tom steele

i just wanted to see if anyone has delt with this code before and what fixed it i am thinking it is the o2 sensors but just want to confirm with the engine mod gurus i have a rmm supercharger kit could this cause the that code

speedaddic

iTrader: (10)

funny...Im dealing with the same thing right now with my rmm sc...just started yesterday. My coolant level was pretty low, I read that could do it as well. I'm going to do fuel injector cleaning tomorrow. If it was 02, you'd get other codes besides the p0172

dsouth

iTrader: (4)

I had the same code. It's your MAF not getting correct reading due to your fuel system running rich.

Clean your MAF, run some fuel injector cleaner and reset your ecu. This should resolve it. If it doesn't replace your plugs. Mine hasn't come back since.

Oh, and make sure you only run premium gas.

tom steele

yea i did run 89 for a tank or two and i need a new set of plugs but my maf is clean just cleaned it and just but in the injector cleaner and i ordered new o2 sensors see were that gets me

GS4_Fiend

iTrader: (22)

This codes shows a rich condition. The reason why u have a rich condition is because you got a supercharger. The computer is used to the stock fuel trim. So now, since you got extra air, it will require extra fuel. So that's why the CEL is on. I think the SC you got should come with some type of ECU so it can compensate out the fuel trim. Like for example, if you get an SRT Intake, it comes with an ECU to compensate out the fuel trim. Hope that helps.

tom steele

yea i know it running rich i have to put in my apexi neo so i can tune it. also have to put in my x pipe and new cats so i can put in my plx air/fuel meter. i think once i get that in and tune it to the right air/fuel ratio i think ill be fine. was just wandering if anybody else had a simple fix. guess ill just have to live with it till i get the neo in.