Hi, I put a cold-air intake on my 1997 Bonneville SSE without a box around it and ran it for 2 weeks ,then I put a gutted stock air box on it and drove for about 50 miles and the check engine light came on . The code from AutoZone is PO113 .The PCM has determined that the input from the intake air temp sensor is higher than expected for the current operating conditions.Probable causes: 1. Check connector and wiring ( OK )2. Sensor open or shortened-replace sensor. What do you think ?

Did you put the accordian back on and leave the sensor in it?

Sounds like the sensor that was on the accordion pipe isn't plugged in. Check that, it may have come out.

Dan, you were right it did come out. I took the acordian pipe off and have a smooth chrome pipe on it .The light went off. Thanks Guys, Bruce

The easy fixes are the best kinds. Any other problems just ask.

What'* the differencew between service and check engine lights?

Just a different name for the same thing. A lot of members call it a SES light, service engine soon

Yeah but I have a light for both and my service one is on now??? I haven't had it chkd yet but th car runs fine.

If you have two different lights then the service light I would guess is things like oil, coolant, brake fluid, stuff like that. Something like my wifes brake light in her van. It kept coming on, turned out to be low brake fluid. Added a little and haven't seen a light sense.

you might just need a oil change or something like that