Hello! Regarding: 1981 GMC Sierra Grande
Need to pass emissions testing in CO. Failure due to not having an Air Injection System. In CO, if it was not standard on the vehicle then its not required. Did an Air Injection System come standard on the 1981 Sierra Grande? Anyone having any information that might help would be greatly appreciated!
Thanks
Need to pass emissions testing in CO. Failure due to not having an Air Injection System. In CO, if it was not standard on the vehicle then its not required. Did an Air Injection System come standard on the 1981 Sierra Grande? Anyone having any information that might help would be greatly appreciated!
Thanks