Last post on Sep 20, 2013 at 5:00 PM
You are in the Mazda Miata
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Mazda MX-5 Miata, Engine, Convertible
#91 of 100 Re: 1999 Miata rough starting, surging at idle [mike2016]
Oct 19, 2012 (5:36 pm)
Sounds like a bad crank,cam sensor.
#92 of 100 Re: Hard time starting on hot days. [robinlvh]
Mar 08, 2013 (10:33 pm)
My MONEY IS ON A BAD CAT!!! 99.9% believe its exhaust related (it runs great at start-up/evening. WHY? The little critters C-O-L-D, Hello?!!! Could be excess Carbon in the Intake manifold--the 99's-Y2Ks were infamous for thath was cured in 2001. Also, check yer CAT. My 91 had a blocked CAT and it would fire up great in the Morning but would choke & sputter when she got heated up. Doesn't sound like a SHORT because the problem is consistant---it doesnt manifest itself in the mornings/at start-up BUT when heated up?!!!
#96 of 100 94 Miata won't start
Aug 25, 2012 (3:22 pm)
After driving for about 20 minutes, the engine stopped. I pulled over and restarted the car with no problem.
2 days later, after driving for 15-20 minutes, I stopped to put air in the tires. The car started with no trouble but shut off after about 2 blocks and would not restart.
We have now replaced the fuel filter, fuel pump and battery. The engine turns with no trouble but will not fire.
The fule seems to be getting all the way to engine but no further.
Is there a problem with the EFI?
#97 of 100 Re: 94 Miata won't start [rgcolwell]
Aug 27, 2012 (6:52 am)
They say "spark or fuel".
If the fuel supply is good, what about the spark?
Miatas of that vintage eat plug wire sets every 30k miles or so. I owned mine long enough that I had to change them twice.
#98 of 100 Miata dies when hot
Mar 25, 2013 (12:01 pm)
Being an old guy the old style of coil used to cause a car to die once the coil got hot. Then it might or might not restart and run rough. If this happens to a split coil engine like the Miata,and most new cars, then the car would run rought, sence it is running on only two cyl. My problem is that my 92 miata that my wife drives will not start. So having read all the post I guess I will go out and buy a edmund book for my car and get a CPS for my car. Thanks for all the posts.
#99 of 100 Re: Miata dies when hot [tonys92miata]
Mar 25, 2013 (1:28 pm)
I have a 2000 miata and 2 years ago had to replace the coils. Was a pricy bill but I haven't had any issues since. At the time I had to do the exhaust as well (don't try to buy aftermarker exhaust) which was another pricy bill but when all was said and done I have had no issues since. Run it winter and summer. Love it.
#100 of 100 Re: 1999 miata hard starting when hot [sirbrack]
Sep 20, 2013 (5:00 pm)
Sorry guys for those who paid so much for the cam sensor especially the installation which is only one screw.That's it!!! A hundred dollars to install a cam sensor is like murder.I installed mine and I am not a mechanic at all. This is the easiest fix in a Miata.