is the ECU relay, but I checked most of them.

redsx13 · 07-13-2016, 08:08 PM

Solved the issue. For anyone with similar problems, the ecu relay is the blue relay located next to the ecu. This relay is operated by the ecu but is supplied a constant 12v source. The fuse which supplies power to this relay is located in the engine bay (7.5A) and labeled "EGI".

SoundEfx · 07-14-2016, 09:22 AM

Glad you solved the issue and updated the thread for future users.

07-06-2016, 10:04 PM	#1
redsx13 Zilvia Junkie Join Date: Jan 2009 Location: Agoura Hills, Ca Age: 31 Posts: 572 Trader Rating: (6) Feedback Score: 6 reviews	97 s14 ka24de no power to ECU!!?? Hey guys, in need of some help here. Was driving along and suddenly lost power. Car cranks but no fuel pump, no spark. All accessories work, and dash lights up. Looks like the ECU isn't getting any power (no check engine light on dash, no power to the B/W wires on the back of the ECU, and no link to the OBD2 scanner) any ideas would be appreciated, checked the obvious fuses. Not really sure which is the ECU relay, but I checked most of them.

07-14-2016, 09:22 AM	#3
SoundEfx Zilvia FREAK! Join Date: Aug 2015 Location: WA Posts: 1,230 Trader Rating: (1) Feedback Score: 1 reviews	Glad you solved the issue and updated the thread for future users. __________________

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07-13-2016, 08:08 PM	#2
redsx13 Zilvia Junkie Join Date: Jan 2009 Location: Agoura Hills, Ca Age: 31 Posts: 572 Trader Rating: (6) Feedback Score: 6 reviews	Solved the issue. For anyone with similar problems, the ecu relay is the blue relay located next to the ecu. This relay is operated by the ecu but is supplied a constant 12v source. The fuse which supplies power to this relay is located in the engine bay (7.5A) and labeled "EGI".