Check engine light at high RPM's

BlueTuner · 12-26-2009, 02:57 AM

My check engine light goes on when i hit about 5500 RPM's. I noticed it when i was trying to get my 0-60. It stays on about 5-10 secs. not very long. Any suggestions on what it might be.

cre · 12-26-2009, 04:34 AM

Any stored diagnostics codes? http://www.cygnusx1.net/Supra/TechTi...ror_codes.aspx

25,26,31,34 and 52 are the first ones that occur to me given when they're happening.... but it's really just a guess.

Bill UK · 12-26-2009, 05:38 PM

Sounds like fuel cutout. What boost are you reading? (Your profile states GTE)

BlueTuner · 12-26-2009, 05:46 PM

I dont know about the codes since its been about a week, and im running about 11psi of boost.

cre · 12-26-2009, 08:37 PM

There are a few possibilities... fuel cut at 11psi (is this per the stock gauge?) would indicate a leak in the intake after the turbo or an AFM error; It feels similar to hitting the rev limiter. Check codes first.

12-26-2009, 02:57 AM	#1
BlueTuner Intake Join Date: Nov 2009 Location: Englewood, Ohio Posts: 41	Check engine light at high RPM's My check engine light goes on when i hit about 5500 RPM's. I noticed it when i was trying to get my 0-60. It stays on about 5-10 secs. not very long. Any suggestions on what it might be.

12-26-2009, 04:34 AM	#2
cre Toyota Racing Development Join Date: Apr 2007 Posts: 5,038	Any stored diagnostics codes? http://www.cygnusx1.net/Supra/TechTi...ror_codes.aspx 25,26,31,34 and 52 are the first ones that occur to me given when they're happening.... but it's really just a guess. __________________ If something breaks or you need to contact a member of the administration please post HERE. Unless it's a private or administration matter please post it on the forum. It benefits no one else if car related questions aren't posted for future users and takes away from the time I'm able to spend helping on the rest of the forum. If you're so inclined I'm always more than happy to accept tips via PayPal. Tip Jar --->

12-26-2009, 08:37 PM	#5
cre Toyota Racing Development Join Date: Apr 2007 Posts: 5,038	There are a few possibilities... fuel cut at 11psi (is this per the stock gauge?) would indicate a leak in the intake after the turbo or an AFM error; It feels similar to hitting the rev limiter. Check codes first. __________________ If something breaks or you need to contact a member of the administration please post HERE. Unless it's a private or administration matter please post it on the forum. It benefits no one else if car related questions aren't posted for future users and takes away from the time I'm able to spend helping on the rest of the forum. If you're so inclined I'm always more than happy to accept tips via PayPal. Tip Jar --->

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12-26-2009, 05:38 PM	#3
Bill UK AEM EMS Join Date: Jul 2006 Location: UK Posts: 891	Sounds like fuel cutout. What boost are you reading? (Your profile states GTE)

12-26-2009, 05:46 PM	#4
BlueTuner Intake Join Date: Nov 2009 Location: Englewood, Ohio Posts: 41	I dont know about the codes since its been about a week, and im running about 11psi of boost.