Please Explain MAF Differences between years
Thread Starter
Le Mans Master
Joined: Aug 2005
Posts: 7,890
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From: FL
Please Explain MAF Differences between years
Can someone simplify this for me? I have a 98 with all of the bolt ons. I figured I would look into a MAF. I know I have read that going to an aftermarket one is sometimes a bad idea without having the car tuned.
What about switching to the other year C5 maf that is larger? What is required to do this?
Thanks fellas.
What about switching to the other year C5 maf that is larger? What is required to do this?
Thanks fellas.
Race Director
Joined: Oct 2002
Posts: 16,477
Likes: 26
From: Gone
CI 6-7-8-9-10 Veteran
St. Jude Donor '03
97-00 used a 3 wire 75mm MAF
01-04 C5 used a 5 wire 85mm MAF with integrated IAT sensor.
02-04 Z06 used the same 85mm as the C5, except without the screen.
To use a later model MAF, you would need a 01-04 airbridge, an 01-04 air filter setup, and the harness adapter to adapt your (currently separate) IAT sensor to work with the new MAF.
This link might help:
http://ls1howto.com/index.php?article=25
There is not much to be gained by doing all this, and if you do decide to do the conversion, use a factory GM MAF...the aftermarket (like Granatelli) are junk, and tend to cause more problems than performance.
01-04 C5 used a 5 wire 85mm MAF with integrated IAT sensor.
02-04 Z06 used the same 85mm as the C5, except without the screen.
To use a later model MAF, you would need a 01-04 airbridge, an 01-04 air filter setup, and the harness adapter to adapt your (currently separate) IAT sensor to work with the new MAF.
This link might help:
http://ls1howto.com/index.php?article=25
There is not much to be gained by doing all this, and if you do decide to do the conversion, use a factory GM MAF...the aftermarket (like Granatelli) are junk, and tend to cause more problems than performance.
Last edited by Y2Kvert4me; Feb 16, 2008 at 04:58 PM.
Instructor
Joined: Jan 2008
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From: Forest Park Illinois
Thread Starter
Le Mans Master
Joined: Aug 2005
Posts: 7,890
Likes: 0
From: FL
Thank you ytkvert and others
I know its probably not worth the bother but I want to say I have all of the bolt ons since I can't afford the next step in heads/cam or FI and ill be prepared when i can
I know its probably not worth the bother but I want to say I have all of the bolt ons since I can't afford the next step in heads/cam or FI and ill be prepared when i can
Melting Slicks
Joined: Nov 2003
Posts: 2,898
Likes: 5
From: Plainfield, IL
Humm thats weird I have an 03 Z06 and just the other day I pulled out my MAF to clean and I swear there were only 3 wire sensors inside of it not 5 like listed above?!? Its the original MAF with the IAT sensor in it. Does the IAT sensor count as the other two wires or something? Cant think of anything else.
James
James
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Race Director
Joined: Oct 2002
Posts: 16,477
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From: Gone
CI 6-7-8-9-10 Veteran
St. Jude Donor '03
Yes.
By wires, I was referring to the number of wires leading to the sensor (at the connector)...not the sensing wires you see inside the MAF.
You should see 5 wires at your 03 MAF connector: They are as follows:
Pink (12v ignition voltage)
Black/white (ground)
Yellow (MAF signal to PCM)
Purple (low voltage to IAT sensor)
Tan (IAT signal to PCM)
By wires, I was referring to the number of wires leading to the sensor (at the connector)...not the sensing wires you see inside the MAF.
You should see 5 wires at your 03 MAF connector: They are as follows:
Pink (12v ignition voltage)
Black/white (ground)
Yellow (MAF signal to PCM)
Purple (low voltage to IAT sensor)
Tan (IAT signal to PCM)