MAF burnoff wire

[bernsaudi]

Hello, can anyone give me a pointer about the maf burnoff, which wire is it so I can check it with a meter to see if it is working. I have just changed my MAF and want to know if it is this that could have caused it. Thanks.

[UrS4boy]

Hello, can anyone give me a pointer about the maf burnoff, which wire is it so I can check it with a meter to see if it is working. I have just changed my MAF and want to know if it is this that could have caused it. Thanks.

When you turn the engine off, the Holding Relay sends power to the MAF via Pin 37/55 to Pin 4/5 of the MAF connector for 5 seconds to burn-off any contaminants on the MAF hot wire. More MAF info including a link to the Holding Relay details here:

http://forums.quattroworld.com/s4s6/msgs/20442.phtml

[bernsaudi]

Excellent, thanks for that