Search Results for ‘p0174’

General & fault code questions from a new car owner: smog, car reg., and p0171, p0300 [moved to B5]

I've had those codes for several months now and not been able to find the problem, I replaced N80 twice. the car is giving low mileage per gallon, hesitates when at low speed, sometimes I get a code for cylinder 2 (misfiring). Every time I fill up the tank or at least put half tank of gas the...

Here is the dilemma: both codes are normally caused by a vacuum leak. If there is a vacuum leak, then both codes should show up, right? I only get P0171. Here is background: wife’s 2002 Passat 4Motion, 2.8L V6, 175K on the clock. Purchased new. I do all my own maintenance. In October 2008...

Engine: V6 Mileage: 117k Synthetic oil, Removed Intake plastic cover and after market intake K&N 69-9756TFK. Replaced timing belt, serpentine belt and water pump. The car runs and idles great, I cleared the codes with obd2 plug in and traveled around 200 miles on the interstate, as soon as I...

Engine: V6 Mileage: 117k Synthetic oil, Removed Intake plastic cover and after market intake K&N 69-9756TFK. Replaced timing belt, serpentine belt and water pump. The car runs and idles great, I cleared the codes with obd2 plug in and traveled around 200 miles on the interstate, as soon as I...

Engine: V6 Mileage: 117k Synthetic oil, Removed Intake plastic cover and after market intake K&N 69-9756TFK. Replaced timing belt, serpentine belt and water pump. The car runs and idles great, I cleared the codes with obd2 plug in and traveled around 200 miles on the interstate, as soon as I...

Hi all! I've been doing a bunch of reading on here about the System too lean messages. Most of the issues seem to happen on the 1.8T, but I've got the v6. I keep reading that when you have both of those codes, that it is either MAF, 02 sensors or PCV leak. I haven't looked at the o2...

Hello all, I have had an intermittent CEL code of P0171 bank 1 too lean on my V6 2.8L. It would go on for a week and then off. Light had been out but came back on.I had a mechanic go through all the vacuum tubing, and he found no leaks. Went to Autozone and got P0171 as well as P0174 (bank 2 too...

Our V6 Passat just experienced CEL yesterday. Seems to drive fine. Went to Autozone. Code is P0174, which is: System too lean bank 2 Possible causes are: Faulty heated oxygen sensor Large vacuum leak Faulty MAF sensor Car has around 105,000 miles. If it seems to be driving fine, has great...

I used to maintain a ’63 Beetle, a ’64 Notchback (Canadian model), and a ’65 split-window Bus. I “retired” from doing my own work in 1991 when I bought my first new car, a ’90 VW Fox. I now drive a 2002 4Motion 2.8 V6 Wagon, bought new in September 2001. The wagon’s MIL light came on a...

Is it MAF or are there other possible causes? 2003, 65k mi. TIA