Mass Air Flow Cleaned, now transmission won't shift?
Asked by Jordan Apr 27, 2017 at 08:20 AM about the 2000 Chevrolet Impala LS FWD
Question type: Maintenance & Repair
So my MAF was very dirty when removed. I used appropriate cleaner and let
it dry for about an hour. I reinstalled the MAF and took it for a drive. My
check engine light came on, and it will not shift out of first gear. I read
somewhere that is the MAF was cleaned you must reset the vehicle's
computers so last night I unhooked my battery and let it sit overnight. I don't
know if it will work correctly or not, but is there a specific set of instructions I
have to follow to reset the parameters of the vehicle's computers? I heard
that I need to perform the GM Driving Cycle. Any thoughts? Anything is
much appreciated. I also read somewhere that the MAF calculates engine
load so the transmission knows when to shift because of line pressure.
7 Answers
** I understand how delicate the Mass Air Flow sensor is so I made extra sure not the let anything even get so close as to touching it or the hot wires. I even had the spray can back quite a ways so it wouldn't be too much pressure on the hot wires.**
Is the check engine light lit? If so have the trouble code read.
The check engine light is on, but I'm not sure what it is yet. I'm going to try and see later what it is. I believe it is still receiving power, but you might be correct with the wire being not routed correctly or a ground wire breaking. Thanks!
I am almost positive though that the code is going to be a P0101.
No problem! Thanks for your help!
***SOLVED*** I figured it out! I accidentally put the throttle position sensor in wrong and it now runs and drives better than ever before! Thanks for your help!
i got my maf sensor changed today and my car stil slows down where i lose power then it starts back up what should i do
