p0171

Hi all, Been having this issue for a few months now and I feel its getting worse and its annoying as well. I have a 2002 ford explorer sport trac with the 4.0 with 187000 miles. The issue I'm having is that after I drive my truck even for short periods at a time, park it, shut it off and go do...

My trusty '96 LongRanger started thowing P0171/174 codes recently and I was finding the truck a little down on power and harder to get good mileage. Now back in my younger days, my engines alway had a "lean code" because I drove Mopar slant sixes and 2.3 Vauxhalls -but that was before the days...

Hello, I recently purchased a 99 Ranger 3.0 Flex Fuel with about 184,000 miles. When I purchased it it had a fairly bad misfire on cylinder, it was noticeable at idle and driving. I have since replace the plugs and wires, ignition coil and the injector on cylinder 3, all helped a little and the...

(note: Also posted this in the 3.0 V6 forum but I'm at a loss and need the truck to job hunt soon so it's kinda' urgent... sorry in advance if posting it here is bad) Long time lurker and I've found advice here that has helped me in the past, but I'm completely out of ideas and need some help...

Long time lurker and I've found advice here that has helped me in the past, but I'm completely out of ideas and need some help. Forewarning, this will be a little long as I want to say exactly what I've done so far and the results. I've posted a few other places but so far I've just been pushed...

Hello everyone, new to this forum. I searched a bit but couldn't find anything that addressed my issue directly. 1997 Ranger with 2.3, 2wd, 5 speed manual, everything is stock, no aftermarket pieces. Bought the truck and had an intermittent misfire code on cyl 2. Finally tore into the engine...

OK, strap in, because this may be a long one.... This 4.0L OHV (166K miles) will throw a P0171 code during a regular, in town drive, but will never throw this code during highway driving. Also worth mentioning, the MPG is steadily going down the crapper. She used to throw both a P0171 and P0174...

My check engine light is on. I've been working on this for quite some time and have learned a few things. I'm using and "Auto X-Ray" scan tool. I got P0125, coolant temp low P0153, O2 sensor circuit slow response and P0171 system lean I changed the O2 sensor in bank 2, sensor 1 and new...