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Old 07-15-2013, 12:01 PM   #2
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Join Date: Apr 2012
Location: Ontario, Canada
Posts: 598
I believe that p1508 is 'torque comparison function monitor- signal implausible': typically MAF sensor faulty or DME control monitor faulty. Since you have replaced the MAF sensor (I assume with the correct part), then one suspects it is the DME module. Alternatively, are you certain the connections are all good on the MAF? Did the throttle body require any serious cleaning prior to installation as that may have affected the contacts.

Brad
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