blalockalex

Alright guys ive got a 95 turbo. Megasquirt v2.2 has good signal to the ecu from the cas but output is only 5 volts to the coils. Is my ignition drivers going bad in the ecu or is it something simple? Any info would be awesome lets figure this thing out

Braineack

iTrader: (62)

your ouput drivers are supossed to supply 5v to trigger.

blalockalex

Shoukd it be a pulsing 5v or constant?

Also im getting a spark at the coils when the key is first switched on but nothing after that

Matt Cramer

It should be at 0 volts when at rest, go to 5 volts to start dwelling the coil, drop to 0 when the spark fires.

blalockalex

well im getting a 5v with key on and it stays at 5v do you know why? i dont know anything about ms. getting no spark at all

Matt Cramer

Sounds like your spark output settings are backwards.

blalockalex

But how does it do that all of a sudden?

Matt Cramer

Are you sure it was all of a sudden? I've seen coils run a while on the wrong setting before they fry.

blalockalex

Well idk but I lost all spart and my coils are good