No tach output. Please help. - 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 09-07-2009, 02:45 PM   #1
Newb
Thread Starter
 
Join Date: May 2009
Posts: 24
Total Cats: 0
Exclamation No tach output. Please help.

I have a 90 Miata with a ms1 standalone, greddy turbo, 440cc injectors, adj. fpr. I started my car the other day with the ms for the first time with a new .msq borrowed from someone else that has a similar setup. The car started right away, I drove it around the neighborhood until it was warm, turned the car off, went to restart it and nothing. The next day I went back outside tried to start the car and nothing happened, so I reloaded the same .msq file and the car started back up. I again drove it around and turned the car off and now it won't start again. I plugged the factory ecu back in and the car will turn over and run for 3-4 sec. and then dies. It now doesn't have any tack output on the dash, and the megatune doesn't show any rmp except for a second right after you are done cranking. I am assuming that the reason the car will not run is because there is no tack output. Does anyone have any idea what may be wrong or how to fix this.

Thanks, Tyler
Attached Files
File Type: msq goodmsq.msq (34.5 KB, 68 views)
File Type: xls datalog200909051329.xls (1.11 MB, 62 views)
messinatyler is offline   Reply With Quote
Old 09-07-2009, 03:02 PM   #2
Elite Member
iTrader: (1)
 
Join Date: Jun 2006
Location: Warrington/Birmingham
Posts: 2,658
Total Cats: 39
Default

You've used someone else's msq which had incorrect dwell settings for your coil, (either inverted or not, or too high), and you've killed your coilpack/igniter

place you palm on on your head hard, then go and buy a new igniter and get the correct settings for your car.

EDIT: just looked at your .msq, spark output is set to inverted I'd put a bloody healthy bet that you've not got/done the updated spark mod...
richyvrlimited is offline   Reply With Quote
Old 09-07-2009, 03:38 PM   #3
Newb
Thread Starter
 
Join Date: May 2009
Posts: 24
Total Cats: 0
Default

Thanks for your reply, i'll try to get a new igniter.
messinatyler is offline   Reply With Quote
Old 09-07-2009, 03:48 PM   #4
Boost Czar
iTrader: (61)
 
Braineack's Avatar
 
Join Date: May 2005
Location: Chantilly, VA
Posts: 72,860
Total Cats: 1,788
Default

plus it probably doesn't have good settings for your injectors so you cannot make a good hot start happen.
Braineack is offline   Reply With Quote
Old 09-07-2009, 03:51 PM   #5
Newb
Thread Starter
 
Join Date: May 2009
Posts: 24
Total Cats: 0
Default

Yeah, I was just trying to get a close .msq to get my car started for a good baseline to adjust from, guess I didn't do enough research.
messinatyler is offline   Reply With Quote
Old 09-07-2009, 10:34 PM   #6
Senior Member
iTrader: (14)
 
Join Date: Aug 2008
Location: Tinley Park, IL
Posts: 1,488
Total Cats: 0
Default

There is a lot of stuff that doesn't look right in that msq. Cranking rpm, fan temps, mapdot kpa threshold, dwell to name a few along with what richyvrlimited and The Boost Czar mentioned. Plus in the log your battery voltage drops severely where it has all the spikes at the end. 11, 10, even 9 volts.

Do you have a bad connection somewhere?

Last edited by lordrigamus; 09-07-2009 at 10:47 PM.
lordrigamus is offline   Reply With Quote
Old 09-08-2009, 01:33 AM   #7
Newb
Thread Starter
 
Join Date: May 2009
Posts: 24
Total Cats: 0
Default

I tested the coil packs and they are firing, but not very well, which leads me to believe that the ignitor has gone bad. Thats why the tack isn't working and the car won't stay running. I guess I shouldn't have borrowed someone elses msq before doing a little more research. So now I need a new ignitor and a new msq.
messinatyler is offline   Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
Need help - Stock Balancer and Fastforward overlay pulleys Frank_and_Beans Supercharger Discussion 13 09-12-2016 09:17 PM
My solution for Oiltemp and Oilpressure input into Megasuirt (MS3) Zaphod MEGAsquirt 41 01-24-2016 01:25 PM
Bad head gasket or ? shooterschmidty Engine Performance 8 09-30-2015 11:28 PM
Are my coils failing? viriiguy General Miata Chat 5 09-28-2015 08:39 PM
how to Make 94-95 tach work with MSPNP2 JacksonRacingEngines Engine Performance 10 09-10-2015 10:52 AM


Tags
.msq, ms, not starting, tack

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 06:11 AM.