MSefi.com read only forum (Jan.15,2018)

What % did you set for dead cold? and what kind of taper did yoiu use?

I guess Ill go back thru the assembly tests for the ign circuit and injector circuits and see if I can find a failure. even then I wont be sure how to trouble shoot a circuit and replace a bad part. the stim isnt making the board respond and flash a single inj LED, so Im ASSUMING those circuit(s ...

Ok its communicating with the laptop ,tps moves IAT moves, coolant moves, MAP is reading, RPM does not, O2 moves when I reboot stim.
Question does the relay board affect the injector pulses at all? is there a way to test the ign circut and injector circuts?

Ok its communicating with the laptop ,tps moves IAT moves, coolant moves, MAP is reading, RPM does not, O2 moves when I reboot stim.
Question does the relay board affect the injector pulses at all? is there a way to test the ign circut and injector circuts?

Im not sure what I did before to connect to the board. just plug it in and power up? Stim should work for power right?

wont connect to tuner studio. No led flashes. I havent changed the computer or cable but not sure to verify connection with laptop. I went to mini terminal and fooled around with no results. its not reading on the tunerstudio screen. says offline.

STIM, the ignition switch stays lit no rpm lights on the stim, fuel pump cycles that's it. No spark on crank or prime shot when the key is turned on

No the board doesn't get hot, when I say hot I mean it's connected directly to the battery except for the trigger lead and I just can't remember if it required a trigger lead from the key? Its been 3 years since Scott Clark tune the car so I went back an updated tunerstudio I'm looking for the cable ...

The megasquirt is always hot on the battery, is there a trigger wire from the ignition switch? I can't remember. , just thinking out loud maybe I'm not triggering the board although the pump relay comes on

STIM, lights pump light momentarily, IGN stays lit.

During a Jumpstart the motor fired as usual and was cold, so revving a bit to keep running as normal, and just ran worse and quit. All on charger. Now 1 buzzing injector, no spark, no injector prime shot on the key on. Tested the processor 40 pin for 5 volts in all 9 spots. All good there. Should I ...

I have read the info under the products. Has anyone done this and what was the outcome? I built the board and can go back in and add to it. It says I need to add pull up resistors. is that all that is needed? do I ditch the ford EDIS module and fire off of the board then?

Well I got the car tuned in! I Enlisted the services of someone that had Megasquirt experience. Scott Clark. Found the Dwell was too short, 1ms vs 3ms. that cleaned up alot of running issues. Then he dyno tuned it. Runs like a champ. Runs so well the clutch couldnt hold on the 2400# dyno wheel! Now ...

thanks for the reply Matt, I would just like to talk about the injector for a second. they are low impedance injectors rated 55 pounds per. the fuel pressure is 43 pounds. the motor is 142 cubic inches. I did go thruthe mass and thought I had size them correctly. any additional thoughts on sizing ...

here is one datalog.

I just want it snappy. off idle. and while driving of course. the throttle body is about 24 inches from the injectors and the valves.

heres a couple Msqs. I am going to have to edit some data logs to get them to fit

it wont let me add anymore. I am logging out and starting over

Here is the MSQ. this one I was fooling with the MAP vs Throttle position.

I will post the last log and the MS file soon. I still need help understanding.