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Forced Induction Turbochargers and Superchargers..Got Boost?

Have any FI'ers had any kind of throttle response issues?

Old Oct 5, 2009 | 05:44 PM
  #21  
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does this happen all the time or just intermittently
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Old Oct 5, 2009 | 06:19 PM
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Intermittently. Like I said, it used to do it every time I took the car out. But I drove it today and nothing happened. Very weird problem.
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Old Oct 5, 2009 | 06:29 PM
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does it feel like a super laggy turbo response or is it still unresponsive in 1st gear
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Old Oct 5, 2009 | 06:31 PM
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That voltage correlation code is one for a bad TB. Let us know if it comes back.
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Old Oct 5, 2009 | 06:34 PM
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Originally Posted by Sharif@Forged
That voltage correlation code is one for a bad TB. Let us know if it comes back.
Now I'm very confused as I replaced the TB the other day and the problem seems to have persisted. Maybe time for an ECU reflash?
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Old Oct 5, 2009 | 06:37 PM
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Originally Posted by JAM3Z
Now I'm very confused as I replaced the TB the other day and the problem seems to have persisted. Maybe time for an ECU reflash?
One last thing, is to do a firmware and Throttle firmware reflash of your UTEC. Maybe it has a slight corruption that is causing the dead pedal.

Call me before you do this, since you'll need to save your map and parameters to your laptop first since a firmware update wipes out existing maps.

Or just send me your UTEC and I will do it for you.
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Old Oct 6, 2009 | 06:16 AM
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I get the dead pedals and voltage code (P1122/1126) on occasional warm starts. It happens most often when the headlights are on.

I replaced the UTEC and TB and it persists. The UTEC is running the latest software. I don't know what else to do.
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Old Oct 6, 2009 | 06:53 AM
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there is a Throttlecontrole.mot file comes with the Utec file

u should download it to the utec in the B processor (DBW Processor), or u can send it to forge like sharif said much better.

Last edited by SmallTuner; Oct 6, 2009 at 06:55 AM.
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Old Oct 6, 2009 | 07:06 AM
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Originally Posted by Sharif@Forged
One last thing, is to do a firmware and Throttle firmware reflash of your UTEC. Maybe it has a slight corruption that is causing the dead pedal.

Call me before you do this, since you'll need to save your map and parameters to your laptop first since a firmware update wipes out existing maps.

Or just send me your UTEC and I will do it for you.
pm sent.

James I can help you if you need this done but since you have a DD shipping it may not be a bad idea. Either way, I can help you uninstall the UTEC as well.
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Old Oct 6, 2009 | 07:42 AM
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Originally Posted by Cux350z
pm sent.

James I can help you if you need this done but since you have a DD shipping it may not be a bad idea. Either way, I can help you uninstall the UTEC as well.
Thanks chris. This problem is being put on hold for now as I have crap to do for school all week and I'll be out of town all weekend. I'll definitely be in touch when I get back though.


Sharif, could the anamoly with the UTEC actually be tripping the two codes I'm getting?
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Old Oct 6, 2009 | 05:34 PM
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Bad pedal position sensor?
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Old Oct 7, 2009 | 06:08 AM
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What codes are you getting? Are they the same as mine? (posted above)
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Old Oct 7, 2009 | 06:11 AM
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I'm getting P2122 and P2138. Something about voltage and position correlation.
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Old Oct 7, 2009 | 03:52 PM
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Ok, I took the car out today, and despite the successful drive the other day, the throttle problem reappeared. I NEED to get this resolved...

Any other ideas fellas?
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Old Oct 9, 2009 | 06:56 AM
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Originally Posted by doug
rev the RPMS up to 5000 rpms while driving.. watch the RPM drop.. if it pauses at 2500rpms or so.. its your camshaft pos sensor
I was messing around with the car just now, and it pauses at about 1500 rpm. This must mean the cam position sensor is actually failing.
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Old Oct 9, 2009 | 06:59 AM
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Send it to Sharif......
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Old Oct 9, 2009 | 07:02 AM
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Originally Posted by Jay'Z
Send it to Sharif......
I'd like to resolve this myself, plus I really don't have time to be shooting back and forth to Marietta at the moment.
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Old Oct 9, 2009 | 11:28 AM
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The p2138 is the same problem I have had, replaced the TB and the APP sensor. Continued to have the prob... If this is a software issue then i'd surely like to find out or test the firmware option to see if that fixes it.
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Old Oct 9, 2009 | 12:34 PM
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Originally Posted by JAM3Z
I'd like to resolve this myself, plus I really don't have time to be shooting back and forth to Marietta at the moment.
James lmk if you want to remove the UTEC tomorrow. Get the details from sharif and we can take care of it.
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Old Oct 9, 2009 | 01:23 PM
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Originally Posted by JAM3Z
I was messing around with the car just now, and it pauses at about 1500 rpm. This must mean the cam position sensor is actually failing.
could be.. hopefully you get a related code.. i would hate for you to buy it and its not it
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