MAF Burn Off Cyle Duration - 88 Coupe

[afree029]

Can anyone tell me the MAF Burn Off Cycle Duration?
I'm getting a code 36 on my 88 and have found the MAF wire is only heated for about 2 seconds after shutting down the engine (after it has reached operating temperature). Not sure if this is enough time for the ECM to get a good reading or not.
I've researched this but can't seem to locate what the actual time should be. I have seen from 1 to 30 seconds.
Any assistance would be greatly appreciated.

 

[ejball]

Just had code 36 on my 1988. Found MAF Burn off Relay was bad. Easy to trouble shoot. Both relays for this system are behind the battery. I swapped the connectors as the relays are the exact same part number. The error codes changes to 33 and 34 if I remember correctly. Bought a new relay all was well. Do not know hol long burn off relay should be on, but the failure of my relay was welded closed so I believe the ECM would detect this and shut the system down another way and set code 36.

 

[fatboyreyn]

burn off cycle

Just had code 36 on my 1988. Found MAF Burn off Relay was bad. Easy to trouble shoot. Both relays for this system are behind the battery. I swapped the connectors as the relays are the exact same part number. The error codes changes to 33 and 34 if I remember correctly. Bought a new relay all was well. Do not know hol long burn off relay should be on, but the failure of my relay was welded closed so I believe the ECM would detect this and shut the system down another way and set code 36.

Burn off cycle is only 2 -3 seconds