3.2.1 firmware update and now no tacho in TS - 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 07-22-2012, 11:57 AM   #1
Newb
Thread Starter
 
Join Date: Jan 2011
Posts: 17
Total Cats: 0
Default 3.2.1 firmware update and now no tacho in TS

Hi fellas, i have a 93 1.6 and the car was running fine with 3.0.3s firmware. I updated to 3.2.1 and fried my ignitor in the process (i disconnected it while reflashing the firmware but then had the ignition on with the MS powered off). So i decided to go COP (4pin) and have them wired up as per instructions. Now the car won't start.
TS connects with the MS but when i try cranking the the car i'm not getting any rpm in tunerstudio. I've tried reloading the firmware and installing the bootload jumper - but still nothing!
I understand MS gets it's tach signal from the CAS and i've checked the wiring between it and MS and everything seems fine.
I have updated my thermistor tables and i'm kinda at a loss as to what is wrong??
Could it just be a wrong setting in TS? Would trying a different tacho output in TS do any harm?
Thanks
markoc1982 is offline   Reply With Quote
Old 07-22-2012, 12:05 PM   #2
Boost Czar
iTrader: (61)
 
Braineack's Avatar
 
Join Date: May 2005
Location: Chantilly, VA
Posts: 72,900
Total Cats: 1,793
Default

did you reload your msq?
Braineack is offline   Reply With Quote
Old 07-22-2012, 12:07 PM   #3
Newb
Thread Starter
 
Join Date: Jan 2011
Posts: 17
Total Cats: 0
Default

yes i reloaded the msq i had saved before i updated the firmware
markoc1982 is offline   Reply With Quote
Old 07-22-2012, 12:09 PM   #4
Boost Czar
iTrader: (61)
 
Braineack's Avatar
 
Join Date: May 2005
Location: Chantilly, VA
Posts: 72,900
Total Cats: 1,793
Default

what's the composite logger look like when you crank? because sounds like your not getting the signal from the CAS, which doesn't make sense.
Braineack is offline   Reply With Quote
Old 07-22-2012, 12:58 PM   #5
Newb
Thread Starter
 
Join Date: Jan 2011
Posts: 17
Total Cats: 0
Default

Log attached while cranking.
The tps wasn't recalibrated for this log but i had done it after and still the same
Attached Files
File Type: msl 2012-07-11_20.50.56.msl (509.0 KB, 107 views)
markoc1982 is offline   Reply With Quote
Old 07-22-2012, 01:01 PM   #6
Boost Czar
iTrader: (61)
 
Braineack's Avatar
 
Join Date: May 2005
Location: Chantilly, VA
Posts: 72,900
Total Cats: 1,793
Default

composite logger. on diagnostics tab.
Braineack is offline   Reply With Quote
Old 07-22-2012, 02:27 PM   #7
Newb
Thread Starter
 
Join Date: Jan 2011
Posts: 17
Total Cats: 0
Default

Hi Brain is this what you were looking? I tried cranking for about 4 or 5 seconds and got this log
Attached Files
File Type: csv 2012-07-22_18.16.04.csv (32.7 KB, 70 views)
markoc1982 is offline   Reply With Quote
Old 07-22-2012, 02:52 PM   #8
Boost Czar
iTrader: (61)
 
Braineack's Avatar
 
Join Date: May 2005
Location: Chantilly, VA
Posts: 72,900
Total Cats: 1,793
Default

the signals you are inputting from the CAS dont make sense, so you're not syncing.
Braineack is offline   Reply With Quote
Old 07-22-2012, 03:02 PM   #9
Newb
Thread Starter
 
Join Date: Jan 2011
Posts: 17
Total Cats: 0
Default

When i have MS connected to TS the 'Not syncing' box is red. What is not in sync? Sorry for the noob q's but i appreciate your help and have been scratching my head and reading up trying to figure this out for a few days
markoc1982 is offline   Reply With Quote
Old 07-22-2012, 03:23 PM   #10
Boost Czar
iTrader: (61)
 
Braineack's Avatar
 
Join Date: May 2005
Location: Chantilly, VA
Posts: 72,900
Total Cats: 1,793
Default

when the MS interprets the CAS signals correctly.
Braineack is offline   Reply With Quote
Old 07-22-2012, 03:48 PM   #11
Newb
Thread Starter
 
Join Date: Jan 2011
Posts: 17
Total Cats: 0
Default

What could be wrong then? Something internal with the MS (a hardware problem) or a setting in TS?
markoc1982 is offline   Reply With Quote
Old 07-22-2012, 03:49 PM   #12
Boost Czar
iTrader: (61)
 
Braineack's Avatar
 
Join Date: May 2005
Location: Chantilly, VA
Posts: 72,900
Total Cats: 1,793
Default

no it looks like the signals coming in are incorrect. no pattern to them like it should be outputting. check the connection?
Braineack is offline   Reply With Quote
Old 07-22-2012, 04:28 PM   #13
Newb
Thread Starter
 
Join Date: Jan 2011
Posts: 17
Total Cats: 0
Default

I'm just after checking the connections again. I don't have a scope but when i put the multimeter onto the harness on pins 24 and 25 at the db37 i was getting 0v with the ignition ON and 5v when cranking. So it's getting some kind of a signal? Although this 0 -5v is pulsed?
markoc1982 is offline   Reply With Quote
Old 07-22-2012, 04:32 PM   #14
Boost Czar
iTrader: (61)
 
Braineack's Avatar
 
Join Date: May 2005
Location: Chantilly, VA
Posts: 72,900
Total Cats: 1,793
Default

the composite logger is pretty much a scope.

should look like this:




where green is the cam, blue is the crank singals. red is the error (was expecting a signal, or a recorded a signal where it wasn't expecting)
Attached Thumbnails
3.2.1 firmware update and now no tacho in TS-k20_mini_composite.jpg  
Braineack is offline   Reply With Quote
Old 07-22-2012, 04:53 PM   #15
Newb
Thread Starter
 
Join Date: Jan 2011
Posts: 17
Total Cats: 0
Default

Cheers. Is there a possibility that i have a setting wrong in TS and that the CAS is sending a proper signal but my MS is not interpereting it properly because of a wrong setting?
markoc1982 is offline   Reply With Quote
Old 07-22-2012, 06:18 PM   #16
Boost Czar
iTrader: (61)
 
Braineack's Avatar
 
Join Date: May 2005
Location: Chantilly, VA
Posts: 72,900
Total Cats: 1,793
Default

not on the log I saw.
Braineack is offline   Reply With Quote
Old 07-22-2012, 06:51 PM   #17
Newb
Thread Starter
 
Join Date: Jan 2011
Posts: 17
Total Cats: 0
Default

Could the signal be corrupted because of noise from other cables? I had made a harness from the miata ecu plug to the db37 and the CAS wire is not shielded? I think i'll get another ignitor, put the normal plug leads back on, use the old firmware i had running and just start from where i was when the car was running right. I'll see if that gets me anywhere. I know it shouldn't affect the CAS - which is my problem now - but i have to try something.

Thanks for your help
markoc1982 is offline   Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
LucaCarMods's Boosted Dutch Miata Build! LucaCarMods Build Threads 11 02-14-2016 07:13 AM
Time to start learning and play with tuning The Gleas MEGAsquirt 3 10-01-2015 10:30 AM
In need of base map for stock 1997 brandonbkd MEGAsquirt 0 09-29-2015 12:52 AM
ms2e No Rpm Signal Dobzeh ECUs and Tuning 5 09-17-2015 03:56 PM
ME221 Now has Autotune and Long Term Fuel Trim Tables Motorsport-Electronics ECUs and Tuning 0 09-05-2015 09:02 AM


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 07:04 AM.