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post #1 of 21 (permalink) Old 04-29-2013, 02:01 AM Thread Starter
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Check Engine Light Codes

I have a 2005 cobalt 2.2 base with a cold air intake that gives a p0171 code. Lately Ive been getting a p0106 code and Im wondering if its a related issue now that it is warmer outside. Could it be from installing a header that has a small exhaust leak?
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post #2 of 21 (permalink) Old 04-29-2013, 05:29 AM
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Small exhaust leak could give you the lean code (P0171) but not the MAP code (P0106). That one is usually caused by a leak between "MAF" sensor and "MAP" sensor. Somewhere at one of the seams of your "CAI" most likely.

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post #3 of 21 (permalink) Old 04-29-2013, 11:22 AM Thread Starter
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Quote:
Originally Posted by Coby7 View Post
Small exhaust leak could give you the lean code (P0171) but not the MAP code (P0106). That one is usually caused by a leak between "MAF" sensor and "MAP" sensor. Somewhere at one of the seams of your "CAI" most likely.
There are no leaks. Should I just replace the MAP sensor?
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post #4 of 21 (permalink) Old 04-29-2013, 11:34 AM
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There are no leaks. Should I just replace the MAP sensor?
For the Map DTC, check your vacuum lines first before replacing any part. You do need Manifold Absolute Pressure in conjunction with a MAF as well. May just be a corroded hose.

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post #5 of 21 (permalink) Old 04-29-2013, 11:43 AM
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Should I just replace the MAP sensor?
MAP must be good it gave you a code for a leak.

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post #6 of 21 (permalink) Old 04-29-2013, 12:38 PM Thread Starter
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I havnt found any leaks.
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post #7 of 21 (permalink) Old 04-29-2013, 12:44 PM
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To eliminate your CAI as the trouble, you could always throw your stock stuff back on, clear the code and see if it comes back.

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post #8 of 21 (permalink) Old 04-29-2013, 01:01 PM
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my lean code cleared when i disconnected my battery for 15 minutes, give that a try

---------- Post added at 04:01 PM ---------- Previous post was at 04:01 PM ----------

it cleared a few codes that didnt come back.

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post #9 of 21 (permalink) Old 04-29-2013, 06:30 PM Thread Starter
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My concern is the p0106 not p0171. P0171 will be fixed with a tune. As far as the p0106 there aren't any leaks so is it safe to say to just replace the MAP sensor?
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post #10 of 21 (permalink) Old 04-29-2013, 07:16 PM
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You didn't find any leaks doesn't mean there isn't one. How did you check for leaks? Propane?

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Last edited by Coby7; 04-29-2013 at 07:19 PM.
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