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2001 Mazda Miata OBD 2



Welcome to our question and answer forum. Our Technicians and members answer over 10,000 free and donated auto repair questions every month. Asking a question is free of charge, just sign up to our forum. However if you elect to donate a small sum we will guarantee an answer from one of our 2Carpros.com certified technicians. Due to the nature of car repair problems it sometimes requires some dialog between our technicians and you to get your problem solved. 100% of the donation is awarded to the technicians helping you, questions with donations are answered as promptly as possible . If you are unsatisfied with our answer we will gladly return your donation.
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Posted at Sun Sep 07, 2008 9:24 pm
By olddrum1, Have Donated
(6) Give Feedback | Votes: 0
   
Engine Performance problem
2001 Mazda Miata 4 cyl Two Wheel Drive Manual 40000 miles
----------------------------------------------------------------
My Miata has been stalling and the check engine light has been coming on. Its like it is running on two cylinders. This started on day after going to carwash. I would give codes but cannot find OBD2 connection underdash. Once RPMs are up a little the other one or two cylinders kick in and the car runs fine. The check engine lights blinks sometimes, somtimes stays on and sometimes goes off. It is on now.
 
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Posted at Mon Sep 08, 2008 2:24 am
By mhpautos, Certified 2CarPros Master Technician
Reputation: 515.6Reputation: 515.6Reputation: 515.6Reputation: 515.6Reputation: 515.6Reputation: 515.6Reputation: 515.6Reputation: 515.6Reputation: 515.6Reputation: 515.6Reputation: 515.6Reputation: 515.6Reputation: 515.6Reputation: 515.6Reputation: 515.6Reputation: 515.6Reputation: 515.6Reputation: 515.6Reputation: 515.6Reputation: 515.6Reputation: 515.6Reputation: 515.6Reputation: 515.6Reputation: 515.6Reputation: 515.6Reputation: 515.6 (516) Give Feedback | Votes: 11
   
Hi there,

Thank you for the donation.

According to my data base,the data link should be under the left hand side of the instrument panel, have a look and if you get the codes post them here for more information.

Mark (mhpautos)
 
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Posted at Mon Sep 08, 2008 10:21 am
By olddrum1, Have Donated
(6) Give Feedback | Votes: 0
   
Error codes on the Miata are

po300 mod$10 172
Random/multiple cylinder misfire detected

po420 Mod$10 272
catalyst efficiency below threshhold Bank 1
 
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Posted at Tue Sep 09, 2008 2:55 pm
By mhpautos, Certified 2CarPros Master Technician
Reputation: 515.6Reputation: 515.6Reputation: 515.6Reputation: 515.6Reputation: 515.6Reputation: 515.6Reputation: 515.6Reputation: 515.6Reputation: 515.6Reputation: 515.6Reputation: 515.6Reputation: 515.6Reputation: 515.6Reputation: 515.6Reputation: 515.6Reputation: 515.6Reputation: 515.6Reputation: 515.6Reputation: 515.6Reputation: 515.6Reputation: 515.6Reputation: 515.6Reputation: 515.6Reputation: 515.6Reputation: 515.6Reputation: 515.6 (516) Give Feedback | Votes: 11
   
Hi there,

i have been away for a day, so i will respond with some information when i get access to the data base later today.

Mark (mhpautos)
 
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Posted at Tue Sep 09, 2008 7:10 pm
By olddrum1, Have Donated
(6) Give Feedback | Votes: 0
   
I reset the codes last night and my Daughter drove into school and home, about twenty miles. The codes did not happen again. I wonder if I am getting something wet that should not be getting wet?
 
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Posted at Sat Sep 20, 2008 10:11 pm
By olddrum1, Have Donated
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I apologize for not following up but I have started getting the above mentioned codes again without any water present. Its like the car is trying to flood or that it is only running on two cylinders for a couple of minutes.
 
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Posted at Mon Sep 29, 2008 10:17 am
By olddrum1, Have Donated
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I have not recieved a reply to my question on the Mazada Miata with the code problems. What should I do? I have supplied the codes.
 
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Posted at Wed Oct 08, 2008 8:39 am
By olddrum1, Have Donated
(6) Give Feedback | Votes: 0
   
I made a donation and provided codes for the problem I am having with the Miata. Why did I not get a reply? Have I made an error? With whom should I contact for a reply?
 
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Posted at Wed Oct 08, 2008 1:31 pm
By mhpautos, Certified 2CarPros Master Technician
Reputation: 515.6Reputation: 515.6Reputation: 515.6Reputation: 515.6Reputation: 515.6Reputation: 515.6Reputation: 515.6Reputation: 515.6Reputation: 515.6Reputation: 515.6Reputation: 515.6Reputation: 515.6Reputation: 515.6Reputation: 515.6Reputation: 515.6Reputation: 515.6Reputation: 515.6Reputation: 515.6Reputation: 515.6Reputation: 515.6Reputation: 515.6Reputation: 515.6Reputation: 515.6Reputation: 515.6Reputation: 515.6Reputation: 515.6 (516) Give Feedback | Votes: 11
   
Hi there,

sorry about the delay but i have had to deal with the death of my mother this week, i will respond ASAP.

With apologies,

Mark (mhpautos)
 
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Posted at Thu Oct 09, 2008 6:24 am
By 2CarPro Jack, Certified ASE Technician
Reputation: 683.7Reputation: 683.7Reputation: 683.7Reputation: 683.7Reputation: 683.7Reputation: 683.7Reputation: 683.7Reputation: 683.7Reputation: 683.7Reputation: 683.7Reputation: 683.7Reputation: 683.7Reputation: 683.7Reputation: 683.7Reputation: 683.7Reputation: 683.7Reputation: 683.7Reputation: 683.7Reputation: 683.7Reputation: 683.7Reputation: 683.7Reputation: 683.7Reputation: 683.7Reputation: 683.7Reputation: 683.7Reputation: 683.7Reputation: 683.7Reputation: 683.7Reputation: 683.7Reputation: 683.7Reputation: 683.7Reputation: 683.7Reputation: 683.7Reputation: 683.7 (684) Give Feedback | Votes: 80
   
Check for water contamination at the plugs/coils/wires.The cat efficiency code is most likely due to a bad cat converter. Sorry for the delay
 
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