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I/M Monitors
Sorry for the novel. I have this Yukon in the shop that needs to have an emission test. Customer put a purge solenoid on and cleared the codes, then took it for an emission test and failed for O2 and EVAP monitors not ready. It had P0171 & 174 (both banks lea... Login to read more.
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| Engine | 6.0 L |
| Trans | 4-speed Automatic (Electronic) |
Vehicle Data
2003 GMC Yukon Denali 6.0L
| Engine | 6.0 L |
| Trans | 4-speed Automatic (Electronic) |
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