Lean Codes after Haltech Install
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Joined: Oct 2004
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From: Manassas Park VA
St. Jude Donor '07-'08,-'13-'14, '16-'17
Lean Codes after Haltech Install
I put a Halltech stinger on my 04 CE Coupe about 300 miles ago. I keep popping lean codes about every other time I drive it...
The MAF still has the stock screen...only other mod is a catback with an X-pipe.
I checked all the brackest to make sure everything was nice and tight and no air was getting in anywhere...
Is there anything short of getting a tune that will stop the lean situation?
Tks
Peace
Willfulone
The MAF still has the stock screen...only other mod is a catback with an X-pipe.
I checked all the brackest to make sure everything was nice and tight and no air was getting in anywhere...
Is there anything short of getting a tune that will stop the lean situation?
Tks
Peace
Willfulone
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Melting Slicks
Joined: Jun 2004
Posts: 3,439
Likes: 6
From: Newark, DE
St. Jude Donor '06
You've driven the car plenty for the PCM to have adjusted to the increased airflow by now. I know you said you checked everything for tightness, but there really can't be any other cause for that code than unmetered air entering somewhere downstream of the MAF. I have to wonder if you have a crack or leak somewhere. 
Try this...
Get a pump applicator (like an empty bottle of detailing spray) with windshield washer fluid and spray it onto the body and seams of the air bridge and coupler (while the engine is running). This should confirm or eliminate the possibility of air entering there. If you do find a leak, and a small amount of liquid gets sucked in, it should be harmless - windshield washer fluid is primarily a mix of methanol and distilled water.
GL!
Try this...
Get a pump applicator (like an empty bottle of detailing spray) with windshield washer fluid and spray it onto the body and seams of the air bridge and coupler (while the engine is running). This should confirm or eliminate the possibility of air entering there. If you do find a leak, and a small amount of liquid gets sucked in, it should be harmless - windshield washer fluid is primarily a mix of methanol and distilled water.
GL!
