05-09-2015, 09:13 PM
Join Date: Nov 2013
Total Cats: 66
91 Miata No spark - DIYPNP
Yes, I read the whole "92 Miata no spark", no help there.
Helping a buddy out with his 91, DIYPNP. Some strange behaviors here.
We have the exact issues described in the other thread...Kinda?
I'll attach a couple tunes. when we run the "running ish" tune, the car actually fires up and idles "fine", but it sounds like a ******* riding lawnmower when it's running.
When we try to upload any of the DIYPNP website's basemaps, the car doesn't 'see" the cam signal, I think. we get no tach signal, no pulse width, and no spark.
I believe the megasquirt isn't "seeing" the cam sensor on the tune it's supposed to.
The biggest difference between the tunes i can see is that the ignition settings one is "4G63" and the other is "basic trigger". the basic trigger one works, but I'm 90% sure 4G63 is what it's supposed to be... but as soon as we switch that, we lose spark and pulsewidth on injectors.
1 why isn't the car seeing the cam sensor with the correct ignition settings?
2 is there a way to make 'basic trigger' work, or is that a really bad idea?
3 how do we get the car to give us a cam signal, and thus fuel and spark (both pretty important to make a car run...)
VR2 does trace back to pin 25 on microsquirt