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Aac Solenoid Dead Confirm

rmahnovetsky

By rmahnovetsky,
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rmahnovetsky

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Im just want to confirm with other if my solenoid is a goner. See hear are my checks to belive it is gone.

-- I took the AAC solenoid off and I checked the voltage on the plug it has over 10 volts when the car was in ON but not running. Then I plugged in the solenoid and the pin did sweet FA - there is power but no magnetic field. Should the pin be sucked in on a cold start?

-- When my car is running I take the plug off and it does nothing.

-- To my surprise the resistance in the solenoid is still 10 ohms. This gives me a little doubt that the solenoid is gone but maybe not enough power to it.

-- The IAC valve work fine. I turned on the aircon I hook it up and the pin was sucked in.

As I dont have my voltage supply gerneator with me so I was not able to test if the solenoid work with an external power. Oh I did try a AA battery that did nothing I would have thought maybe a little bit of sucking power..

could it be dead?

Edited by rmahnovetsky
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rmahnovetsky Proficient

rmahnovetsky

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update: arfter further checking it seems my ground wire has a cut in it somewhere. As I have power if I use chassis ground but no power directly test the 2 plug wires. Now to find the break :D

Edited by rmahnovetsky
rmahnovetsky Proficient

rmahnovetsky

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Didn't end up being to bad .. I cleaned the terminals to the ecu and it was back up and running again :D

You could feel the solenoid pulse when you pressed the pin. The pulse change slightly as I reved the motor and the revs where comming back down. So I dicoverd it was using a duty cycle to open and close the valve, pretty cool. More duty more open the valve and vice versa.

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