ECU light wont come on, the two green relays.... MAJOR PROB...Please Help!

Discuss the RB20, RB25 and RB26 series engines.
foulplay
Posts: 126
Joined: Wed Feb 14, 2007 1:21 pm
Car: 1992 S13 Fastback

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The car was running like a champ last weekend. Now last night we were under the dash finishing up the wiring. Only one wire was connected, and it should have been for the A/C. Now after hooking up this one wire we wnet to start the car. The car would click and not turn over, my dad clipped the wire that we hooked up, and the car now cranks, but the ecu light wont come on, the two green relays wont click, and the fuel pump doesnt prime/turn on.

Any help would be greatly appreciated!

ThanksDanny


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Shocker
Posts: 2082
Joined: Sun Aug 01, 2004 2:40 pm
Car: 89 240sxHB rb26/30

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check your main fuses man.

foulplay
Posts: 126
Joined: Wed Feb 14, 2007 1:21 pm
Car: 1992 S13 Fastback

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We checked the two boxes in the engine bay and the fuse box in the d/s kick panel. ALL were still good.

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USMCgetsome
Posts: 2030
Joined: Wed Apr 14, 2004 7:38 pm
Car: OWN S13.5 RB25DET/2003 G35
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quit messing around and get your volt/ohm meter out and shoot for power at the green ign and eccs relay. two green relays. Check those and get back to us. Also fuel pump fuse.

foulplay
Posts: 126
Joined: Wed Feb 14, 2007 1:21 pm
Car: 1992 S13 Fastback

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Right now we only have the ECU conected. The dash plug (brown) is not connected. Can only find 12v on the white/purple stripe (always hot). Hopefully we only lost the 12v when the key is turned on.

How do you check the relays.
Modified by foulplay at 2:30 PM 4/21/2007

foulplay
Posts: 126
Joined: Wed Feb 14, 2007 1:21 pm
Car: 1992 S13 Fastback

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DEE Da DEE Doh! Ummmm we had 1 bad solder.....NO...no... im not gonna lie we forgot to plug back in the gray plug beside the battery.

|||||Look at the bouncing bunny

Cpt_Impossible
Posts: 488
Joined: Thu Jul 06, 2006 8:03 pm
Car: G35 6MT
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Lol I was just gonna tell you to check that. I spent a whole afternoon once checking every fuse and connection in the car because that plug hadnt snapped in tight... We all do dumb things


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