I am having a presistant engine line on issue. I have taken the car to AutoZone and got a P3501. The printout indicates possible defective ignition coil #1, connector, wirings (12v and the server) or PCM. I have swapped coil and spark plug with cylinder #6 and continue to get the P3501 error.
I took the vehicle to the dealer #1 who confirmed PCM and wiring are good and it must be the coil. I indicated that I have already swapped the coil and spark plug. They still said it must coil #1. They reset the codes. I purchased and new coil #1 from dealer and replaced it. I drove for a couple of days and then got the engine light and same code again!
I took the vehicle to dealer #2 who confirmed all is Ok (Wiring PCM and Coil). They reset the codes. Drove for a couple of days and got the engine light on again!
The engine light is usually triggered when starting the vehicle and it is very cold outside
What are some other possibilities? What would you recommend doing next?
Monday, February 3rd, 2014 AT 4:37 AM