cel code P1128?
#1
cel code P1128?
Can anyone help me with this? I put in the decoder and it states P1128. I am not familiar with this code. I was surfing the internet and it said that the code would be MAP low emission? Can anyone help me with this problem and what I could do to resolve the cel from continuing to come on. It seems like it comes on after I drive about 20 miles. I have 2000 A4 1.8Q.
#2
RE: cel code P1128?
The MAF sensor could be bad. But the P1128 is triggered when the fuel mixture is so lean the O2 sensors are constantly in the rich position. I would look at the O2 sensors first. Then check the fuel injectors, fuel pump pressure and volume. Replacing the fuel filter is a good idea also. Vacuum leaks could cause the lean condition as well. I would make sure there are no vacuum leaks and that the oil cap and dipstick are firmly seated.
I typed the code into google and this came up on a vw/audi site, good luck
I typed the code into google and this came up on a vw/audi site, good luck
Thread
Thread Starter
Forum
Replies
Last Post