A little help with a check engine light.

Hey all,

I just had all 4 O2 sensors changed, as they were throwing codes. When I got the truck home, I cleaned the throttle body, as I have 140k Kim's on the truck. I unplugged the throttle control harness, removed the throttle body, and put everything back together. I have a new OEM MAD that I bought a couple months ago, as well. Only after doing all this, did I disconnect the battery, so it could re-learn the idle.

Now, however, the truck is throwing MAD codes, random C-series codes and the idle still hasn't learned the new idle. To top it off, it's been -30*C here for 2 weeks.

Anyone have any ideas?

Thanks.

 

I'd rather see happy codes lol.

It really helps if you post the codes.

 

What he said

 

Sorry, of course you're right.
Codes: p0102, c2030

 

Both are related to MAF sensor/air leak.

 

The C2030 code is likely related to the new sensors you put on, seems like it's usually caused by a leak right before the #1 O2 sensor

http://www.diagnostictrouble.com/obdii-code/c2030

The P0102 is usually caused by a vacuum leak before the intake manifold, so that's likely from your throttle body being reassembled either incorrectly or maybe you forgot to attach one of the vacuum lines? Check for leaks too

http://www.diagnostictrouble.com/obdii-code/P0102

 

Thanks guys. I'll look into it more when it's not -30*C here.

*edit* Not too cold here today. Snugged up sensor #1, and tightened up the bolts on tbe TB some more. Idled it for a bit, which used to throw codes, no codes. Here's hoping it continues. Thanks eon_blue.