TR Conn
Member
- Joined
- Dec 13, 2006
- Location
- Long Beach, Ca
Erratic spark output
Megasquirt 2 v3 on a B20.
Something is fried in the ECU. Engine won?t run no matter what crank input. I?ve tried distributor -, points trigger, 36-2 with VR sensor, and with a Hall sensor. In all cases the tooth logger and composite logger have normal looking patterns.
The problem is the output to the coil, it is very erratic.
When attached to the stim (low end 5 pots) I get a stable tach reading, but the LED for ignition fires 2 to 4 times per second at 800 rpm. I raise the rpms to 5000 and the ignition output is just about the same. The LEDs for the injectors operate as they should.
I?ve checked over the board several times for soldering, correct parts in the proper places, jumpers where they should be.
My only guess is that something is fried; hopefully it isn?t the daughter card.
Looking back, it seems that my problems began around the time I started using the BIP373 for the spark. It worked well at first, but began giving synch errors. I figured the Bosch 124 would be better, but it had the same problems.
Any help or insight would be greatly appreciated.
Thanks, TR
My setup:
B20
MS2v3
Tunerstudio V3 1.05
MS Extra 3.4.2
36-2 w Hall sensor (both from DIYAutotune)
Bosch 124 module
Locked distributor
Megasquirt 2 v3 on a B20.
Something is fried in the ECU. Engine won?t run no matter what crank input. I?ve tried distributor -, points trigger, 36-2 with VR sensor, and with a Hall sensor. In all cases the tooth logger and composite logger have normal looking patterns.
The problem is the output to the coil, it is very erratic.
When attached to the stim (low end 5 pots) I get a stable tach reading, but the LED for ignition fires 2 to 4 times per second at 800 rpm. I raise the rpms to 5000 and the ignition output is just about the same. The LEDs for the injectors operate as they should.
I?ve checked over the board several times for soldering, correct parts in the proper places, jumpers where they should be.
My only guess is that something is fried; hopefully it isn?t the daughter card.
Looking back, it seems that my problems began around the time I started using the BIP373 for the spark. It worked well at first, but began giving synch errors. I figured the Bosch 124 would be better, but it had the same problems.
Any help or insight would be greatly appreciated.
Thanks, TR
My setup:
B20
MS2v3
Tunerstudio V3 1.05
MS Extra 3.4.2
36-2 w Hall sensor (both from DIYAutotune)
Bosch 124 module
Locked distributor