lowpost

My mechanic (Not dealer) replaced my MAF 4 weeks ago and I started getting this code. They've checked the EGR valve and it's working properly. They've cleared the code several times but the code pops back up after 2-5 days of driving. My engine light also comes on and off intermittently. They replaced the MAF again, but same problem.

Any thoughts? They have a star.

phingoc

Whitch engine do you have?

Did the mechanic check freeze frame of the dtc to determin to high or to low maf value at the time the code was set?

Rudeney

SDS diagnostic procedures say to check the EGC vacuum transducer (Y31/1)

lowpost

Thanks! I'll ask my mechanic if he checked this.