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What makes the VSV actuate?

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Offline DesertDog

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What makes the VSV actuate?
« on: April 20, 2024, 04:32:20 PM »
I have a 1987 Samurai and have recently had the engine rebuilt. I went to get it smogged and it failed at the upper speed test. Troubleshooting has found the VSV solenoid (Blue/Green wire one not the Blue/Yellow wire) never opens. I checked and the +12V is on the Black/White wire but the 0V never activates on the Blue/Green wire. I understands this comes from the Electronic Control Module (ECM) but before I invest the time and money finding a new one I was wondering what tells the ECM to turn it on that might not be happening?

Any help is appreciated!

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Online fordem

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Re: What makes the VSV actuate?
« Reply #1 on: April 20, 2024, 07:35:31 PM »
The High Altitude Compensator or the fifth gear switch - check your post over at Suzuki Forum.
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