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HDP	07-15-09 05:03 PM

Ecu question

Just want to make sure... for the sequential solenoids the signal the ECU sends to activate them is a ground? TIA.

HDP	07-15-09 11:36 PM

Can anyone confirm this?

scotty305

07-16-09 01:08 AM

Yes, the solenoids are wired to ignition power from the main relay and the ECU grounds each solenoid to activate it. Most of the solenoids will be off (not grounded) at low RPM... there's one that is the opposite of the others (will be grounded at low RPM) and I believe that is the Charge Control valve.

HDP	07-16-09 03:07 PM

Quote:

Originally Posted by scotty305 (Post 9360653)

But wouldn't the charge control valve activate at high RPM when the secondary comes online? Is the actuator plate for the secondary normally open or closed before startup?

Mahjik

07-16-09 05:35 PM

Quote:

Originally Posted by HDP (Post 9361820)

But wouldn't the charge control valve activate at high RPM when the secondary comes online?

Here's a good overview of when the solenoids (approximately) are activated:

http://www.autosportracetech.com/RX-...erOverview.htm

HDP	07-17-09 12:33 AM

Quote:

Originally Posted by Mahjik (Post 9362194)

Here's a good overview of when the solenoids (approximately) are activated:

http://www.autosportracetech.com/RX-...erOverview.htm

Thanks K. I wish I had this link day before y-day. :(

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