Is ECU red light suppose to be on or off while turned over?

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timmyk
Posts: 25
Joined: Wed Apr 01, 2009 5:31 am
Car: s14 96 240sx and 89 s13 240sx

Post

Maybe someone can check for me, I'm trying to diagnose my car, it runs great and all but I had a rough start the other night and I'm checking over everything to prevent future issues.

So when the car is turned over is the ecu light suppose to be on [red] or off?

Because currently mine is off when turned over but it runs great. I'm kind of stumped on this and maybe some of you guys can chime in?

Thanks.


wangan_cruiser
Posts: 4
Joined: Sun Mar 26, 2006 5:34 pm
Car: 1991 nissan 240sx fastback rip 2009
1993 nissan 240sx jdm aero conversion sr20det
1990 nissan 240sx
1996 nissan pathfinder se 4x4
2001 nissan pathfinder le 4x4

Post

It supposed to be lit up when your car is running.

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S13FASTBACKSR
Posts: 2177
Joined: Sun Nov 27, 2005 10:28 am
Car: '92 Fastback SR powered

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woah hold up wangan...on? no it supposed to be off when the engine is running. On means bad ecu.


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