After the Mass airflow sensor, the egr valve and DPFE were replaced the P0172 went away, now I have the jerk when letting of gas when traveling at any speed above 40mph. I had the transmission rebuilt in September, only has 10,000 since rebuilt, so I hope its not that again, was wondering if after all of this could it be that the computer needs to re-learn the egr valve position or could it be the coil. The coil is the original I think. I bought the car used. All of this started the day after I had the O2 sensors replaced as there was first a code for that prior to the P00172 that I now longer have. The engine light is not on now.
Thursday, May 8th, 2014 AT 6:09 AM