Quote:
Originally Posted by adnoid
Funny - I just started to get these codes as well. 2002 3.0 with 202,000+ miles.
Last week I had a brief stumble in the morning, followed by the SES light on the drive to work. Other than the stumble the car drove just fine, with one significant difference - much BETTER gas mileage! I usually get around 19, I suddenly was getting 23+. When I was able to read the codes I got:
P0171 (System too lean, Bank 1)
P0174 (System too lean, Bank 2)
P0300 (Random/multiple misfire detected)
P1347 (Misfire cylinder #3 with fuel cutoff)
P1348 (Misfire cylinder #4 during start)
P1350 (Misfire cylinder #5 during start)
I noted them, cleared them & left the reader connected. The next day the SES returned with all the above codes and these:
P0302 (Cylinder #2 misfire)
P1083 (Fuel control mixture lean, Bank 1)
P1085 (Fuel control mixture lean, Bank 2)
P1342 (Misfire cylinder #1 during start)
I took it to my indie repair shop (good guys) and they replaced the pre-cat O2 sensors and the intake boot which had a crack in it. I could discern no difference in behavior of the car before or after the repair, but right after I picked it up my fuel consumption was back where I thought it should be. Then the next day I got the SES again with just P0171 and P0174, along with the reduced fuel consumption, albeit only up to about 21 MPG. I reset the codes again, and although the light has not come on again I can see P0171 and P0174 are pending.
What's interesting is that this began to happen immediately after I filled up at a station I don't usually go to, but I was low and running an unplanned errand. It was a Miristar and the pump said the fuel could contain up to 10% Ethanol - has anyone else experienced any such connection?
Still, the car runs great - fires right up without hesitation, not lacking power, smooth, and if not for the lights/codes and the increased mileage I'd have no idea anything was going on!
|
Hi adnoid! How's your X doing nowadays? I'm been having the same problem for the past couple of weeks. That SES light keeps coming back after gassing up.
My X's been going in and out of the shop for resetting and clearing fault readings. This of course after having replaced O2 sensors and checking for leaks (so far none found). It's still in the shop and more checks are being done inlcuding cleaning of injectors.
I'd really like to hear the latest on you guys who have come up with some solutions to this problem.
09-09-2009, 09:40 PM
Threaded Mode
