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Thermo-Contact
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Posted by Draken [Email] (more from Draken) on Sun, 22 May 2005 15:50:03 Share Post by Email
In Reply to: sensor between 1st & 2nd fuel injectors??? 1987 C900, Christian, Sun, 22 May 2005 13:37:47
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On your '87 that'd be part number 75 06 322: Thermo-Contact.

It's a coolant temperature sensor. It's mounted in the intake manifold. It measures the engine coolant temperature in the cylinder head. It sends engine temp info to the LH (fuel injection system) control unit.

If there were a break in the signal from this sensor, the engine control unit would assume a constant engine temperature of 68 degrees F in your year car (later models assume 113 degrees F).

See the Bentley C900 16-valve manual for directions on how to test if this part is working properly.

If the sensor is faulty you'll notice an increase in idle speed.

Hope this helps. Good luck.

posted by 66.81.10...

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