Output to drive DCCD ?

ScoobyDuck
Posts: 49
Joined: Mon Aug 17, 2009 4:24 pm
Location: South Uk

Re: Output to drive DCCD ?

Post by ScoobyDuck »

Its been a while , so whats the agreeded way forward on this now on a S6PNP ?

take an INJ output from the AUX connector (need connector & Pins) with a 12V , and a diode (will something like a BAT43 do?)

or do the same but from any IGN pin usually used to drive an ignitor? (this can be one of the unused outputs already wired into the standard loom).

cheers
Steve
pat
Syvecs Staff - Cleaner
Posts: 356
Joined: Fri May 23, 2008 10:23 am
Location: Out there... somewhere
Contact:

Re: Output to drive DCCD ?

Post by pat »

Steve,

the AUX connector on the back of a PnP doesn't have INJ or AUX outputs on it, just IGN which you cannot use without an ignitor module. The simplest solution is just to use a spare INJ or AUX on the OEM connector. Connect one side of the DCCD coil to an ignition switched live and the other side to your spare output. Additionally you'll want to fit a flyback diode between the output and the ignition switched live to keep the temperature in the ECU sensible (and to reduce the duty needed to drive the DCCD). A BAT43 wouldn't last very long since it is a low current diode, you need something that will cope with more. The DCCD coil is a large item and it will draw a fair amount of current, so you'll want a bigger diode. Look at things like MBR1040 or similar.

Hope that helps,

Pat.
ScoobyDuck
Posts: 49
Joined: Mon Aug 17, 2009 4:24 pm
Location: South Uk

Re: Output to drive DCCD ?

Post by ScoobyDuck »

thanks Pat, i'll try and source something a bit beefier.

Steve
ScoobyDuck
Posts: 49
Joined: Mon Aug 17, 2009 4:24 pm
Location: South Uk

Re: Output to drive DCCD ?

Post by ScoobyDuck »

do you need to heatskink this diode? is it really going to get that hot ?
or can it bee left floating around in a tube of heatshrink, so it at-least looks nice?

what have other people done?

to-220 package has a nice bolt hole, its just where its gona be mounted etc (http://www.maplin.co.uk/isolation-16a-s ... fier-46431)
ScoobyDuck
Posts: 49
Joined: Mon Aug 17, 2009 4:24 pm
Location: South Uk

Re: Output to drive DCCD ?

Post by ScoobyDuck »

forget that, its plastic bodied ! lol
ScoobyDuck
Posts: 49
Joined: Mon Aug 17, 2009 4:24 pm
Location: South Uk

Re: Output to drive DCCD ?

Post by ScoobyDuck »

where is a good location for a +12volt drive for this? not sure where the OEM gets its power from / where it comes through the chassis ??

edit:
on a MY97, MAP/BAP solenoid ? that comes to the gubins on the O/S turret, so could use that?
what about the current its going to draw through those cables!? have people run a seperate fused 12v supply?
ScoobyDuck
Posts: 49
Joined: Mon Aug 17, 2009 4:24 pm
Location: South Uk

Re: Output to drive DCCD ?

Post by ScoobyDuck »

I have just wired up the DCCD and it seems to be working :)
I used the MAP/BAP solenoid on FUEL 06, which has a +12v as well so quite a simple wiring job in the cold and wet lol

What have people found best for the amounts of lock? and does having the brake wired in make things a lot more stable under braking? how much lock are we talking about for that?

Steve
Post Reply