Runs rough and hesitates when cold
#1
Runs rough and hesitates when cold
I’ve got a 2002 with the F23A1 and I’ve been having an issue when I start the car no matter how long it has been sitting it will run rough at idle and if I try to drive it will sputter at about 2500rpm but all issues go away once it warms up and comes out of open loop. I’ve got codes for 02 sensor voltage low and a fuel mixture lean. I don’t believe it has to do with the 02 sensors as it’s only during warm up when it’s disregarded. I also don’t think it’s egr related because it all seems to do with temperature the colder it is outside the worse it will run until warm and if it was egr wouldn’t it just be and no matter the temp?
#2
Re: Runs rough and hesitates when cold
In the mean time until you find the answer, try running some Sea Foam through the fuel system and see if it is just a dirty cold start issue.
#3
Re: Runs rough and hesitates when cold
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