bzettler83

So I know what these codes mean , of course I am running lean but why... Recently I noticed the light so I got under the hood to check things out and I noticed my mass air flow sensor was lose and air was getting in around the sensor. I figured this was the reason for the code because the car had no idea how much air was flowing through the engine because the sensor was pretty much bypassed. So I tightened everything up and sure enough the code went away. But about 10 minuted later light came back on. I checked and everything looks good but I am still throwing the codes... .What else can I do to track down my problem. I reset the codes and they come right back on about 3-5 minutes of driving....

Whats going on and what can I do. Thanks

Chemdawg99

What kind of mods do you have?

bzettler83

LG Long Tubes ORY, B & B exhaust and haltech intake.....programmed out the rear 02's and have not had a problem until lately