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ZUKIWORLD Model Specific Suzuki Forum => Suzuki Samurai (All SJ Platform) 1981-1998 => Topic started by: DesertDog on April 20, 2024, 04:32:20 PM

Title: What makes the VSV actuate?
Post by: DesertDog 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!

Title: Re: What makes the VSV actuate?
Post by: fordem on April 20, 2024, 07:35:31 PM

The High Altitude Compensator or the fifth gear switch - check your post over at Suzuki Forum.