1997 V70 T5 Auto
Hi all I have been playing around trying to clear an old evap fault code i have had for ages and was the only code. (EFI-541 cannister purge valve) i did manage to fix it i had the wrong plug plugged into the solenoid lol more than likely when tje new rad was put in). Any way with that fault being active my STFT (Short term fuel trim) has been stuck at -25 for along time.
Now since I fixed the evap fault I get a new fault code (EFI-231 long term fuel trim part load) could this be caused by the ecu needing to relearn its fuel trims as it has has its short terms messed up for a long period?
Or a quick google search of that code points to a vacuum leak on most threads
I was just curious if any one has any input on this as I have a look at the vacuum lines a few are old and I have replaced a few also but I didn't any thing to suspicious?
Thanks for any help or info