Since the list is pretty quiet, I've got a not a Miata question but a
Mazda question:
The Car: 2004 Mazda 6 w/ 5 speed auto
The Problem: In 5th gear, after torque converter lockup and at speed
>40 mph...when accelerating with enough throttle to accelerate but not
enough to unlock the torque converter, the engine will miss/hesitate.
It might take a few seconds to start missing but it usually will comply.
What I've Done: It is the wife's car and she claims to have a good
relationship with the local dealer service department where the car goes
regularly for oil change, reg. service, etc. I carefully explained to
the Service Writer (yes, I know about them) exactly what the problem
was. A day and many hands full of cash later, they found a split in the
snorkel between the AFM and throttle body that was said to be leaking
unmeasured air in. Drove home and the time and cash had no (zero)
improvement. Took the car back and again described exactly what to do
to make it miss. The SW called to say that the car showed no "codes"
and that they could find nothing wrong...again.
My Question: There are many more knowledgeable people than I on this
list (esp.regarding ECU stuff); to those I ask this question: Can a
diagnostic device or even a laptop be connected to the OBDII port on the
car to see in real time what is going on with the engine? The SW didn't
seem to know if this was possible so, at this time I'm looking elsewhere
for a mechanic. It seems that this should be easy to do but since my
'90 Miata, with which I am very familiar, has never needed, and probably
doesn't even do, this type of diagnosis, I don't know if it is
possible. Is it?
Sorry for the length but as I said, things have been pretty quiet on the
power list of late so I hope offense is not taken.
Ralph Alder
Team Orphan Aerodyne
Orange Co, CA
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