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

Ok. I fixed it. Cold solder joint on U4. I was able to get the stim back into a condition in which injectors were wide open when they shouldn't have been. I started checking voltage with a multimeter. When I touched one of the pins, the injector LEDs started pulsing. I re-soldered all 8 of the ...

Trakkies,

I think you're right on. I think the flex issue is with the stim, but I had a new finding.

Yesterday, I fired up the ECU on the stim. Injectors were firing on the stim. The injector LED on the front of the ECU was flashing. All looked well. I left it on for several hours. When I came ...

I had to put the car on the trailer and tote it home.

With MS on stim, I can often reproduce the problem by plugging in the stim while slightly flexing the stim upward. This puts a bit of load on the DB37. When I pull the stim down, and unload the DB37, all is right with the world.

Other than that ...

Help. I'm running a MSII, PCB 3. I am at a Chumpcar race and my ECU is erratically pulsing the injectors.

Here's the scoop. The engine used to run perfectly. I started having starting issues, but the engine ran perfectly once started. During our last race, the injectors went to solid ground and ...

Ok. I declared victory a little early.

Here's the deal. I'm using IAC1 as my spare port to trigger an electric fan relay. When Megasquirt is powered on, everything works perfectly! As soon as I power off megasquirt, the relay trips and the fan comes on. Turn on Megasquirt, the fan shuts off until ...

Eureka! Well, sort of. The FIDLE isn't working, but the IAC spare ports are. All I need is 2 spare ports. Now I have them.

I was following Trakkies's words of wisdom. I can see that R19 has voltage when it should and doesn't when it shouldn't, but pin 30 was still no good. I had narrowed down the ...

I turned off the "solenoid" setting. No luck. Still won't ground.

Trakkies: what are the drivers that you mention? Which ones are they on the diagram?

For what it's worth, the "port 0" indicator goes on-and-off in tunerstudio. The last time I used the stimulator, I couldn't get the fidle light to ...

I have been on a hiatus for the last few months, but I'm back at it now.

I have attached my msq.

I cannot get the FIDLE or the IACs to work as spare ports. For the IAC, I installed the jumper wire as instructed. I can get the Accel LED to function as a spare port, so I believe I have the software ...

Help.

I have MS2 with motherboard v3. I built if from a kit. I have been using it successfully for 2 years on my Lemons race car. Recently, I decided to use the FIdle to drive a relay to a circuit that will have flashing lights,, sirens and whatever else it will take to alert my Lemons drivers in ...

I have a Toyota MR2 with a 4AGE blue top engine running on MSII. I would like some guidance for setting up automatic mixture control. Right now, I have the auto-generated VE table. I have an Innovate wideband.

In the AMC, any recommendations for settings for:
Step Size (%)
Minimum VE Change ...