rb25det wont crank...need help

Discuss the RB20, RB25 and RB26 series engines.
Valley
Posts: 289
Joined: Sat Apr 02, 2005 5:37 pm
Car: 00 celica gt-s 89 240sx hatch

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tried anything new, did it work?


breaker_bo1
Posts: 30
Joined: Wed Sep 07, 2005 11:33 am
Car: Nissan 240sx

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nope, gonna check my injectors might be clogged

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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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here's a fun one for ya. Have you checked your ecu for codes? Have you even reset the ecu. What position is the cal set screw on the ecu set to. And finally. Your cas. Is it centered. Best way to actually tell if it's your fuel is to spray some starter fluid in it and hopefully it'll catch from there. If not then you'll know for sure it's a fuel problem instead of an ignition or sensor problem.

Darius
Posts: 4820
Joined: Sun Mar 02, 2003 9:48 am
Car: RB25DET S14 - 665 WHP (SOLD)
Location: Chicagoland

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Could also be an eccs or ign relay or ecu problem. Sounds a little like what mine was doing except you had more firing going on than mine. Try temporarily running a jumper wire from the orange wire on the ignition relay to ground and see if that gets it to fire. If not, keep looking. If so, start saving for a PFC like me

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JonPowell
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Joined: Tue Feb 18, 2003 2:06 pm
Car: Cars, Music, My family
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His ECU is fine, unless something happened to it. It came from a running car that upgraded to Power FC. I sold it to him.

His orange wire is fine if his spark plugs are firing. The coils are getting power that way.

I almost have my test box 100% done so if you want to send it back, I am ready...instead of a bunch of wires & jumpers all over my living room floor to test it, I can plug it into my test box.

Let me know!

breaker_bo1
Posts: 30
Joined: Wed Sep 07, 2005 11:33 am
Car: Nissan 240sx

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The rb25det ecu that JonPowell sold me doesn't even have a cal set screw, and my CAS is centered.

breaker_bo1
Posts: 30
Joined: Wed Sep 07, 2005 11:33 am
Car: Nissan 240sx

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Its alright, I found this guy in Greensboro, NC; pretty close to where I live, he messes with all kinds of car, theres alot of 240sx swaps that goes to him, I think he owns a r34 skyline too, but he said to me he could fix whatever the problem is, plus all my friends goes to him to get there car tuned and fix.

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JonPowell
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Joined: Tue Feb 18, 2003 2:06 pm
Car: Cars, Music, My family
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S2 ECU's dont have that screw, they dont have LED's inside either, they flash codes through the MIL when you jumper 2 of the CONSULT pins...
Modified by JonPowell at 8:44 PM 4/19/2006


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