lord of the dumb. flame away.....

Discuss the RB20, RB25 and RB26 series engines.
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driftnslide1
Posts: 203
Joined: Tue Jan 16, 2007 5:32 pm
Car: 92' 240sx coupe/ 87' toyota supra turbo

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ok i just realized how dumb i really am. ive been trying to figure out why i had not spark for days now and i just realized that the O2 sensor and the power plug for the coils both share the same type plug and i had them pluged into each other . im probably going to RB pergatory for this one. silly thing is i still have no firing. could i have messed somthing up?


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Carl H
Posts: 5985
Joined: Mon Aug 04, 2003 4:09 am
Car: 1995 Nissan 240SX SE RB30DET

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very possible that you have fried the ecu...

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driftnslide1
Posts: 203
Joined: Tue Jan 16, 2007 5:32 pm
Car: 92' 240sx coupe/ 87' toyota supra turbo

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that would be an unfortunate circumstance. please offer another, less destructive option. lol. any other possabilitys?

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driftnslide1
Posts: 203
Joined: Tue Jan 16, 2007 5:32 pm
Car: 92' 240sx coupe/ 87' toyota supra turbo

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if i did. will all my gauges and lights still work. what about the diagnostic light on the ecu? how do i know?

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DriftingisLame
Posts: 974
Joined: Wed Feb 02, 2005 1:41 pm
Car: '91 240sx coupe, rb20det

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My maf wire was hangin out in my engine bay right after I finished the swap. Fell on to the turbine housing and melted, grounded out, and fried my ECU, car just cranked and cranked with no spark or fuel. Gauges/lights worked, thats controlled by something else.

I pulled the cover off the ECU case and found a black spot where a connection was broken, dabbed a little solder on it and it worked again.

If your ECU fried like mine did, then its pretty easy to find, the black spot was obvious.

Good luck, although that may not be your problem.

-Max

User avatar
driftnslide1
Posts: 203
Joined: Tue Jan 16, 2007 5:32 pm
Car: 92' 240sx coupe/ 87' toyota supra turbo

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did yout check engine light still throw codes when you check it if it is in fact fried?

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DriftingisLame
Posts: 974
Joined: Wed Feb 02, 2005 1:41 pm
Car: '91 240sx coupe, rb20det

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I didnt check for codes, must have forgot. Maybe I did, it was a really long time ago.

Sorry


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