the ses light was on and i went to autozone, they scanned it.

there was only one code

P0172

help. thanks
tyler

 

Fuel Trim System Rich Bank 1 ... which would be your o2 sensors i beleive.. not sure if thats the front or rears

 

so is a sensor bad? do i need a replacement? and if i dont mess with it will it affect performance?

 

Check the fuel pressure regulator. They rupture diaphragms all the time. Pull the vacuum line from the regulator and check for raw fuel. The regulator is on the drivers' side fuel rail about half back on a stock manifold setup. Just a little further back on a radix. But I see you have side mount blower so it should be in the stock position. All it takes is removing the outer clip and pull it out to replace it. DON'T FORGET the little o-ring on the very end of the regulator. Good luck............

 

Try this out....
The powertrain control module (PCM) controls the air/fuel metering system in order to provide the best possible combination of driveability, fuel economy, and emission control. Fuel delivery is controlled differently during Open and Closed Loop. During Open Loop the PCM determines fuel delivery based on sensor signals without oxygen sensor (O2S) input. During Closed Loop, the oxygen sensor inputs are added and used by the PCM to calculate short and long term fuel trim fuel delivery adjustments. If the O2S indicate a lean condition, the fuel trim values will be above 0 percent. If the O2S indicate a rich condition, the fuel trim values will be below 0 percent. Short term fuel trim values change rapidly in response to the heated oxygen sensor (HO2S) voltage signals. Long term fuel trim makes coarse adjustments in order to maintain an air/fuel ratio of 14.7:1. The fuel trim diagnostic will conduct a test to determine if a rich failure actually exists, or if excessive vapor from the evaporative emission (EVAP) canister is causing a rich condition. If the PCM detects an excessively rich condition, DTC P0172 or P0175 sets