Originally Posted by pcordes1979
when things went crazy the O2 pegged at 1V and the fuel trim went to +66.
Interesting case. Usually when the O2 reading is high (rich) the fuel trim goes negative as the system tries to respond by pulling out fuel. A question would be: is the O2 responding to an issue or is it
the issue? The original code you posted P2195 is a lean code.
2005 ZX4 SE 2.0L Duratec 5-speed 191K miles
2002 Wagon SE 2.0L Zetec 5-speed 131K miles
Last edited by Paul1958; 05-02-2019 at 12:20 PM.