MAS problem?

[crankin]

I have had a hard start when warm then stumble problem with 1990 735 IL. The check engine light stays on until I get rid of the stumble by pressing the throttle to clear it ou.
I did a stomp test, and the code indicates its the MAS.
Does a bad MAS cause these symptoms and is it likely bad or just a bad connection to it or something? Is there an easy way to test for this?
Thanks

[crankin]

Sorry It is an MAF. Any help is appreciated.

[winfred]

it's fairly easy to pop the top off the air flow meter and clean the trace with a non residual cleaner, like tuner spray or contact cleaner, reseal the top with silicone