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post #1 of 5 (permalink) Old 12-20-06, 10:42 AM Thread Starter
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Mass Air Flow Sensor Test

Is there a way to test to see if it is bad? My symptoms go away when it is unplugged.
Symptoms are rough idle, bucking, stalling, etc. Runs fine at higher rpm. I did find a broken vacuum line which I replaced...others look ok.

Thanks in advance.

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post #2 of 5 (permalink) Old 12-20-06, 05:48 PM
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Re: Mass Air Flow Sensor Test

Can't say for sure, but I would say if everything works fine after you unplug the sensor I'd probably have it replaced.
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post #3 of 5 (permalink) Old 12-31-06, 05:15 PM
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Re: Mass Air Flow Sensor Test

Did you check to see if it's getting power. And did you check the resistance across the element?
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post #4 of 5 (permalink) Old 01-01-07, 01:26 PM Thread Starter
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Re: Mass Air Flow Sensor Test

No, what should the resistance be?

We took a new(reman) MAF Sensor and it did the same thing. Runs smooth, though at higher rpm, when MAF is unplugged. So I put the old one back on. Think I have narrowed it down to an air leak at the intake manifold but have not pinpointed the exact location.
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post #5 of 5 (permalink) Old 01-02-07, 08:00 PM
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Re: Mass Air Flow Sensor Test

Quote:
Originally Posted by archer0097
No, what should the resistance be?

We took a new(reman) MAF Sensor and it did the same thing. Runs smooth, though at higher rpm, when MAF is unplugged. So I put the old one back on. Think I have narrowed it down to an air leak at the intake manifold but have not pinpointed the exact location.

I just meant that if the resisance across the element does not register that is infinite then the element is shorted. It sounds like you have the problem nailed with the intake leak. Let me know how you fix the problem. Good Luck
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