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

Holl,
Thanks for that. I assume since you 'slowed' yours down, that it's normal for the controller's gauge to be a bit erratic while running?

Finally complete success! I finally got the IAC valve 'zereoed' in, so that it is completely closed at 180 degrees F, and now the truck idles nicely at about 850 rpm. I've since installed an MTX L wideband sensor and controller which has helped me get a pretty decent map using Tuner Studio and the ...

Gentlemen... I am back with new results...

After frying a few components several months ago on the controller, I replaced them, and went on with my business... but it seems that the firmware was corrupt which was causing my startup and die issue. I recently reloaded the latest code, setup my base ...

Here's the setup:
'67 Chevy pickup, inline 250 6cyl with TBI from 4.3. 45lb/hr injectors, narrowband O2 and standard big cap HEI. Doing a fuel only setup for now. Initial timing is ~12 degrees.

Truck starts after a second or two of cranking, then idles up and dies. I've worked with the ASE but can ...

Just wanted to post a reply, that I replaced the three components in question, and everything seems to be working normally.

Now on to the start-up and tuning...

Thanks!

Shawn

Matt,
Finally got my head out of my broken Subaru engine and replaced the U5 regulator and now have .499 volts on all 5v pins, as well as still having proper voltage on the 12v side.

So it looks like I just need to replace C13,C14 and R19 and I should be good to go?

I'm just wondering if this ...