mil light on
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Elder User
Joined: Jul 2006
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From: Lockport, NY
mil light on
i have a MIL light on with codes P0171 and P0174. truck info below.
other than an ocassional hesitation from a stop no other symptoms. when this happens if i stop and wiggle the fuel filter once it runs fine all day. the next morning or after a long park it will do the same thing.
my first thought ( being a year old) was replace fuel filter. i am getting like 39-40psi on fuel gage.
i know the codes and looked on obdII web site for discription. vacuum lines look good, no gas smell (except after adding fuel) sprayed vaccum lines with starting fluid while running , no increase at all with idle.
just asking what my next step should be. as i will have another look over tomorrow.
i intend to check out:
vacuum line again
IAC
EGR ( anything here to really look for)
PCV
but other than those i will be lostas to where to go next
other than an ocassional hesitation from a stop no other symptoms. when this happens if i stop and wiggle the fuel filter once it runs fine all day. the next morning or after a long park it will do the same thing.
my first thought ( being a year old) was replace fuel filter. i am getting like 39-40psi on fuel gage.
i know the codes and looked on obdII web site for discription. vacuum lines look good, no gas smell (except after adding fuel) sprayed vaccum lines with starting fluid while running , no increase at all with idle.
just asking what my next step should be. as i will have another look over tomorrow.
i intend to check out:
vacuum line again
IAC
EGR ( anything here to really look for)
PCV
but other than those i will be lostas to where to go next
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