Hey guys, looking for some guidance on this one. Replaced engine wiring and harnesses due to rats chewing my wires up. Through this the ECM got shorted out and I had to replace it with a used ECM from the same make model and year. After finally finding the part. The dealer installed and told me I’m getting a high idle code which I never had to begin with. They are telling me I need to replace both throttle bodies. They said they ran the engine relearn and te code P1502 is still showing. I have a feeling they are full of crap.

 

Are you sure the pins and connectors going to the throttles are in good shape? If you now have a circuit code you didn't before, i'd start there. Check the harness at both ends (TB and PCM) for any pin tension issues or damage, before you just replace 2 throttle bodies. If the code is side specific you could swap them and see if it follows, I don't know if the description points to one throttle or just in general.