fuel cut=check engine light

BoostMonger

PUSH IT TO THE LIMIT
Sep 5, 2011
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Shadows of Utah
all i did was a slow roll on 4th gear pull, was about 5800 rpm, and hit fuel cut, RRRRRRRRRRRR BAH BAH triggered engine light -____- but only lasted for 3-4 seconds, its never happened before so im wondering what i did haha

has anyone else experienced this?

okthxbai bed time <3
 

mkiiichip

New Member
Sep 10, 2007
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What boost are you running? What are you using to tune the 550's?

What you are explaining is just normal old fuel cut. Pull codes and see for yourself.
 

BoostMonger

PUSH IT TO THE LIMIT
Sep 5, 2011
880
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Shadows of Utah
it was the first time i noticed it this, which is strange cuz my eyes are always looking at the cluster, 550ccs, 2jz fpr and stock 1jz ecu.
 

destrux

Active Member
May 19, 2010
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PA
Speed cut? Are you on a JDM ecu? Pink speed sensor wire still connected to the ECU? 5800RPM in 4th is right where the 118mph speed cut kicks in.

If that's the case you can disconnect the pink wire if you have a supra ECU and it will disable the cut. Soarer ECU's use the speed signal for idle control so some people end up with a low idle if they try that. I did.