quick question bout fuel pressure .....

Discuss the RB20, RB25 and RB26 series engines.
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BoostFab
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that's one nasty harness, i would be embarrassed to send something like that to my customer


preston240sx
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I'll give it all a try and take a look but like i said not much of a wiring master.. but im greatful for your help

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DJButton
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Wow, that picture is scary, guess I'm spoiled after Carl's re-wiring.

Acecool
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You dont have the extra REQUIRED wire spliced into the orange wire in between the 2 orange relays.. without that, the car will not start..

preston240sx
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Joined: Mon Oct 04, 2004 9:53 pm
Car: Nissan 240SX S13

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well were would this wirie go? u got a picture or diagram say how to do this ? can u be more specific on the wires that need to be combined thx

mott6904
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Car: rb20 big turbo big cams s13, 97 kouki, turbo audi a4,turbo busa

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what extra wire is needed those are the grounds coming from the ecu to turn on the relay

preston240sx
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Car: Nissan 240SX S13

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so when u say the orange relays you mean the ones in the fuse box ? if not where are these located ? thx guys im almost done gettting this hog together here's a update pic

almost done!!!
Modified by preston240sx at 8:12 PM 1/19/2008

mott6904
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there are no orange relays just blue and green if i recall. Someone said that from the picture you posted that he could tell that there was supposed to be a wire that connect to the orange wires that go the the realys. Ive never seen this seeing how the computer uses the orange wire to turn on the relay but i could be wrong. Id say that if you have both relays plugged in then make sure that when the ignition is in the on postions that the eccs and fule pump relay wires are ground( refer to website i gave you for fsm), and make sure that all of your major sensors and and injectors have power and ground.

preston240sx
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Joined: Mon Oct 04, 2004 9:53 pm
Car: Nissan 240SX S13

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i spilce a ground wire to those wires atill nothing .. so im thinking maybe i got a bum ecu ?


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