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Old 01-18-2015, 05:13 PM   #1 (permalink)
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92 vx egr not engaging?

I have a vacuum gage on the vacuum line to the egr so I know when it turns on and it never does? I got a new cvc so I know thats good. I tested the egr solenoid and checks good. I swapped ecu no help. I ohm the orange/blue strip wire from egr solenoid to ecu and was good. My question is what sensor or sensors does ecu need to engage the egr? Maybe I have a bad sensor to the ecu so egr can't engage? Any thoughts???

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Old 01-18-2015, 09:50 PM   #2 (permalink)
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Are you sure your never getting vacuum ? Even for only a second or so when changing gears at high rpm say over 2800 rpm. Vx egr seems to be for emissions only not mpg so you won't see vacuum in cruise

Last edited by turbothrush; 01-18-2015 at 10:09 PM..
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Old 01-18-2015, 10:39 PM   #3 (permalink)
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Quote:
Originally Posted by turbothrush View Post
Are you sure your never getting vacuum ? Even for only a second or so when changing gears at high rpm say over 2800 rpm. Vx egr seems to be for emissions only not mpg so you won't see vacuum in cruise
O ya definitely. Zero vacuum. I have a vacuum gauge on it. There needs to be a constant vacuum on egr to keep it open when cruising. The egr solenoid is not engaging. That's what I am trying to figure out what sensors are used to allow ecu to turn it on?

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