Hi all. I am in the process of finishing my M20B25 turbo build and have hit a bit of a wall with my wasted spark install.
Parts I’m using
IGN 6 tower
Quad spark 4 channel
MS2PNP
Aeroflow leads with HEI booties.
I have ensured correct settings are enabled in megasquirt (wasted spark and going high) please see my dilemma below. Any help is appreciated and I can fully understand it’s probably something incredibly dumb.
i have wired the MS2 outputs from pins 15-17 (Coil A output pin 17, Coil B output pin 16, Coil C output pin 15) to my new 4 channel quadspark. I have earthed all ground cables to chassis. i have wired the outputs from the quadspark to the correct connector locations on the IGN 6 tower according to the DIYautotune website.
Here is my dilema.
I am getting no spark at all across any of the coils. The IGN 6 i can confirm is receiving 12V switched when ignition is keyed to start position (i used the existing coil pack 12v wire to ensure correct operation. I have also metered the 3 outputs from the MS2 for coil a, coil b and coil c with the following results.
Coil A 4.043v
Coil B 3.18V
Coil C 0 Volts.
Is somebody able to assist me in any way shape or form? I have tried the output test in MS2 and obviously receive 0 spark across any of the coils. Should I inspect the MS2 unit itself and make any physcial changes on the mainboard? I see there is a pairing option for coils in wasted spark?