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check engine light??????

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Old Apr 2, 2006 | 02:04 PM
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Default check engine light??????

I have a check engine light for P0108. which I believe to be high voltage at the map sensor....If anyone has any info that would be great.

1. can I still drive it without damage?
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Old Apr 2, 2006 | 02:28 PM
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Any recent mods?
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Old Apr 2, 2006 | 03:24 PM
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Default mods

Stereo system was modified, cags unit installed, but not too recent.
z-51 sway bars as well. I do not believe there is any correlation however. thanks for replying............alex

I did remove the engine cover and pulled out the sensor to have a look. the rubber grommet that seals the sensor had sand on it. other than that my technical skills are limited....

Last edited by aliix; Apr 2, 2006 at 03:30 PM.
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Old Apr 2, 2006 | 03:25 PM
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You are correct, no correlation with the suspension mods
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Old Apr 2, 2006 | 11:31 PM
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any ideas to what causes this, before a trip to the dealership???/
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Old Apr 2, 2006 | 11:36 PM
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The reason I asked about the mods is probably 80% of the time it goes hand and hand with somehow having a sensor messed with. I don't have my manuals handy to know what that particular code goes to. Be sure to report back your resolution.
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Old Apr 2, 2006 | 11:55 PM
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Default code/....

the code p0108:

Its a DTC code for: MANIFOLD ABSOLUTE PRESSURE (MAP)

SENSOR CIRCUIT HIGH VOLATGE.

I was just unsure as to what causes high voltage at the sensor. I know it is there to measure vacum on the throttle body, other than that I am clueless.

basically I don't want the dealership saying its the radio system altering voltage or the cags unit on the tranny......ect.
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Old Apr 3, 2006 | 12:47 AM
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Is that the sensor you messed with?

I don't think they will give you a hard time about that sensor and the fact of your stereo. They have nothing in common. In fact, your stereo is would be controlled by the BCM, the sensor by the ECM.
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Old Apr 3, 2006 | 07:25 AM
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Originally Posted by aliix
the code p0108:

Its a DTC code for: MANIFOLD ABSOLUTE PRESSURE (MAP)

SENSOR CIRCUIT HIGH VOLATGE.

I was just unsure as to what causes high voltage at the sensor. I know it is there to measure vacum on the throttle body, other than that I am clueless.

basically I don't want the dealership saying its the radio system altering voltage or the cags unit on the tranny......ect.
i would pull it and clean it. then get a scanner and clear the code. if you don't clear the code it will take a bit before it self clears.

high voltage can mean dirty sensor, more voltage is required to read it and thus the high voltage warning.
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Old Apr 3, 2006 | 08:24 PM
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Here is a listing for all LS2 DTCs, and here is the troubleshooting procedure for P0108 on a 2004 LS1 (which should be mostly the same).

HTH!
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Old Apr 4, 2006 | 01:28 AM
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Originally Posted by Mr. Lucky
Here is a listing for all LS2 DTCs, and here is the troubleshooting procedure for P0108 on a 2004 LS1 (which should be mostly the same).

HTH!
thank you..............much appreciated.....
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