J
jalapino4
Guest
What is the different between code p0401 "EGR flow insufficient" and code p1491 "manufacture control: auxiliary emission controls"?
I heard that both those codes are related to EGR. But i had already clean the carbon in the 2 ports on the engine and the EGR valve. I used carb, rag and flat screwdriver and try to get it clean as best as i can. Screw everything back on and code p0401 "EGR flow insuffiecient" went away except code p1491. How come that code didn't went away? Need help asap. thanks for your help
I heard that both those codes are related to EGR. But i had already clean the carbon in the 2 ports on the engine and the EGR valve. I used carb, rag and flat screwdriver and try to get it clean as best as i can. Screw everything back on and code p0401 "EGR flow insuffiecient" went away except code p1491. How come that code didn't went away? Need help asap. thanks for your help