I had a heat induced problem with the Miata Friday on my drive home
from work.
Sudden loss of power and check engine light put me over on the
shoulder. The car had no power and wouldn't respond to accelerator
activity at all. On the flat it pulled itself in a lurching motion, but
bucked until it stalled trying to go up any grade. After sitting a bit
and shutting down the AC and other power accessories it was restored to
normal running. I got most of the way home when it happened again.
Again I had to let it sit a spell and chill. Then drove home.
Saturday morning I followed some sage advice and ordered a set of wires
and a coil at Advance. Then I went on to the concours judges meeting
without problem. When that was over I went to a friend's shop and he
read the code — Cam Position Sensor A and Accelerator Position were the
two codes it had recorded.
He said he'd never seen that code, but thought it would be easy to find
the part, so off we charged (in his Sunbeam/Talbot). ORiley's didn't
have one, so we went to the local dealership. They didn't have one, but
ordered one for us. We then went to Advance and scored a new sensor for
about $70 shop price. After a burger and shake we dropped it in and the
car hasn't missed a beat since.
It seems 2001 and later with the VIC system has a known history of heat
soak problems with this sensor. I found this interesting thread about
the problem. I'm sure it would have seemed much worse if my car had
forced induction. Alas, I have that going for me : (
So if any of you with 2001+ models find yourself on the side of the
road with a bucking wimp, spit on the cam position sensor to cool it
and find yourself a FLAPS. (oh, I had to pay in advance for the coil
and wires, so I can't cancel the order, but have to wait for them to
arrive so I can return them) - Roseann Rosanadana was right!
http://forum.miata.net/vb/showthread.php?t=421674
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