P0171 & P0171 cleared with new fuel filter, but then P0301 came in
Title pretty much explains it.
Yesterday...out of the blue....with 1/2 tank,car lost power....it was still running, but when I pushed on gas pedal.....nothing was there. This all started after my duty day.....so...I drove in on Wednesday > and then drove it at 1800 for my tour. Car then sat till 1400 on Thursday. Driving home (about 30 miles) later is when indications started.
Change fuel filter today > car would only crank over for a bit....but I finally got it started and drove it down the street. Stalled out on me....but seemed to improve a bit on the way home. I did get the SES light to come in.....then it cleared on it's own.
Parked the car > yellow oil light came in. I have never had to add oil to my car and check it religiously.
Checked oil > 3/4 qt low.
Read code > P0301 cylinder 1 misfire.
From: http://www.obd-codes.com/p0300
Indications:
the engine may be harder to start > Yup
the engine may stumble / stumble, and/or hesitate > Yup....bigtime.
other symptoms may also be present
Additionally:
Causes
A code P0300 may mean that one or more of the following has happened:
Faulty spark plugs or wires > Did plugs about 35k miles ago....and did them again 8/25 as corrective action
Faulty coil (pack)
Faulty oxygen sensor(s) > I changed these out...maybe a month ago.
Faulty fuel injector(s)
Burned exhaust valve
Faulty catalytic converter(s)
Stuck/blocked EGR valve / passages
Faulty camshaft position sensor > Never changed
Defective computer
