Hi,
Getting car ready for MOT after a load of work. MGTF has been off the road for a year.
I have had a check engine light appear a couple of times whilst idling. Earased but coming back.
Code is P0170, nothing else.
Freeze frame data is weird.
Load% 0.0
ETC(0c) 136
SHRT FT1 ( -100 )
LONGFT1 ( -100 )
MAP(Kpa) 0
RPM 0
VSS 0
My understanding is that the freeze frame data is when the error was logged. Reading this, the car was warmed up but the the engine was off (no revs) and was hugely rich with the fuel trim trying to compensate.
Anybody make sense of this?
I used a Autel Maxiscan MS309. Cheap one the previous owner left in the car for me.
Fairly sure the airbox was back on when this code popped up.
One gallon of at least year old petrol in tank. Will be running down and putting fresh in for MOT (if there is any left after the current panic buying).
Previous owner replaced cat and one o2 sensor (doesn't say which one) three years ago. When i changed spark plugs - normal colour.
Car runs fine, idle steady, temps all good.
Cheers,
Iain.