The two items are not related. Disconnect the mass air flow sensor to see if it changes how the engine runs. If it does, then first try cleaning it. They make a special cleaner for it. If that doesn't help, it will most likely need replaced. However, that has nothing to do with the transmission not shifting into reverse. Make sure the trans fluid is clean and full. If the check engine light is on, have the computer scanned to identify where the problem is coming from.
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Sunday, February 20th, 2011 AT 6:01 AM