Engine not firing after sitting for half year without battery connected - 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 01-19-2013, 02:08 AM   #1
Newb
Thread Starter
 
Join Date: Jul 2009
Location: Hong Kong
Posts: 42
Total Cats: 1
Unhappy Engine not firing after sitting for half year without battery connected

I have a 90-93 mspnp with COP modified, before sitting with battery connected, it starts fine without any problem, then the battery was out for half a year, a new battery installed, when starting, there is no fire, the power from mspnp is not having 12V out, ALL four toyota COP does not have fire, where should I check?, the engine fuse is good, the pnp have D14 and D16 lights on, D15 is not lighting. Any chip I need to change in mspnp?
Thanks for the help~
edwardsuen is offline   Reply With Quote
Old 01-19-2013, 05:45 PM   #2
Elite Member
iTrader: (11)
 
Join Date: Feb 2009
Posts: 2,982
Total Cats: 10
Default

Did you visually check that the spark plugs aren't firing, or just assume that this is the case because it won't start? Get a bottle of fuel stabilizer and add it to the tank with a few gallons of new gas. Then shake the **** out of the car for a while so the water lying on the bottom of the tank mixes with the gas. Unhook the fuel line under the hood of the car, disconnect the ignitor and turn the ignition on a few times to purge the gas line. Reconnect gas line and ignitor and try to start.
miatauser884 is offline   Reply With Quote
Old 01-20-2013, 10:10 AM   #3
Newb
Thread Starter
 
Join Date: Jul 2009
Location: Hong Kong
Posts: 42
Total Cats: 1
Thumbs up

Thanks, I had unscrew all spark plug out and check for spark while cranking, did not see any ignition from plug, also try holding the coil over the engine cover to search for spark, also fail, maybe it is because I am doing it in day light, I will try your suggestion in coming weekend, thanks a lot, will post result after trying..
edwardsuen is offline   Reply With Quote
Old 01-20-2013, 11:17 AM   #4
Senior Member
 
Join Date: Aug 2010
Location: Arl. Texas
Posts: 937
Total Cats: 23
Default

Have you hooked it up to a laptop and checked to see what the computer thinks or sees?

Where was it stored? Any chance of a critter chewing on something?

Check the CPS, I've read stories of them going bad often.
Miater is offline   Reply With Quote
Old 01-20-2013, 03:23 PM   #5
Newb
 
Join Date: Jan 2013
Location: cambridge ont
Posts: 1
Total Cats: 0
Default

i m interested in doing a cop conversion to my 95 miata just wondering what every one is using for this
overageteenager is offline   Reply With Quote
Old 01-20-2013, 05:30 PM   #6
Elite Member
iTrader: (13)
 
Join Date: Dec 2006
Location: Taos, New mexico
Posts: 5,701
Total Cats: 236
Default

Quote:
Originally Posted by overageteenager View Post
i m interested in doing a cop conversion to my 95 miata just wondering what every one is using for this
It's not like there's an entire 80 page thread on this already or anything.

https://www.miataturbo.net/diy-turbo...p-thread-4756/
Fireindc is offline   Reply With Quote
Old 01-20-2013, 11:24 PM   #7
Newb
Thread Starter
 
Join Date: Jul 2009
Location: Hong Kong
Posts: 42
Total Cats: 1
Default

Quote:
Originally Posted by Miater View Post
Have you hooked it up to a laptop and checked to see what the computer thinks or sees?

Where was it stored? Any chance of a critter chewing on something?

Check the CPS, I've read stories of them going bad often.
Yes, tuner studio link up to pnp without problem, all previous tune is there, the program shows cranking information fine.
I think the cam position sensor is fine, as I park on a dry surface, not much inserts will make home out from it.
Can I use a meter to test the Red wire that feed the COP? will it be high voltage?
edwardsuen is offline   Reply With Quote
Old 01-20-2013, 11:27 PM   #8
Newb
Thread Starter
 
Join Date: Jul 2009
Location: Hong Kong
Posts: 42
Total Cats: 1
Thumbs up

Quote:
Originally Posted by overageteenager View Post
i m interested in doing a cop conversion to my 95 miata just wondering what every one is using for this
COP is a great item to change to, although I did not put the car on dyno, but I felt the power and respond is much different without it. Highly recommend~
edwardsuen is offline   Reply With Quote
Old 01-22-2013, 09:51 AM   #9
Newb
Thread Starter
 
Join Date: Jul 2009
Location: Hong Kong
Posts: 42
Total Cats: 1
Default

Started! Problem solved.
edwardsuen is offline   Reply With Quote
Old 01-22-2013, 10:01 AM   #10
Senior Member
 
Join Date: Mar 2006
Location: Schwarzenberg, Germany
Posts: 1,497
Total Cats: 81
Default

No, please don't tell us any more about what the problem was ....
Zaphod is offline   Reply With Quote
Old 01-22-2013, 10:44 AM   #11
Boost Czar
iTrader: (61)
 
Braineack's Avatar
 
Join Date: May 2005
Location: Chantilly, VA
Posts: 72,809
Total Cats: 1,780
Default

+1. dont tell us solution.
Braineack is offline   Reply With Quote
Old 01-22-2013, 10:50 AM   #12
Newb
Thread Starter
 
Join Date: Jul 2009
Location: Hong Kong
Posts: 42
Total Cats: 1
Default

I check out the mspnp for lose wiring, use a meter to check the 12V ignition power, connect a external tachometer using the 12V, after move here and there, found the tach is having lights and give beep self checking sound, Boy, the 12V sudden have juice coming back, turn the ignition, starts right up!!
edwardsuen is offline   Reply With Quote
Old 01-22-2013, 10:57 AM   #13
Boost Czar
iTrader: (61)
 
Braineack's Avatar
 
Join Date: May 2005
Location: Chantilly, VA
Posts: 72,809
Total Cats: 1,780
Default

so basically, if i can read your sanscript correctly, you jiggled wires around and it started working?
Braineack is offline   Reply With Quote
Old 01-22-2013, 11:09 AM   #14
Newb
Thread Starter
 
Join Date: Jul 2009
Location: Hong Kong
Posts: 42
Total Cats: 1
Default

Yes, but even me don't know which part cause it to having contacts again, since every part looks secure without loose feelings~
Just Fish~


Attached Thumbnails
Engine not firing after sitting for half year without battery connected-imag0750.jpg   Engine not firing after sitting for half year without battery connected-imag0751.jpg   Engine not firing after sitting for half year without battery connected-imag0754.jpg  

Last edited by edwardsuen; 01-22-2013 at 11:31 AM.
edwardsuen is offline   Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
Prepping my '95 for track asmasm Build Threads 82 05-26-2016 05:37 PM
3rd Time's a Charm...hopefully. zephyrusaurai Meet and Greet 2 09-28-2015 11:59 PM
wiring wideband ground to battery terminal btabor ECUs and Tuning 10 09-28-2015 06:33 PM
Another Alternator thread ihiryu General Miata Chat 9 09-28-2015 11:22 AM
New here, saying hi, here's what I'm workin with. SuperSneakySecretSquirrel Meet and Greet 5 09-06-2015 09:30 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 12:25 AM.