Lean codes with intake
Thread Starter
Melting Slicks
Joined: Mar 2001
Posts: 2,233
Likes: 5
Lean codes with intake
I have a 04Z. A friend with same car got a code on the DIC from a Blackwing intake. It was a lean code. My question: Will doing a computer relearn procedure make this go away ? If not, then has anyone found a way, short of a $500 tune and a few hour trip. to resolve this issue? Thanks, Skip 
Race Director
Joined: Jun 2004
Posts: 19,459
Likes: 48
From: Schaumburg IL
CI 7-8-9-11 Veteran
St. Jude Donor '06-'10, '13
maybe you have done this already, but I would go back and double check all your connections, you could have something loose where between the MAF/airbridge or filter...I have heard of this happening with the Halltech Stinger on the Z06 too..it might also have to do with the fact that the Z06 Maf does not have a screen like the regular C5's do, and the computer can't adjust to the extra flow.... I am not sure this could be corrected with a relearn procedure.
I am sure plenty others will chime in here on this.
Good luck
I am sure plenty others will chime in here on this.
Good luck
Burning Brakes
Joined: Oct 2000
Posts: 876
Likes: 23
From: Prescott Valley, AZ
Originally Posted by skip89
I have a 04Z. A friend with same car got a code on the DIC from a Blackwing intake. It was a lean code. My question: Will doing a computer relearn procedure make this go away ? If not, then has anyone found a way, short of a $500 tune and a few hour trip. to resolve this issue? Thanks, Skip
mark
Race Director
Joined: Dec 2000
Posts: 19,304
Likes: 85
From: San Diego CA
I spoke to Andy at A&A a short while ago and he told me that this situation is not uncommon on late model Z06s with aftermarket intakes. A dyno tune will, in all likelyhood, help (eliminate the codes).
Thread Starter
Melting Slicks
Joined: Mar 2001
Posts: 2,233
Likes: 5
I am sure a dyno tune will solve the lean code and make the Z run a lot better. The problem is I have no good shops even close to my area. The other thing is, to put a couple hundred dollar intake on it needs a $400 - $500 dyno tune. Not sure it is cost effective. Now, if I want to add a cam to all this, it starts getting more worth while. Carlisle this weekend, hope to talk with available tuners.
Race Director
Joined: Dec 2000
Posts: 19,304
Likes: 85
From: San Diego CA
Originally Posted by skip89
I am sure a dyno tune will solve the lean code and make the Z run a lot better. The problem is I have no good shops even close to my area. The other thing is, to put a couple hundred dollar intake on it needs a $400 - $500 dyno tune. Not sure it is cost effective. Now, if I want to add a cam to all this, it starts getting more worth while. Carlisle this weekend, hope to talk with available tuners.
Figure $600-$700 for 25 RWHP......not bad at all! Let us know what you hear.
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