MAF Issues
Thread Starter
Cruising
Joined: Sep 2011
Posts: 10
Likes: 0
From: Yuba City CA
MAF Issues
I have done enough testing and reading to find out why I keep getting lean bank 1 & 2 codes. If I have my Blackwing air filter on I get codes but If I put the stock air box back on they go away.
They guy who owned the car before me took the screen out of the MAF and I belive this to be what my issue is. Where can I get another one or maybe somthing better?
01 C-5 6 speed coupe
They guy who owned the car before me took the screen out of the MAF and I belive this to be what my issue is. Where can I get another one or maybe somthing better?
01 C-5 6 speed coupe
Instructor
Joined: Jun 2011
Posts: 201
Likes: 0
From: Virginia
Just get a mail order tune from one of the vendors on here. I think you're better off without the screen but i may be wrong. Someone sells a honeycomb screen that creates less disturbance in the air flow or something like that. I myself need to just get around to pulling my PCM and sending it off to ECS.
Thread Starter
Cruising
Joined: Sep 2011
Posts: 10
Likes: 0
From: Yuba City CA
Race Director
Joined: Jan 2006
Posts: 10,554
Likes: 33
From: Not on either liberal coast.
That's it. Z06 cars do not have the screen in MAF from the factory. I also installed a Blackwing (and "Ice Box" enclosure for true cold air) on my car when I first got it. I also got intermittent lean bank codes. I think it had to do with the 5,200 ft altitude. A 300 mile round trip for a $300 tune wasn't in my plans.
I modified the oem Z06 intake cover for more air intake. It sounded the same and performed the same as the Blackwing, but I got no lean bank codes.
Recently I installed a CALLAWAY Honker (true cold air) and was concerned about the lean bank codes occurring again as this intake flows more air than the Blackwing and the MAF is moved up next to the throttle body as part of its design.
I installed the HALLTECH screen at the same time. In over 500 miles of mountain driving, no codes. It does work.
I modified the oem Z06 intake cover for more air intake. It sounded the same and performed the same as the Blackwing, but I got no lean bank codes.
Recently I installed a CALLAWAY Honker (true cold air) and was concerned about the lean bank codes occurring again as this intake flows more air than the Blackwing and the MAF is moved up next to the throttle body as part of its design.
I installed the HALLTECH screen at the same time. In over 500 miles of mountain driving, no codes. It does work.
