Last post on Sep 20, 2013 at 1:42 PM
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Mazda MX-5 Miata, Lights, Electrical, Convertible
#21 of 72 Alternator ???
Aug 13, 2008 (2:56 am)
I was driving down the road about 75 MPH for about 2hrs when the dash went out. No warnings ,nothing. All gauges were gone radio,tach,temphorn,lights,turn signals to mention a few. Stopped at rest stop and shut it off . Would not restart. Battery dead. Had it towed mechanic tested battery and alternator both checked OK. Drove the car back and it did it again . Dead battery etc. Recharged battery and it works ok. I think its the alternator . The time to charge the battery gave time for the alt. to cool (?). I have been told maybe ground issues,bad ignition switch etc. I have had this car only a few months and I dont have them figured out yet. Any thoughts would be appreciated.
#22 of 72 2004 Mazda Miata speed
Aug 23, 2008 (9:13 pm)
Car died...just like that...no reason. Cruising through my school parking lot, and about to corner in first and...car died. All electric was out. Nada. Called AAA.
Guy couldn't find out polarity of battery to jumpstart it. While he is looking, the trunk light suddenly goes on. Whoa. I've only had the car a few weeks. Car had only been on for a few minutes. It has only 11,000 miles, garage kept, super clean.
Total enigma. I've noted others stating that they've had their car suddenly die, and come back to life later. The AAA tow truck guy did nothing. His battery was sitting near my battery, but he never hooked it up. 45 minutes after dying, car started as if nothing was wrong. Help. I don't want this to happen on a highway or other bad location.
#23 of 72 Transmission heat sensor
Sep 22, 2008 (8:19 am)
According to the check engine code, my 1997 MX 5 (M edition) automatic tranny, has a bad heat sensor. Anyone familiar with these, and how involved is the replacement procedure?
#24 of 72 Re: Transmission heat sensor [natedog1]
Sep 22, 2008 (10:41 am)
Sorry, no, never even heard of that part.
#25 of 72 Spark Plug Wires
Sep 22, 2008 (10:45 am)
I was reminded how these really don't last all that long...
My engine started misfiring - BADLY. It sputtered at certain RPM like I've never seen.
First I checked the timing, but that was OK. I thought it might have been knocked out of the right timing setting since my Miata was hit last week (again).
Then I replaced the wires, and sure enough, they basically fell apart when I was taking the old ones out. Half of the connector came off on the spark plug, even though I had used boot grease.
Replaced those, and the spark plugs as well, and she's running like new.
#26 of 72 Re: 92 Mazda Miata with electrical issues [shebalynnx]
Dec 04, 2008 (11:45 am)
My 1992 has the exact same issue. Did you fix yours? How?
fyi: regulator is integrated into the alternator
I replaced both the batt & alt. also the cooling fan relay
have had both the new batt & alt bench tested twice. both good
#27 of 72 Re: 92 Mazda Miata with electrical issues [shebalynnx]
Dec 17, 2008 (7:38 pm)
Were you able to solve this problem? I don't have the exact problem but similar. Mine will be dead after a week or two of not using. Even keeping an trickle charger on it. Had it looked at by a Mazda dealer and twice by a Japanese auto specialist. I'm ready to give up since they can't find the problem.
#28 of 72 1992 Miata hummin from engine killing battery
Mar 16, 2009 (11:05 am)
I wanted to know what the rectangular box is on the passagers side, engine compartment, that is located closest to the firewall rather than the very front of the car. I looks like there are some brake lines running to it, but its not the master cylinder (opposite side), the humming is electrica because it ran my battery dead, I can't imagine what it could be.
#29 of 72 Re: interior lights not working [cpico]
Mar 23, 2009 (6:06 pm)
Hey you need to look at the RECALLS on the 1990 Miata's that in one of the recalls, call you closes MAZDA SALE'S and if it hasnt been fixed yet they HAVE TOO do it for FREE
#30 of 72 Re: Undiagnosed electrical problem [boerne]
May 15, 2009 (7:12 am)
I recently had the exact same problem. The battery indicator light went on. I stopped at a garage and had the battery and alternator checked, they were both okay. I've checked all the fuses and they are also fine. The battery indicator light went out at lower rpms, but would come back on at higher rpms. The car shuddered, with a loss of power to the cruise control/stereo/cigar lighter. The air bag indicator light flashed briefly, but has not flashed since. The car continues to start and run properly. Any answers to what should be checked next? Thanks