Various Issues - No Sync & Idle - 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 01-14-2015, 06:10 PM   #1
Senior Member
Thread Starter
iTrader: (1)
 
Join Date: Sep 2008
Location: Tucson, Arizona
Posts: 889
Total Cats: 55
Default Various Issues - No Sync & Idle

So I've been trying to track down this idle issue i have and i thought I fixed it but i didn't.... meanwhile I have a sync issue. I included a log from the 6th as well. It was idling weird back then but I didn't get the no sync indicator.

attched: 2 composite logs. 1 poor tune.

I have to admit that I haven't done a ton of tuning but my car did run and idle fine the 1 day a month I did decide to work on it and take a spin.

On my last drive home everything was fine till i got about a mile from home and the car started idling @ 2k+ when I pulled up to a light.

I've checked everything I could think of for a vacuum leak and have not been able to find one. I also turned my idle screw all the way in and still idle above 1500.


Car is a 90 with a 99 motor, ms3x, toyota cop, sequential with id1000
Attached Files
File Type: csv 2015-01-14_12.47.28.csv (63.6 KB, 29 views)
File Type: msq 2015-01-07_01.08.37.msq (226.2 KB, 27 views)
File Type: csv 2015-01-06_13.24.16.csv (294.8 KB, 31 views)
krissetsfire is offline   Reply With Quote
Old 01-14-2015, 09:18 PM   #2
Boost Czar
iTrader: (61)
 
Braineack's Avatar
 
Join Date: May 2005
Location: Chantilly, VA
Posts: 72,872
Total Cats: 1,790
Default

second composite looks bad. whatd you do?
Braineack is offline   Reply With Quote
Old 01-15-2015, 11:51 AM   #3
Senior Member
Thread Starter
iTrader: (1)
 
Join Date: Sep 2008
Location: Tucson, Arizona
Posts: 889
Total Cats: 55
Default

I'm not exactly sure. I hadn't really touched anything. I did upgrade the firmware... maybe I have a funky ground somewhere?

Does any of my tune stuff look glaringly wrong?
krissetsfire is offline   Reply With Quote
Old 01-16-2015, 05:38 PM   #4
Senior Member
Thread Starter
iTrader: (1)
 
Join Date: Sep 2008
Location: Tucson, Arizona
Posts: 889
Total Cats: 55
Default

Is it possible or likely that my cas is not working right ( or needs to be replaced)? I am completely stumped.

I can not find a single vacuum leak. I've checked every vacuum hose, every gasket, nuts on manifold, replaced the injector seals, bov check, etc...

I've screwed in my idle screw all the way and the car still idles fast. When I fix my timing to 10 it starts and then shuts down. Even if I back the screw all the way out it still won't idle when my timing is fixed @ 10. Keep in my everything was working fine until one day on my way home my idle just shot up and stayed there.
krissetsfire is offline   Reply With Quote
Old 01-16-2015, 05:41 PM   #5
Boost Czar
iTrader: (61)
 
Braineack's Avatar
 
Join Date: May 2005
Location: Chantilly, VA
Posts: 72,872
Total Cats: 1,790
Default

it looks like it's getting the signals, just not correctly.
Braineack is offline   Reply With Quote
Old 01-16-2015, 05:51 PM   #6
Senior Member
Thread Starter
iTrader: (1)
 
Join Date: Sep 2008
Location: Tucson, Arizona
Posts: 889
Total Cats: 55
Default

so.... what would cause a signal to not be read correctly? interference?

Bad circuit, bad wire, bad sensor?
krissetsfire 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
Bizarre connection issue? nick470 MEGAsquirt 1 09-30-2015 11:32 PM
Low oil pressure after 1.8 swap and new turbo setup JesseTheNoob DIY Turbo Discussion 15 09-30-2015 03:44 PM
Odd Steering issue interestedofold Suspension, Brakes, Drivetrain 5 09-29-2015 02:42 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 02:48 AM.