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MAP Sensor Leak

 
Old 03-28-2010, 03:59 PM
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Default MAP Sensor Leak

Finally had a chance to calibrate my sensor and retune my map this week so I went out and bought a vacuum pump.

Is it normal for air to escape this fast? MVI_1818 on Flickr - Photo Sharing!
I tested the gun and tube on my thumb and air didn't escape. I am pretty sure the leak was coming from the sensor it self.

I was barely able to calibrate it. I had to pump it while pressing learn.

The values I got for it were:

Low 16 343
High 300 3500

If the map sensor is leaking, could this explain my higher idle when hot?
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Old 03-28-2010, 06:31 PM
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Mine never leaked. How much vacuum can that pump generate? If the sensor or line is leaking, then it would create a bit of a higher idle.
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Old 03-28-2010, 06:55 PM
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85 kpa
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Old 03-29-2010, 10:08 AM
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that's funny, I was just noticing a similar thing over the weekend.

I hooked my mityvac up to the map sensor to recalibrate and it was damned hard to hold in one spot. it was maybe 1/3 as fast as yours at leaking. I noticed pinching the line made the leak stop.
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Old 03-29-2010, 12:01 PM
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I pinched the line and used a zip tie. It didn't make a difference.
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Old 04-03-2010, 08:34 PM
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Hmm, I will go out and buy a gauge tomorrow and see what happens...

I stil have little issues here and there but figured out heat is really a problem right now
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