[Miata] High RPM miss

[Larry Alster]

http://www.miata.net/garage/faultcodes.html


Larry
 
White Knight      1991 Crystal White   #99 CSP
Silver Bullet        1992 Silverstone     #17 SM2  FM I+ Turbo
Honey B             1992 Sunburst Yellow #99 SM2L  JR Supercharger
Whooosh           2004 Titanium Mazdaspeed MX-5
 
LowCountry Miata  http://www.lowcountrymiataclub.net
Masters Miata
RAGS 074
----- Original Message ----- 
From: "Ron Zander" <rzander01 at comcast.net>
To: <miata at realbig.com>
Sent: Monday, August 06, 2007 9:20 PM
Subject: Re: [Miata] High RPM miss


>I wasn't aware a '92 did store engine codes. How do I get the code  
> from it?
> I'll agree it could be the filter but it is so predictable and  
> exactly dead nuts on at 6200 rpm, it really feels like spark. Of  
> course a fuel filter is a helluva lot cheaper.
> Now about the codes.....
> 
> 
> On Aug 6, 2007, at 6:10 PM, Larry Alster wrote:
> 
>> Well the first thing is to check the engine code that is stored by  
>> the event.
>>
>> 2nd, change the fuel filter.  Your saying it was changed at 92k  
>> like it's a reasonable amount of time ago.  Your talking more than  
>> 40k ago.  The manual for the 2004 Miata says change the fuel filter  
>> every 25k.
>>
>>
>> Larry
>>
>> White Knight      1991 Crystal White   #99 CSP
>> Silver Bullet        1992 Silverstone     #17 SM2  FM I+ Turbo
>> Honey B             1992 Sunburst Yellow #99 SM2L  JR Supercharger
>> Whooosh           2004 Titanium Mazdaspeed MX-5
>>
>> LowCountry Miata  http://www.lowcountrymiataclub.net
>> Masters Miata
>> RAGS 074
>> ----- Original Message ----- From: <rzander01 at comcast.net>
>> To: <miata at realbig.com>
>> Sent: Monday, August 06, 2007 8:57 PM
>> Subject: [Miata] High RPM miss
>>
>>
>>> I tried to post earlier but I don't think it made it here so I'll  
>>> try again.
>>>
>>> My '92 with 135k has a real bad miss at 6200 rpm. It feels just  
>>> like a rev limiter on a late model car, it drops spark and will  
>>> not go past 6200 rpm. The engine light flashes when it's doing  
>>> this too. I changed plug wires last weekend but that didn't help.  
>>> It used to only do it once in a while but now it's pretty much  
>>> reproducible. It runs perfectly below that rpm and pull hard right  
>>> up to 6200, then BAM it drops spark and flashes the check engine.  
>>> Anyone have any ideas? I'm leaning towards weak coil packs at this  
>>> point.
>>>
>>> The fuel filter was changed at about 92k but it really feels like  
>>> spark.
>>>
>>> Thanks,
>>> Ron
>>> Rosa ('92 Red with a nasty cough at 6200 rpm)
>>> _______________________________________________
>>> Miata mailing list
>>> Miata at list.realbig.com
>>> http://list.realbig.com/mailman/listinfo/miata
>>
> 
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