HELP!! I took my mass air sensor off and started my car on accident, check engine light on. I did the code test and that what it said was wrong, so I went to my computer and did the clockwise, counterclockwise thing that is supposed to make it go off, and it didnt work. Am I doing something wrong. HELP HELP!! Brent

 

You do it twice to reset. http://vbxmaxima.8m.com/ecu.html

 

I did it twice and nothing happened, I even did it a few times later on in the evening. Still did not go off???

 

Did you reconnect the MAF sensor?

 

This is what works for me:

turn the screw clockwise all the way. Wait at least 3 seconds. Turn the screw anti-clockwise all the way. Done.

DW

 

You have to do that at least twice in order for it to work.

 

I did it twice just now still didnt work. Any suggestions??

 

My bad. Yes twice. The 1st time to "invoke" the reading, and second to reset it. I was thinking faster than I was typing. Just do what I said before twice and see if that does it.

DW

 

When I did it twice it stayed on, and I even let it set for 2-3 seconds each time.

 

When I did it the wait of 2-3 seconds wasn't enough for me so I just waited for a good 10 seconds between each and that worked.

 

Wow. I gues the production tolerances can vary alot for the ECU diagnostic screw. I always wondered why tis a screw in the 1st place. Why not a push button or something?

DW