GMS maf for cold air intake
Thread Starter
Pro
Joined: Jul 2002
Posts: 587
Likes: 11
GMS maf for cold air intake
I'm going to be getting a GMS maf that is tuned for a cold air kit.....
Anyone run one of these ? I have a 02 Z06 that throws codes when i put on my Halltech trap cold air kit. I found a guy on another site and I'm trading my GMS maf from my Firehawk that i sold.
I'm hoping it allows me to run the Halltech without throwing leans codes.
Thats why I'm wondering if anyone else here uses this Maf ?
thanks Tim
Anyone run one of these ? I have a 02 Z06 that throws codes when i put on my Halltech trap cold air kit. I found a guy on another site and I'm trading my GMS maf from my Firehawk that i sold.
I'm hoping it allows me to run the Halltech without throwing leans codes.
Thats why I'm wondering if anyone else here uses this Maf ?
thanks Tim
Thread Starter
Pro
Joined: Jul 2002
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I've already made a deal this this guy , and it's not really costing me much......... It's worth a try...... I know it might not be worth it, but since I've comitted....... I'll try it.
Tim hoping since it's "tuned for cold air" it will run ok.
Tim hoping since it's "tuned for cold air" it will run ok.
Melting Slicks
Joined: May 2005
Posts: 3,394
Likes: 12
From: Leon Iowa
St. Jude Donor '06-'07-'08-'09
Originally Posted by 00Hawk#140
I've already made a deal this this guy , and it's not really costing me much......... It's worth a try...... I know it might not be worth it, but since I've comitted....... I'll try it.
Tim hoping since it's "tuned for cold air" it will run ok.
Tim hoping since it's "tuned for cold air" it will run ok.
Melting Slicks
Joined: Feb 2001
Posts: 2,804
Likes: 358
From: Northville, MI
Only way to really find what is happening is to run a scan log. Find out what is happening and under what conditions. The MAF might control the lean conditions from throwing a code but what if it is lean that it doesn't quite trip the code, what about acel/decel. That is why the better solution is to scan and tune.
Race Director
Joined: Nov 2005
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From: Supporting the Corvette Community at Abel Chevrolet in Rio Vista, CA 707-374-6317 Ext.123
St. Jude Donor '08
The GMS's are POS's. If it is free you will not be wasting anything but time. But if you have to pay anything for it, save your money.
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Burning Brakes
Joined: Mar 2005
Posts: 949
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From: Rainier Oregon
What a headheache:
I ran one on my 04' Z, & had nothing but thrown codes with a Halltech Stinger. My tuner made me take the Granetelli Maf off, went back to my stock MAF, kept my Stinger on, before he would do my tune. I now have no codes.
Race Director
Joined: Dec 2000
Posts: 19,304
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From: San Diego CA
Another possible option is a screened MAF. I believe the 01 Zs had them? Apparently, the excessive turbulence caused by a larger intake and the lack of a laminar-flow screen plays havoc with the 02+ Zs.
Team Owner
Joined: Mar 2005
Posts: 32,274
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From: Somewhere between mild insanity and complete psychosis
Two Words: IDLE RE-LEARN !!!
Intake system changes only cause codes when not properly installed. Disconnect the battery when installing an intake system. Make sure the battery has been disconnected for at least 15-20 mins. When you restart the car let it idle for a while (I did 15 minutes). When the battery is disconnected for more than 15 minutes, when re-started the car will re-learn the flow of incoming air, as if it had just been started for the very first time. I have had a few c5s, and only had codes once when I forgot to do this after installing my vortex intake. The car threw codes AND went into limp mode. I realized what I forgot to do, disconnected the battery, and performed the above procedure. After I let the car idle for 15 minutes, I drove it spiritedly for a while then let it idle 15 more minutes just to be safe before I shut it off. Later, NO PROBLEMS.
Aside from intake, you can install headers and exhaust, the whole deal, and throw no codes as long as you idle re-learn. I have the vortex intake, B&B headers,and B&B bullet exhaust. IDLE RE-LEARN = NO CODES!!! You don't need the CAI MAF, but unlike what others have said it probably won't cause any problems as long as you let the car idle re-learn.
Intake system changes only cause codes when not properly installed. Disconnect the battery when installing an intake system. Make sure the battery has been disconnected for at least 15-20 mins. When you restart the car let it idle for a while (I did 15 minutes). When the battery is disconnected for more than 15 minutes, when re-started the car will re-learn the flow of incoming air, as if it had just been started for the very first time. I have had a few c5s, and only had codes once when I forgot to do this after installing my vortex intake. The car threw codes AND went into limp mode. I realized what I forgot to do, disconnected the battery, and performed the above procedure. After I let the car idle for 15 minutes, I drove it spiritedly for a while then let it idle 15 more minutes just to be safe before I shut it off. Later, NO PROBLEMS.
Aside from intake, you can install headers and exhaust, the whole deal, and throw no codes as long as you idle re-learn. I have the vortex intake, B&B headers,and B&B bullet exhaust. IDLE RE-LEARN = NO CODES!!! You don't need the CAI MAF, but unlike what others have said it probably won't cause any problems as long as you let the car idle re-learn.
Melting Slicks
Joined: Feb 2001
Posts: 2,804
Likes: 358
From: Northville, MI
When you change the airflow calibrations, you make minor changes to the way the PCM acts and reacts. You may eliminate codes, but you can be 23% rich or lean before you throw that code, your advance can be 5deg and not throw a code. Unless you scan, you never know. It may look good or sound good but you often loose HP
Thread Starter
Pro
Joined: Jul 2002
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I just the MAF from the other guy..... it has 2 holes in the middle section where the air divider is ? It looks like it was done by the people at GMS, I've never seen one like this, are these holes supposted to be there ?? I can see how it would improve the airflow.
I guess i'll call GMS, and find out if I need to.
thx tim
I guess i'll call GMS, and find out if I need to.
thx tim
Thread Starter
Pro
Joined: Jul 2002
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You might be right, but I didn't buy this one, I traded for it, for one I couldn't use. Plus I wanted to try it , since my car didn't like running my Halltech on the stock Z06 maf. This one is tuned for a cold air kit, so since it didn't cost me anything I'm going to try it.
if my car pinges or throws a code, then I'll go back to stock
if my car pinges or throws a code, then I'll go back to stock
Race Director
Joined: Apr 2004
Posts: 16,135
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From: Newberry FL
Cruise-In VIII Veteran
St. Jude Donor '07
Originally Posted by 00Hawk#140
You might be right, but I didn't buy this one, I traded for it, for one I couldn't use. Plus I wanted to try it , since my car didn't like running my Halltech on the stock Z06 maf. This one is tuned for a cold air kit, so since it didn't cost me anything I'm going to try it.
if my car pinges or throws a code, then I'll go back to stock
if my car pinges or throws a code, then I'll go back to stock
