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Testing Direct Injection High Pressure fuel pump - Runs Rich
We have this 2012 Terrain with a rich code. Fuel trims are running around -30% and my tech said he seen -50%. Disconnecting the MAF makes zero difference. Alcohol content shows 9% and disconnecting the purge makes no difference. Looks like we are focusing on t... Login to read more. 
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| VIN | 2GKFLXEKXC |
| Engine | 2.4 L |
| Trans | 6-speed Automatic (Electronic) |
Vehicle Data
2012 GMC Terrain SLT 2.4L
| VIN | 2GKFLXEKXC |
| Engine | 2.4 L |
| Trans | 6-speed Automatic (Electronic) |
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