# HELP: 02 GMC Sonoma

**URL:** <https://forums.speedlife.net/t/help-02-gmc-sonoma/463>\
**Category:** NYSpeed Automotive\
**Created:** [June 29, 2005, 1:00pm UTC](https://forums.speedlife.net/t/help-02-gmc-sonoma/463 "2005-06-29T13:00:17Z")\
**Posts on this page:** 6\
**Page:** 1

<div class="post-metadata">

**Author:** ![2TurboZ](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/2turboz/32/7577_2.png) [@2TurboZ](https://forums.speedlife.net/u/2TurboZ)\
**Post date:** [June 29, 2005, 1:00pm UTC](https://forums.speedlife.net/t/help-02-gmc-sonoma/463/1 "2005-06-29T13:00:17Z")

</div>

4cyl. 2.2 Engine…Check engine light came on at 28k…runs fine…took it to cleveland no troubles. Got the code checked out and it says a malfunction of my Air Injection System. Anyone have a clue what that all entales? I have never heard of such a thing.

Thanks

---

<div class="post-metadata">

**Author:** ![Adictd2b00st](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/adictd2b00st/32/7625_2.png) [@Adictd2b00st](https://forums.speedlife.net/u/Adictd2b00st)\
**Post date:** [June 29, 2005, 1:24pm UTC](https://forums.speedlife.net/t/help-02-gmc-sonoma/463/2 "2005-06-29T13:24:19Z")

</div>

thats easy kyle, its cause its a gm 😉

---

<div class="post-metadata">

**Author:** ![soopa7fly](https://avatars.discourse-cdn.com/v4/letter/s/c77e96/32.png) [@soopa7fly](https://forums.speedlife.net/u/soopa7fly)\
**Post date:** [June 29, 2005, 1:35pm UTC](https://forums.speedlife.net/t/help-02-gmc-sonoma/463/3 "2005-06-29T13:35:10Z")

</div>

that code represents a few different things. when i rang up that code on my jimmy, it was some sort of air pump for emissions control.

---

<div class="post-metadata">

**Author:** ![STEALTTH](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/stealtth/32/7582_2.png) [@STEALTTH](https://forums.speedlife.net/u/STEALTTH)\
**Post date:** [June 29, 2005, 1:38pm UTC](https://forums.speedlife.net/t/help-02-gmc-sonoma/463/4 "2005-06-29T13:38:42Z")

</div>

> [@Adictd2b00st](#):
>
> thats easy kyle, its cause its a gm 😉

yeah mine just threw a check engine light…wonder why it did that :wiggle:

---

<div class="post-metadata">

**Author:** ![Z24Challenge](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/z24challenge/32/7231_2.png) [@Z24Challenge](https://forums.speedlife.net/u/Z24Challenge)\
**Post date:** [June 29, 2005, 3:25pm UTC](https://forums.speedlife.net/t/help-02-gmc-sonoma/463/5 "2005-06-29T15:25:16Z")

</div>

I had a similar problem on my 99 S10 2.2. CEL came on around 38K, went off, on, then off again all within 1 or 2 days time…

I was told it was some kind of timer to bring it in for some emissions check or some BS.

Needless to say I did nothing about it, and didn’t have a single problem with the truck after that.

---

<div class="post-metadata">

**Author:** ![funkylemons](https://avatars.discourse-cdn.com/v4/letter/f/3ec8ea/32.png) [@funkylemons](https://forums.speedlife.net/u/funkylemons)\
**Post date:** [July 1, 2005, 11:00pm UTC](https://forums.speedlife.net/t/help-02-gmc-sonoma/463/6 "2005-07-01T23:00:08Z")

</div>

I’d try just deleting it and see if it pops up again first…