CEL P0171, P0174, P043E, P043F, P2401, P2402, P2419

I had a check engine for a little while now and recently pulled up these codes. I know the P043E, P043F, P2401, P2402, and P2419 are possibly linked to the evap can by the gas tank but the only reference for that was from an '06.

It's a 2011 ACLB 4wd 4.0v6 ~130k miles. It used to have a supercharger but the previous owner pulled that and stuck it on his FJ.

 

I would clear the codes and drive to see what comes back. It's possible that since the lights been on they were something from the supercharger/as he removed it but then didn't clear codes after fixing the issue... Just to get a fresh set of data to start analyzing.

 

We cleared them and the light came back on. Will check today to see if it is the same codes or not.

 

sounds like it will need a canister

 

Is this a part I can find easily or a stealership deal? Anyone have pics of what I am looking for?

 

I don't know much about 2nd gens and supercharger setups but isn't the ECU on 2nd gens permanently flashed for the supercharger? I thought you'd have to get a new ECU if you wanted to remove the supercharger and go back to stock, or does the s/c flash still work with an N/A motor?

One or two of those codes (the P0171 and P0174) are usually related to a vacuum leak, makes me think he probably didn't connect or didn't properly connect a vacuum line somewhere when going back to stock. Or one of the vacuum lines is cracked.

 

I'm pretty sure those 2 codes are a vacuum leak as well. He mentioned something like that as far as the ECU went. Residual tuning from the SC

 

I've had those codes as well...twice actually. About 5 years apart. Both on cold mornings. Cleared them and they came back when it was still cold. Cleared them on a warm day and they did not come back.