Alternator not charging//battery and alt are good - Miata Turbo Forum - Boost cars, acquire cats.

Welcome to Miataturbo.net   Members
 


General Miata Chat A place to talk about anything Miata

Reply
 
 
 
LinkBack Thread Tools
Old 12-03-2015, 10:35 PM   #1
Newb
Thread Starter
 
Join Date: Jan 2013
Posts: 37
Total Cats: -1
Default Alternator not charging//battery and alt are good

helloo..so heres the run down..

my turbo miata with a MSPNP2 ecu is only getting 11 or so volts..its running funny and it killed my battery but the most distinctive thing it does is when i give it gas (free rev) it passes the point of idle and just dies instead of returning to idle. it will idle okay otherwise..

now, ive replaced the alternator (previous bench tested bad) and still am getting the same results..

this all started happening after some faulty wiring for the turn signals and headlights ground out and burned the wires connected to the positive terminal..

any ideas?
itsMikey is offline   Reply With Quote
Old 12-04-2015, 08:56 AM   #2
Boost Czar
iTrader: (61)
 
Braineack's Avatar
 
Join Date: May 2005
Location: Chantilly, VA
Posts: 72,872
Total Cats: 1,790
Default

what year miata?
Braineack is offline   Reply With Quote
Old 12-04-2015, 10:05 AM   #3
SADFab Destructive Testing Engineer
iTrader: (5)
 
aidandj's Avatar
 
Join Date: Apr 2014
Location: Beaverton, USA
Posts: 17,997
Total Cats: 1,462
Default

Some shitty parts store alts have been known to be DOA. Have it checked.

curly has some personal experience with that one.
aidandj is offline   Reply With Quote
Old 12-04-2015, 11:15 AM   #4
Cpt. Slow
iTrader: (25)
 
curly's Avatar
 
Join Date: Oct 2005
Location: Oregon City, OR
Posts: 12,107
Total Cats: 518
Default

Yup, we can't do **** without the year of your car, big difference.

And yes, always have a parts store alternator bench tested directly out of the box before leaving the store. I'd say the same about batteries, but I don't think I've actually heard of one of them being bad.
curly is offline   Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
Goingnowherefast's Going Somewhere Fast Turbo Miata Build Goingnowherefast DIY Turbo Discussion 64 09-29-2017 05:45 AM
Turbo the miata, or just buy a C5Z? dohc5spd2dr General Miata Chat 87 12-16-2015 09:47 PM
.25mm Crank wear, bad for boost? Mr626 Engine Performance 2 12-16-2015 02:43 PM
ECU FS: DiyPnP and VVTuner GraemeD Miata parts for sale/trade 5 12-05-2015 07:28 PM
Miata NA/NB Part out ITOzann Miata parts for sale/trade 2 11-17-2015 09:49 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 07:12 PM.