i bought a car with a cai already installed and now my car is throwing p171 and ive been researching it and i want to clean my maf sensor because alot of people are saying the cause is a dirty maf can you tell me were its located on the cai and how i can get to it. I KNOW IM A NOOB BUT IM LEARNING

 

its next to the filter i think

 

Access is through the driver side wheel well.
Best to remove the wheel but if your good in confined spaces the front flap of the fender liner can be unscrewed and folded down.
Its easier with the wheel removed and the whole fender liner and the wheel turned left before removal.

 

no you dont have to remove the wheel remove the headlight much easier you can try cleaning the maf also see how dirty the airfilter is

 

It's on the tube right before the filter, I had this same problem with mine and it was because the MAF was dirty, sounds like a finger print or something. If it was something to bad it wouldn't idle properly, so if the car is just throwing that lean code, I'd get it reset and not worry about it.

Oh, and it's easier to take the wheel off and the plastic piece behind it to get to it than to take off the whole headlight, IMO

 

well call me lazy but my floor jack is heavy as hell lol

 

ok everyone thanks ive also noticed that its only having this problem when it rains i had this problem for a little bit after it rains but like an hour after if must have dried up so i think im going to clean the maf, replace the filter,and get a hydro shield anyone know the one that will fit the fujita f5 for the cobalt ss sc
my car is also starting to idle weird it moves up and down but its hard to see but i can hear my exhaust

 

Ok Has Someone Had This Problem And Solved It Im Thinking Injectors Or Hydro Shield Im Going To Clean The Maf And I Can Hear The Fluctuation In My Exhaust But I See A Very Slight Idle Movement I Recently Cleaned My Throttle Body.

 

Clean the MAF, that should fix the idle jump. if it doesn't then try unpluging the battery and let it drain, and that should reset it and it should be fine. that's what I've had to do before and it usually works at least for a while. Doesn't sound like injectors would be the problem to me. I could be wrong though.