Crankshaft Position Sensor

[Jon Pennington]

Andris Laivins said:

> I don't know of any Al flywheels that have aluminum teeth. Do you know
> what  a starter would do to them?

I don't think I said that they were aluminum, I think I said they weren't
iron.:)

> Aluminum flywheels are usually an
> aluminum  plate with a steel/iron/Cromo ring gear bolted to the outside.

Fidanza's flywheel page doesn't seem to state what theirs are made of,
except that their "ring gears are heat treated for durability. They are
heated, pressed on and then secured using grade 10 fasteners."

  http://www.aluminumflywheels.com/flywheels.html

> CPS doesn't see  motion, it registers the presence of a ferrous metal in
> front of it.  (if it's a  magnetic sensor)  In any case, having a light
> flywheel should have zero effect  on its functionality.

*If* the Fidanza ring gear were made of a highly ferrous metal, I would
agree 100%.  The CPS failing to register motion, though, is a very common
problem, especially with Fidanza wheels.  Not that Fidanza wheels are
worse than other aftermarket wheels, but they seem to be one of the most
common (probably due to price).

> [The CPS] may somehow have gotten out of whack and be too far  away or
> something to register - they require quite close tolerances to get a
> reading.

Exactly.  We need to figure this out and document it.  The original poster
probably aught to replace his CPS, first, though.  CarParts.com lists a
Borg-Warner replacement sensor for $51.60.

--
-=|JP|=-        "Stew my foot and call me Susan!"

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