My 5.0 started misfires for about 2 minutes then the air fuel ratio sticks at 14.0 then check engine light comes on.
2013 g5 check engine light comes on code p064d an p1646 help
- Thread starter bigboy373
- Start date
Need help the car has a dyno tune and long tube headers but the problem was there
Before but now with the headers it happens way more often. Tuck car back to tuner
and they said the tune was good but the car was running rich on bank 1 and when the
air fuel ratio sticks at 14.0 the car is in a closed loop. The dealer has no idea.
Wild guess, but do you have extenders on your 02 sensor harnesses? If so, get rid of them.
Said he was having the problem before too...
Yes I was but not as often my procal pulled 2 codes p064d
and p1646. I have ben doing some research and I found out
That when the afr gauge sticks at 14 the computer is n
open loop. Will this hurt the car if I drive it. New car only
20,000 miles. Any suggestions will be greatly appreciated.
Also what r these codes and what do they mean. And no I do
not have extenders
and p1646. I have ben doing some research and I found out
That when the afr gauge sticks at 14 the computer is n
open loop. Will this hurt the car if I drive it. New car only
20,000 miles. Any suggestions will be greatly appreciated.
Also what r these codes and what do they mean. And no I do
not have extenders
Last edited:
That's it. Jms chips is my tuner. They told me it was do to an exhaust leak an that was the problem so payed $1300 4 some new ssw headers $55 4 new gaskets and $1250 4 them to install them. 30 min later same problem. Pull codes same codes po64d an p1646. $2500 dollars an more headaches. Do yall think its the pcm I am out of throw away money. scared of tearing up my engine neehelp
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