Chevy, Gm code po121-- Cleaning Throttle Body , Code po622- Alternator charging problem

Hello doston ye gmc car h ismay ye do code arahe h po121, po622 ye kis karan se ate h ot iskay ane se apki car me kya dikkat hogi puri jankari h is video me kripya video pura dekay video achi lage to please saport my channel
Gmc car missfir problem
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Eny enquiry please maile.
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