1998 GMC Sonoma Q&A
1998 GMC Sonoma Question: Keep getting p0172 code on longer trips
I have changed the o2 sensor and the tps that was acting up but I still get the code on longer trips. I have clean the throttle body with spray and don't believe there is a MAF sensor on this motor. The truck runs great but the fuel economy is lower than it should be. Starting to scratch my head! - tomh4020
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