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

In the interest of others who will read this thread and want some closure on LC1 grounding issues:

http://www.pftuning.com/megasquirt/Megasquirt_and_getting_started_2009.pdf

Note slide 25 states that the LC1 Analog and power grounds should be grounded seperately (2 different ring terminals) to a ...

Megasquirt grounds the output pin for a couple seconds (not sure how long exactly) when it's first turned on. You could pull the relay and check continuity from the pin that the Megasquirt wire goes to and ground. It should be continuous (0 ohms) to ground for the first couple of seconds when the ...

Thanks Mike, and you're absolutely right about grounding practices. Actually, that's why I seperated Heater ground and signal ground. I'm trying to keep signal ground sacred and clean.

I'm pretty bummed about having to wait another week or two until I can get my AFR dialed in.

It looks like the "Main Relay" is intended to provide power to Megasquirt (hook pin OP3 to 2A fuse to Megasquirt +12V in). You do need to wire an unswitched (direct from battery) power source to pin OP6. The third and final thing needed to supply a switched power source to your Megasquirt is a ...

One comment- I have a 7-wire unit.
My blue wire is going to a chassis ground for my heater ground. My white and green leads are going to Microsquirt signal ground.

This means that all my ground aren't wired together to avoid feeding the noisy heater ground into my signal ground.

I doubt it but ...

I should have been more specific in my last post, obviously I hooked up all grounds before hooking the WB up to a running engine and MS, however I did test voltage on the brown lead of the LC-1 w/ just the LC-1 on prior to turning the car on...

Soo- I went thru the process of recalibrating as ...

This procedure looks well thought out. i will try it when I get home, thanks!

Matt- early on (before recalibration) I measured 0V while the car was running. I measured right out of the LC-1 controller. Heater ground and signal grounds were wired up. I checked again last night but this time only the ...

My Innovate worked just fine for about a year. My car was out of comission for the past 10+ months, I just recently rewired the car from MS2 to Microsquirt. Here's the scoop on the Wideband sensor: when I turn the ignition on the LED gives proper indication (slow, normal pulses for about a minute ...