MAF Sensor
05-28-2013, 03:12 PM
#2
Deceased
Join Date: 06-30-2010
Location: Kannapolis NC
Posts: 25,739
You'll lose power as the vehicle enters "limp home" mode and the ignition timing will be pulled all the way to the low octane profile.
Once the engine warms enough to enter the open loop mode, you will be running an excessively rich air to fuel ratio, which will lead to plug fouling, misfires, and the possibility of ruining the catalytic converters.
Temporarily disconnecting the MAF is a diagnostic tool/trick, but don't run with it disconnected, you'll have a very unhappy HHR on your hands.
Once the engine warms enough to enter the open loop mode, you will be running an excessively rich air to fuel ratio, which will lead to plug fouling, misfires, and the possibility of ruining the catalytic converters.
Temporarily disconnecting the MAF is a diagnostic tool/trick, but don't run with it disconnected, you'll have a very unhappy HHR on your hands.
05-28-2013, 06:54 PM
#3
Administrator
Join Date: 10-13-2011
Location: Welland,Ont Canada
Posts: 36,519
X6, when you reconnect it, disconnect the battery for 30 minutes to reboot the computer, or it will take a few days for it to relearn itself, I learned the hard way with the dealer forgetting to reconnect the connection and I was in a hurry to get home when I first bought the HHR
06-05-2013, 08:42 AM
#4
Senior Member
Thread Starter
Join Date: 03-22-2012
Location: Rogers City, Michigan
Posts: 1,012
Maf
Thank you Friends, Romans, Countryman and HHR Owners
I learned that with the MAF sensor disconnected my gas mileage plummeted.
The DIC gave the same mileage readings but mileage was poor and at $4+ a gallon it is a dumb thing to do (in my opinion).
Boydie
Back in the Saddle....................
I learned that with the MAF sensor disconnected my gas mileage plummeted.
The DIC gave the same mileage readings but mileage was poor and at $4+ a gallon it is a dumb thing to do (in my opinion).
Boydie
Back in the Saddle....................You'll lose power as the vehicle enters "limp home" mode and the ignition timing will be pulled all the way to the low octane profile.
Once the engine warms enough to enter the open loop mode, you will be running an excessively rich air to fuel ratio, which will lead to plug fouling, misfires, and the possibility of ruining the catalytic converters.
Temporarily disconnecting the MAF is a diagnostic tool/trick, but don't run with it disconnected, you'll have a very unhappy HHR on your hands.
Once the engine warms enough to enter the open loop mode, you will be running an excessively rich air to fuel ratio, which will lead to plug fouling, misfires, and the possibility of ruining the catalytic converters.
Temporarily disconnecting the MAF is a diagnostic tool/trick, but don't run with it disconnected, you'll have a very unhappy HHR on your hands.
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