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High idle after throttle body replacemtent
Truck came in for a illuminated check engine light, with dtc p0121 stored. Had a bad TPS, installed new GM throttle body performed throttle relearn as per AllData. Can not get it to learn how to idle was not having this problem previous to throttle repair, jus... Login to read more. 
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| Engine | 6.2 L |
| Trans | 6-speed Automatic (Electronic) |
Vehicle Data
2007 GMC Yukon XL 1500 Denali 6.2L
| Engine | 6.2 L |
| Trans | 6-speed Automatic (Electronic) |
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