# well at the ECU...

Posted by «§» (93 SE) on September 12, 2002 at 12:03:40:

In Reply to: At about what RPM should I see the lever for the power valve move.. posted by DA-MAX on September 12, 2002 at 11:51:30:

for pin 8 (I sent you a diagram with pin numbers a while back) which controls the "power valve control solenoid valve":
it says battery voltage at idle speed
and .7-.8V when engine is racing (up to 4k RPM)

so it uses a low voltage signal (almost ground) to close the valve to gives higher torque

: and what are the consequences of it getting stuck open or closed??

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: for pin 8 (I sent you a diagram with pin numbers a while back) which controls the "power valve control solenoid valve": : it says battery voltage at idle speed : and .7-.8V when engine is racing (up to 4k RPM) : so it uses a low voltage signal (almost ground) to close the valve to gives higher torque : : and what are the consequences of it getting stuck open or closed??