PCM Diagnostics & Tuning HP Tuners | Holley | Diablo

dbw pedal question

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Old Jul 17, 2012 | 03:23 PM
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i dont really know how to put this but now i have my motor all running i have a problem with the pedal.if i turn the key to just the on position everything works and i can press the pedal and hear my throttle opening and closeing(working) then when i go and fire it up i try give it a little gas and theres nothing at all no mattter wat i do. any help would be appreciated thanks
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Old Jul 17, 2012 | 06:05 PM
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nobody?
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Old Jul 17, 2012 | 06:12 PM
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How about explaining what parts you have...
Kinda difficult to t/s with zero info...
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Old Jul 17, 2012 | 06:15 PM
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wat all info do i need to post? its a 04 6.0 from truck dbw new standalone harness computer tac and pedal also

Last edited by burbalanche; Jul 17, 2012 at 06:19 PM. Reason: more info
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Old Jul 17, 2012 | 07:20 PM
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Any CEL's? Have any been turned off or set to MIL on second error?
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Old Jul 18, 2012 | 08:13 AM
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That im not sure of.i sent my computer tomy tuner also n he we nt through it quick with everything i have done to it so i was able to start n run it to check everything.
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Old Jul 18, 2012 | 03:35 PM
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Make sure the TAC module stays powered during cranking
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Old Jul 19, 2012 | 11:35 AM
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How can i test this?
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Old Jul 20, 2012 | 11:28 AM
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Put a volt meter on the power wire at the TAC module while cranking the motor over make sure you have voltage
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Old Aug 27, 2012 | 08:52 PM
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still trying to figure out this damn problem.i have voltage but cant seem to figure it out.anyone got ideas?
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Old Aug 28, 2012 | 07:46 AM
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See post #5....
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Old Aug 28, 2012 | 08:28 AM
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If it starts but no pedal, that can be a problem with the accelerator pedal position sensor or incorrect wiring between the TAC and pedal.
Confirm the your tac/pedal harness is correct. If that's ok, you might just try a new APP sensor.
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Old Aug 29, 2012 | 02:38 AM
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I suspect I have asimillar problem with the DBW wiring.

Does anyone have the 2008 GTO dbw pinouts?
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Old Aug 29, 2012 | 04:21 PM
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no such animal as a 08 gto
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Old Aug 30, 2012 | 09:39 PM
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ok ill check that stuff out once..and the acc. pedal pos. sensor is that somthin u can just replace on it or would it be buying a new pedal? its an 04 thanks
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Old Aug 31, 2012 | 09:00 AM
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Is there any way to teat if the sensor is bad before i just go buy one?
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Old Aug 31, 2012 | 09:48 AM
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Probly a code missed putting it into limp mode.
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Old Aug 31, 2012 | 11:25 AM
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Get it scanned for codes so that you know which direction to head
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Old Aug 31, 2012 | 03:41 PM
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ok so i put a scanner on it quick and it read 4 codes.p0068 came twice and p0135 and po650.any one have any ideas or help would be much appreciated thanks. i have not had it tuned yet either still trying to get this figured out so i can get it done.
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Old Sep 1, 2012 | 04:07 PM
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anyone?
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