5ms dwell at idle, 3ms above 2k - Miata Turbo Forum - Boost cars, acquire cats.

Welcome to Miataturbo.net   Members
 


MEGAsquirt A place to collectively sort out this megasquirt gizmo

Reply
 
 
 
LinkBack Thread Tools
Old 05-06-2012, 10:17 PM   #1
Junior Member
Thread Starter
 
Join Date: Aug 2006
Location: Ridgecrest, Ca
Posts: 308
Total Cats: 0
Default 5ms dwell at idle, 3ms above 2k

The stock 99 ECU appears to use a 5ms dwell below 1000rpm and taper linearly down to 3ms above 2000rpm. To do the same thing in MS I added the following lines:

if (outpc.rpm < 1000) {
utmp2 += 20;
} else if (outpc.rpm < 2000) {
utmp2 += (2000 - outpc.rpm) / 50;
}

after:

utmp2 = flash4.max_coil_dur;

in ms2_extra_main.c. I'm using the 2.1.0d code base. I was hoping to solve the rolling idle problem I've had for years now but it didn't work. It does seem to have improved my acceleration out of idle but that's difficult to say for sure since I've been re-tuning everything including accel enrichment.

Just thought I'd post this in case someone else could find it useful.
arga is offline   Reply With Quote
Old 05-06-2012, 10:29 PM   #2
I'm Miserable!
 
Join Date: Jun 2009
Location: albany, ga
Posts: 1,869
Total Cats: 3
Default

2.1.0d is pretty old, you tried using the newer code versions, 3.2.1?
Techsalvager is offline   Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
Back to Stock Part Out!! Turbo Parts, MS2 Enhanced 01-05, Suspension, and MOAR! StratoBlue1109 Miata parts for sale/trade 16 10-02-2015 10:39 AM
Time to start learning and play with tuning The Gleas MEGAsquirt 3 10-01-2015 10:30 AM
Low oil pressure after 1.8 swap and new turbo setup JesseTheNoob DIY Turbo Discussion 15 09-30-2015 03:44 PM
why is my car running like pewp? (tune/datalog) itsMikey MSPNP 3 09-28-2015 07:40 AM
mslabs MS2 - Idle control issue ndragun MEGAsquirt 0 09-20-2015 11:28 PM


Thread Tools

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off



All times are GMT -4. The time now is 04:12 PM.