Long story short, a friend of mine dropped his s4 t2 off for me to wire up the megasquirt. 90% of this is strightforward, however im drawing a blank wiring the cas.

The diagram that came with the unit shows pin 2 and pin 24 for reluctor/distributor. im using a modified cas, is this the correct wiring then?

Where as this post shows the wiring using pin 7 and 24 respectivily where as pin 7 is a ground on my unit.

Another discrephency is that the linked post shows pin 8-11 and 15? as grounds (pin 15 should be pin 19?) where as my unit shows pins 7-9 and17-19 as grounds.

If anyone can point my in the right direction, it would be greatly appreciated.

thanks

-Jacob

 

Buller?

 

The Megasquirt can be configured internally in any way the builder wants. Pin 2 is one of the spare pins, and can easily be jumpered to ground. Pin 7 is one of the stock grounds, which can also be used.

You'll have to check how the unit is jumpered inside.

 

With a modded CAS you need Ne+ connected to pin 24 and Ne- to a ground on the db37.

Ken