P0171 in 3 miles
#1
P0171 in 3 miles
I pull the car from storage after month and a half,stupid 100 inches of snow..shut off eng light with 171 code,go to get haircut 3 miles away..come out and light is back on,already looked for vaccum leak,new plugs wires,o2 sensor maf...not GM ...what could set it of so fast...
#4
Did you change both O2 sensors? Was the car outside in the snow above the level of the gas cap? Even a small amount of water in the fuel can cause a lean exhaust to be indicated. The PCM will clear the MIL after the third consecutive passing trip. The history DTC won't clear until there has been 40 consecutive warm-up cycles.
#6
I think I found it,the vacuum that was supposed to be connected to map sensor was not connected...well it didn't seem like it,found plug off,so far I drove to get gas and few other places and it didn't come on...gross fingers.