[Miata] High RPM miss

[Larry Alster]

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)
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