What I am trying to find out is what DTC codes or problems will trip this message from appearing every 30 - 60 minutes of driving?

It's annoying. I am just looking for the list of problems that would make that pop up. Gotta troubleshoot it one by one... The Tech 2 is NOT showing any stored DTC's.

http://www.dieselplace.com/forum/garageimage.php?do=full&p=113881&d=1277608029

do u have an aftermarket intake or filter

Do you run some sort of fuel treatment or additive?

Happened on my 09-dealer said it was a throttle sensor cable - rubbed through - said there was a tsb on it. Dealer fixed - never happened since.

check your air filter. wix brand will tend to throw a MAF code. which will reduce the engine power. Just a thought.

check your air filter. wix brand will tend to throw a MAF code. which will reduce the engine power. Just a thought.


Why would a Wix brand air filter cause a MAF code?

Most likely a MAF code, damn LMM's seem to be really picky when it comes to intakes. The tune you'r running might have the code set as not reported although it is still throwing it, and therefore it won't show when you scan for codes.

Most likely a MAF code, damn LMM's seem to be really picky when it comes to intakes. The tune you'r running might have the code set as not reported although it is still throwing it, and therefore it won't show when you scan for codes.

thats what mine did when i had a K&N drop in filter in it. put stock filter in and it went away. Later switched to a S&B intake and have had NO issues.

Why would a Wix brand air filter cause a MAF code?

GM says they flow too much air which throws the MAF readings off. I've seen it quite a few times.

GM says they flow too much air which throws the MAF readings off. I've seen it quite a few times.
I have experenced this myself. I ran wix filter and every since they redesigned them early last year I kept throwing MAF codes. Watching the MAF readings with the quad it says 43-45 mg of air is coming through and codes arent long to follow with limp mode. If I put in a Donaldson (only have one more left) the rading drops to 39-40 mg of air and no codes. The new Wix no doubt cause my to throw MAF codes.

I'm currently looking for a filter that flows about the same as the old Donaldson filters.

It apparently was a bad MAF. GOt a replacement and it failed a week later. The latest has been good :)

Where did you get that gauge? Looks awesome.

Thats an Aqua Edition by us speedo.