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

I have no idea the amperage of my IAC motor. Are you suggesting putting an in-line fuse for protection because of bypassing the resistors on the daughter card?

Here is an update: I switched the wiring to the IAC as suggested earlier. Now with the key on the IAC pintle retracts. I played with it by running the pintle out by hand and then turning the key on, each time the pintle retracted. Now it seems that I have consistent operation in the proper way! I ...

Thanks for the clarification. I read in the Idle Control document that the code works as follows: 1) At start up, the motor retracts fully (wide open, fastest idle). This becomes the zero posistion. 2) It then begins to close gradually with coolant temperature.
I was not sure when it said "start up ...

Lance,

Thank you for the fast reply. I soldered the resistors on question. I now get consistent activity. With the key on the IAC pintle extends, during cranking it begins to retract. The engine stalled right away and movement stopped. I believe it is working properly now. My tests were done with ...

I am having a problem with my IAC motor that I am trying to sort out. The IAC motor acts very sporatic, sometimes it moves a little, sometimes it just buzzes, and sometimes it does nothing. I have it wired up exactly as the wiring diagram from DIYAutoTune shows (I am using their harness). I have ...

I am expiriencing the extact conditions with my IAC that mattrampone described earlier. I have the factory wiring diagram and have it wired as shown in Metatune diagram.
So just to clairify, did you determine that another wiring combination (other than what was shown in the Megatune diagram) fixed ...

Thanks, I just used notepad to read a .vex file.

I see people post data logs in a file format that has a .vex designation. I can't find the program that reads these. Can someone help me out?

I now suspect that the Megasquirt is misreading the coolant temp sensor. I wired the IAT and CLT sensors directly to the Megasquirt and the readings changed. The IAT is correct now, but the coolant sensor is reading 7 F. The coolant temp is actually 40 F.
I have checked resistance through the ...

I have installed my megasquirt on my 305 TPI/ Supercharged chevy. I have piggybacked it so that I can learn how to tune fuel before tuning spark. The engine starts, runs for about 10-15 seconds, floods, and stalls. Now I know that at my idle pulse width is high (about 14 ms) and I need to tune ...