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Coupes & Convertibles Mazda Miata Mazda MX-5 Miata Starting and Stalling Problems
58 messages, Last post on Nov 09, 2009 at 3:43 AM
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My Miata keeps stalling while I'm driving 60+ miles/hr. Nobody can figure out what is wrong. Mazda isn't claiming up to what is wrong. Help!!!
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| I have a 99 Miata, 5-speed and am having a problem. The first symptom was when the car would not start a few times. It would just keep cranking. At first, I thought it might be the fuel pump, but then it did start just fine. Then while driving, the car will erratically lose power. The rpm's will drop down to almost nothing and then spike back up. It was fine for a few more minutes and then just completely lost power and shut down and would not start up again. I had the car towed to my house and tried starting it the next day and it started right up. I replaced the fuel filter as a possible remedy and took it out for a test drive and it was doing the same power-loss thing. It seems to do it most while driving at highway speeds. I drove the car to work this morning, 30 min. drive, and it was fine until the end when it started doing the power loss, even while the car was sitting at a stop light. I barely made it to work. Any ideas??? | |
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Replying to: caledelaney (Mar 19, 2007 5:51 am) |
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Hi, We just bought a 2001 Miata with an automatic (a compromise demanded by girlfriend), and I am having the exact same problems with stalling as are jerseygirl137 and caledelaney. Miata.net has some discussion about "idle dropping" and Mazda's seeming unwillingness to acknowledge this problem, but no definitive solutions. My dealer mechanic is not sure and says we must go down the list replacing this and that beginning with the cam sensor, then the fuel pump, and then the coil. And even then he cannot say if the problem will be solved. Has anyone else had this problem, and even better, how has it been resolved? If you know any talented Miataphiles or mechanics who might be able to help, please forward them these emails. Please help, we love our Miata, but this problem might literally kill us on Atlanta highways filled with 80 mph tailgating SUVs and semis. Thanx for your help - J
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My engine light was on. Called the Madaz dealer and for $85 he would tell me why. I visited Auto Zone and he checked it and told me I had a omissions leak or something like that, but it was not a problem to drive. I found a repair service near my work and they they ck'd out the car and told me it was a loose gas cap, but that I would have to had taken to them to have the light turned off. They charged me for $37.00. Does this sound legitimate? Would I have to have had them turn the light off?
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I wondering if anyone has any luck fixing your miatas. I have the same problem. Engine stalling after engine gets to operating temp. My car has 169k miles just bought car. Runs great except for this intermitant problem. Replaced fuel pump and filter. Still have problem. Replaced crank position sensor. Let car idle with a/c on to get engine hot. Stalled in 30 minutes. Could not restart. After letting car cool down. Started. Sounds very simular to Jerseygirl. If anyone has come up with any solutions. I'm going to fix this car. And I will post my finding. Thanks in advance Robert email uniboy netzero.net
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Replying to: jracer (Apr 12, 2007 7:56 am) 
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Replying to: jracer (Apr 12, 2007 7:56 am) I also had this problem and after much research by my mechanic (mainly) and by me (secondary) we figured out what the problem was. It is the Cam Position Sensor (CPS) and it appears to be a common problem. Many websites have information on this and several of them refer to Miata.net where you can find all kinds of Miata-based information. Here is a link of what someone wrote about our same problem: http://grassrootsmotorsports.com/news/082005/cam-position-sensor.php The part is roughly 80-100 dollars although a mechanic may charge more for it (mark-up). Labor isn't tough and should maybe run you another 80-120 dollars. Hope this helps. Cheers, Paul |
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Replying to: jerseygirl137 (Jan 19, 2007 3:19 pm) Your problem is the Cam Position Sensor (CPS). It probably needs replacement. The part should cost somewhere around $100 and labor about the same. See my other post to another person on this same message list for more info. Cheers and good luck, Paul |
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