Uggh!!! check engine code P0171 just showed up on my NSX. I went to autozone and the code reader read it. It says:
Fuel system too lean. (cyilnder one denotes bank one)
Probable cause:
1. Large vacuum leak
2. fuel system concern
3. Ignition system concern
4. MAF sensor faulty
5. HO2S/AF sensor fault
I stopped driving the car. I am concerned about this. This car has a Comptech Supercharger. I have never had this code before. Car seems to run fine. On the dyno, last I checked all AFR's were solid and slightly to the rich side.
There is an aftermarket exahust. GT1 headers, cat bypass pipes, ARC titanium muffler. I am using the cheater 02 plugs that pull the secondary 02 sensor back a bit, but that's not the primaries.
Does anyone know what this is? It was a warm day today, I would think it should be running on the rich side. It smells rich, not lean. I have no AFR gauge.
Thanks guys.
Fuel system too lean. (cyilnder one denotes bank one)
Probable cause:
1. Large vacuum leak
2. fuel system concern
3. Ignition system concern
4. MAF sensor faulty
5. HO2S/AF sensor fault
I stopped driving the car. I am concerned about this. This car has a Comptech Supercharger. I have never had this code before. Car seems to run fine. On the dyno, last I checked all AFR's were solid and slightly to the rich side.
There is an aftermarket exahust. GT1 headers, cat bypass pipes, ARC titanium muffler. I am using the cheater 02 plugs that pull the secondary 02 sensor back a bit, but that's not the primaries.
Does anyone know what this is? It was a warm day today, I would think it should be running on the rich side. It smells rich, not lean. I have no AFR gauge.
Thanks guys.
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