I am using megatune2.25b514 with Extra024s9a. I am not getting a spark. I have 12 volts going to coil. It sparks when i turn the key off. i am using the gm hei 4pin module. I also am using the v3pcb.
Alright, in megatune i get readings from all my sensors:clt, iat, tps, o2, and getting good tach singnal.I am getting the tach signal from a 82 dizzy. I installed the 12v and 5 volt pullup resistors and wired it up as in mobys wiring schematic.
I have had my car running with standard megasquirt for a couple of minutes but it wouldnt rev over 1500rpms because i had the afm unplugged from the stock ecu. Now i ripped all that out and have my new ms harness wired up and did all the mods to the board for MSnS-extra.
I went to the outputs and set LED17 as spark output instead of squirt and the LED on the ms box stays on and when i turn the motor over it blinks real fast. I think thats right because the signal coming out should be a ground and when it takes the ground away that when it jumps the spark over to another grounded spot which would be the spark plugs.
I didn't do the thing were you set the motor to tdc and turn the dizzy to 5 deg. max advance or whatever because i set the dizzy to tdc when i swapped my turbo motor in and im just trying to get a spark right off the coil for now.
Do you have to se the dizzy specialy for megasquirt. I have trigger angle set at 78 degs. does that mean i have to set the dizzy at around that angle to. Or would it still get a spqrk right off the coil but it wouldn't be lining the rotor up with the spark plug when it triggers the spark.
I haven't found any .msq extra maps for the version im using. My cars been down for 3 weeks now, so im ready to get to the point were i can tune it.
Here are the mods for my car if some1 has similar: 60mm tb, 550cc inj., 14 psi, all emisions stuff taken off . thats all the major stuff.
I have a new 4 pin gm hei module but i think it may have burned it up because i had power to the coil and it wasn't bolted down to any thing and i tapped the aluminum sinc on a ground a couple of times and it made the coil throw a few sparks everytime i lifted it and it got pretty warm.Im replacing that tommorow.
If anybody could help me out with the major things you have to have set in megatune that would be nice.I have the fuel good, just need spark settings and stuff like that.