A new poor mans ebc idea...

[1993TalonTsiAWD]

Has anyone tried to use a simple potentiometer with the stock boost control solenoid? If possible you could vary the voltage going to it through resistance changes causing it to stay open or closed longer. This in turn would possibly control the boost, another option though im not sure how one could do it, would be pwm (pulsed width modulated) you know like a returnless fuel system. I think the potentiometer would work better though. Im not sure how big of a range we would need, not even sure how much voltage gets fed to the solenoid in stock form. I know it has something to do with the ecu,but other than that im oblivious. I do know Im gonna try it and want to know others options on it.

If it's a bad idea let me know,but as of right now I see no real BIG problems.

Also I plan to put a switch to bypass the potentiometer for a low boost setting.


thanks Derek

 

[Defiant]

I think all you'll get is a CEL when it sees the BCS value out-of-range.

 

[1993TalonTsiAWD]

Its not going to have anything to do with the ecu anymore. It will be on it's own fuse. It will be controlled primarly by a dimmer switch or some other potentiometer. How will that throw a cell, and why isn't mine throwing a cell,because it was disconected a long time ago?

thanks Derek

 

[eclipsegsx1736]

This is why no companies design parts for just our cars, were just too damn cheap to pay for the real stuff! I made an "electronic" boost controller using a MBC. I hooked up a small servo motor (turns slowly) to the knob on the MBC and wired a switch in the cockpit. Flip the switch up and the motor turns the knob slowly. Flipping it down turned the boost down. Holding it for about a second was 1 psi or so. Worked pretty well.

 

[95TalonOwner]

Its not going to have anything to do with the ecu anymore. It will be on it's own fuse. It will be controlled primarly by a dimmer switch or some other potentiometer. How will that throw a cell, and why isn't mine throwing a cell,because it was disconected a long time ago?

thanks Derek

1g's don't throw a CEL when the BCS is disconnected.

 

[wret]

The BCS is a solenoid valve. It is either open or closed. There is no half way. When supplied with a lower voltage, there will be threshold beyond which it won't actuate. The only way to make it cockpit variable is to use an adjustable pressure switch.