Q: EVAP 1
The computer told me it was EVAP 1 I replaced the EVAP 1 and the computer still says EVAP 1 is bad and I replaced the back end EVAP also but I didn't replaced the gas cap do you think that could be the reason for the engine light being on and the truck is riding hard also that's way I said I was going to replaced the ECU or the ECM
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