1994 Crown Vic with the 4.6L engine and about 55,000 miles. Bought it
a few months ago.
Recently it's been behaving strangely.
When I first start it up, until it warms up, I can barely accelerate
at all. If I floor it, the engine stutters ... no backfires ... just a
whir, like it wants to go faster, but can't.
After it warms up, it behaves better, but I still can't floor it and
get the acceleration I used to have. I have to kind of ease it up ...
It was so strange, I thought it was the fuel filter.
I've replaced the fuel filter, spark plugs and oil/filters I also put
some injector cleaner in it ... no change ... I put a Computer on the
car and got the following error codes:
176 Lack of heated oxygen sensor switches indicates lean bank 2
181 fuel system at rich adaptive limit at part throttle system lean
186 injector pulsewidth higher than expected
189 fuel system at rich adaptive limit at part throttle system lean
634 manual lever position voltage higher or lower than expected
632 (I think it's 632, hard to read) Trans Control switch circuit did
not change states during KOER
On some advice, I disconnected the vacuum line to the EGR valve and
blocked it off ... no change.
Should I turn to the fuel injectors next?
Thanks for any help anyone can give me.