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Old 09-13-2016, 01:02 PM   #8
rcweston
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Join Date: Oct 2005
Location: Farr West, Utah
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Re: hesitates, jurks or stops at times when slowing or stoping or starting out

Quote:
Originally Posted by Blue Bowtie View Post
One possible way to determine this is to disconnect the MAF entirely and run without it. ... But if the engine does not stumble or stall any longer, the MAF circuit should be investigated in depth. New MAF sensors are not inexpensive, so diagnosis of the circuit is going to be better than just throwing parts at it indiscriminately.
Today I ran the car with the MAF disconnected, It seems that the hesitation and stumbling came to and end. I reconnected it and it stumbled 3 times in less than 2 miles.
I have a meter with a frequency counter. If this is connected to the signal wire out of the MAF, should I see a change in frequency when the hesitation occurs? (car would be idling)
Rex
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