Stock Mass Air Flow Sensor
Thread Starter
Race Director
Joined: Aug 2006
Posts: 12,585
Likes: 13
From: Colorado
St. Jude Donor '16 thru '26
Stock Mass Air Flow Sensor
Is the stock mass air flow sensor on a 2004 Z06 susposed to have a screen on it?
My car is at the dealer for a A/C problem, the service manager says the tech. noticed a code in the ecm.
He says the tech. check into it and found that someone removed the screen.
I told him that the car runs pefect and I have never had any warning lights on the dash.
I have had the car for 6 weeks and put over 1400 miles on it. You would think if there was a problem the engine light would have come on.
Also I pulled codes before I took it in today to make sure the HVAC codes were still there. They were the only ones shown.
The service manager said that the Tech 2 scaner can pull codes that the dashboard display cant.
Thanks
My car is at the dealer for a A/C problem, the service manager says the tech. noticed a code in the ecm.
He says the tech. check into it and found that someone removed the screen.
I told him that the car runs pefect and I have never had any warning lights on the dash.
I have had the car for 6 weeks and put over 1400 miles on it. You would think if there was a problem the engine light would have come on.
Also I pulled codes before I took it in today to make sure the HVAC codes were still there. They were the only ones shown.
The service manager said that the Tech 2 scaner can pull codes that the dashboard display cant.
Thanks
Le Mans Master
Joined: Aug 2002
Posts: 8,472
Likes: 38
From: Houston TX
St. Jude Donor '11
I would say the dealer is full of it on several accounts. A. the '04 Z has not MAF screen. B. Any alterations to the MAF would have no bearing on the A/C. C. I can't say with 100% certainty but I don't think there are any "hidden" DTC's that do not show up on the DIC. There are plenty of DTC's that will not illuminate the check engine light, but they still show up in the DIC when you do the Options/Fuel diagnostics.
Ask him what the DTC number was.
Ask him what the DTC number was.
Last edited by 5 Liter Eater; Oct 2, 2006 at 04:00 PM.
Le Mans Master
Joined: Aug 2002
Posts: 8,472
Likes: 38
From: Houston TX
St. Jude Donor '11
Furthermore, the only DTC's I know of in reference to the MAF are P0101 (MAF Performance), P0102 (MAF Low Frequency) and P0103 (MAF High Frequency), all of which will illuminate the check engine light.
Thread Starter
Race Director
Joined: Aug 2006
Posts: 12,585
Likes: 13
From: Colorado
St. Jude Donor '16 thru '26
I'M going to call the dealer back. To clairfy, they are not blaming the A/C problem on the MAF sensor. But they are saying it set a code and needs to be replaced. He says warranty wont cover it because someone removed the screen.
Team Owner
Joined: May 2004
Posts: 26,345
Likes: 232
From: SoCal
Originally Posted by RAMMAN
I'M going to call the dealer back. To clairfy, they are not blaming the A/C problem on the MAF sensor. But they are saying it set a code and needs to be replaced. He says warranty wont cover it because someone removed the screen.
Time to take your car to a different dealer..........
DH
Melting Slicks
Joined: Mar 2005
Posts: 2,252
Likes: 181
From: NE OH
Originally Posted by 5 Liter Eater
I can't say with 100% certainty but I don't think there are any "hidden" DTC's that do not show up on the DIC.
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Le Mans Master
Joined: Aug 2002
Posts: 8,472
Likes: 38
From: Houston TX
St. Jude Donor '11
Originally Posted by muncie21
There's lots of codes that won't be displayed in the DIC, and can be read by the TechII. Just an FYI.
You mean that won't throw a CEL or won't be displayed on the DIC diagnostics?
Melting Slicks
Joined: Mar 2005
Posts: 2,252
Likes: 181
From: NE OH
Originally Posted by 5 Liter Eater
You mean that won't throw a CEL or won't be displayed on the DIC diagnostics?
Module to module com timeouts and pending codes, just to name a couple.Just to be clear, for the most part, the codes in the DIC are the important ones.
Last edited by muncie21; Oct 2, 2006 at 05:52 PM.
Thread Starter
Race Director
Joined: Aug 2006
Posts: 12,585
Likes: 13
From: Colorado
St. Jude Donor '16 thru '26
Thanks for the quick responses. I called the service manager back and he apologized, said he didn’t know that the Z06 used a different MAF sensor.
I sure it’s not going to be an issue. As the shop that has it is considered by many to be the premier Corvette dealer in Colorado. And they are known for honesty and good customer service.
He said they were still checking out the HVAC. I am pretty sure it’s the left side actuator that is bad. As I spent some time diagnosing it before I took it in.
I’ll let you know what happens.
I sure it’s not going to be an issue. As the shop that has it is considered by many to be the premier Corvette dealer in Colorado. And they are known for honesty and good customer service.
He said they were still checking out the HVAC. I am pretty sure it’s the left side actuator that is bad. As I spent some time diagnosing it before I took it in.
I’ll let you know what happens.
Tech Contributor
Joined: Dec 1999
Posts: 32,910
Likes: 2,402
From: Anthony TX
CI 6,7,8,9,11 Vet
St. Jude Donor '08
Your service guy is a BOZO!!
Z06 MAFs do not have screens!!!! Call GM Custermor Service Assistance and ask for help!!! Ask to talk to a distric rep! Make their lack of knowledge PAINFUL! Take yor car to a more qualified dealer!!!!!!!!
Bill C
Z06 MAFs do not have screens!!!! Call GM Custermor Service Assistance and ask for help!!! Ask to talk to a distric rep! Make their lack of knowledge PAINFUL! Take yor car to a more qualified dealer!!!!!!!! Bill C
Thread Starter
Race Director
Joined: Aug 2006
Posts: 12,585
Likes: 13
From: Colorado
St. Jude Donor '16 thru '26
Just wanted to update that the dealer is taking care of this, ordered new MAF sensor. Replaced left air door actuator to repair a/c problem.
All along they were very professional and courteous, they just flat weren’t aware that the Z06 didn’t have a screen on the MAF sensor.
Going back next week when the MAF sensor comes in, my car stills runs perfect as is.
All in all I am very happy with the service, and I certainly wish I could say I was never wrong about anything before.
All along they were very professional and courteous, they just flat weren’t aware that the Z06 didn’t have a screen on the MAF sensor.
Going back next week when the MAF sensor comes in, my car stills runs perfect as is.
All in all I am very happy with the service, and I certainly wish I could say I was never wrong about anything before.
Melting Slicks
Joined: May 2000
Posts: 2,498
Likes: 4
From: Brentwood TN
Originally Posted by RAMMAN
Just wanted to update that the dealer is taking care of this, ordered new MAF sensor. Replaced left air door actuator to repair a/c problem.
All along they were very professional and courteous, they just flat weren’t aware that the Z06 didn’t have a screen on the MAF sensor.
Going back next week when the MAF sensor comes in, my car stills runs perfect as is.
All in all I am very happy with the service, and I certainly wish I could say I was never wrong about anything before.
All along they were very professional and courteous, they just flat weren’t aware that the Z06 didn’t have a screen on the MAF sensor.
Going back next week when the MAF sensor comes in, my car stills runs perfect as is.
All in all I am very happy with the service, and I certainly wish I could say I was never wrong about anything before.
Consider that if you hadn't questioned his "expert" knowledge about this that you would have probably paid for a new MAF because you modified the old one. Shame on you.
It's just my opinion, and it oughta be yores - If they ain't got a tech with a Corvette sign, run do not walk to yore car and race out the exit door.
Charlie
