Hard Start When Cold?

All questions about MS2/Microsquirt/Microsquirt module. See also MS2/Extra manuals

Moderators: jsmcortina, muythaibxr

Matt Cramer
Super MS/Extra'er
Posts: 17499
Joined: Thu Apr 16, 2009 8:08 pm

Re: Hard Start When Cold?

Post by Matt Cramer »

See this article for how to tune the trim pots.

http://www.diyautotune.com/tech_article ... _index.htm
Matt Cramer -1966 Dodge Dart slant six running on MS3X
Lazabby
Helpful MS/Extra'er
Posts: 54
Joined: Mon Apr 16, 2012 11:15 am

Re: Hard Start When Cold?

Post by Lazabby »

Today the car started with no problem. I drove it around the neighborhood. I have a problem where the car wants to "bog down" after starting at a stop sign. In other words, I come to a stop when I release the brake and begin to press on teh accelorator, the car briefly hesitates and acts like it will die before it takes off. I suspect the response time in a setting somewhere needs to be changed. What is that setting? I was unable to attach my log as it was too big so I compressed it and attached it.
2015-02-01_13.42.24.zip
Matt Cramer
Super MS/Extra'er
Posts: 17499
Joined: Thu Apr 16, 2009 8:08 pm

Re: Hard Start When Cold?

Post by Matt Cramer »

It's going lean; looks like the acceleration enrichment needs some fine tuning.

On a probably unrelated note, the battery voltage isn't very stable. Where exactly is the MS grounded?
Matt Cramer -1966 Dodge Dart slant six running on MS3X
Lazabby
Helpful MS/Extra'er
Posts: 54
Joined: Mon Apr 16, 2012 11:15 am

Re: Hard Start When Cold?

Post by Lazabby »

Matt Cramer wrote:It's going lean; looks like the acceleration enrichment needs some fine tuning.

On a probably unrelated note, the battery voltage isn't very stable. Where exactly is the MS grounded?
The MS is grounded to the engine block.
Post Reply