Yes. The default state of the VSV is de-energized and since it's plumbed to be normally open vacuum will be applied to the modulator in that condition. The ECU energizes the VSV to block vacuum while at the same time venting the line (it's a three way solenoid) to hold the EGR valve closed. This...
^ Odd, mine was the cheapest car I've ever owned.
It's true mechanics are mechanics. It's also true car are cars. Good thing this one is simple. I have to chuckle at the next generation of youngsters who'll be dealing with OBDII on their first cars. Based on the current crop they're gonna be...
Can't have diag with an unpowered ECU. No +B = no diag. A simple fix or at least simple to find out where the problem is. Not that diag will help because once there's +B the problem will likely be gone. But no, better to just throw parts at the car. I don't get it.
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