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Old 05-29-2010, 06:24 AM   #1
reefadude
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how to change a cam sensor on a 1.8tdci

hi there if anyone can help, is there a special way to change a cam sensor on a focus 1.8tdci or is it just a straight swap?


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Old 05-29-2010, 07:28 AM   #2
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Is this to try and solve the problems in this<< http://www.focusfanatics.com/forum/showthread.php?t=232561>> thread?
By the way- it appears to be a straight swap.

I've also found this which might be of help:

Ford Focus and Mondeo 1.8 2.0 TDCi 2000 - 2003

Problem: Engine hard to start, lack of power, rough idling etc.

Solution: A common problem has been identified with the above models and an insufficient signal from the camshaft postion sensor (CPS). The fault code P0340 may have been triggered which relates to the CPS. A revised wiring harness / sensor should be installed which increases the sensor signal from 5 volts to 12 volts. The increase in voltage will provide an improved signal from the sensor.
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Old 05-29-2010, 08:34 AM   #3
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yeah a few people have suggested the cam sensor maybe my problem so i thought id try the cheapest first....
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Old 05-29-2010, 08:50 AM   #4
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OOo revised wiring harness. I'd like to see what that was. It might simply be an added ground wire going from the body to the head of the engine. Maybe not though since the voltage increase is so much. Definitely get that as well, it would stink to put in a new CPS and not get any benefit because part of the problem was the wiring harness.

I wish I could tell you how to do it. CPS's are typically just magnetic sensors, so bolt-off, bolt-on. However, it could potentially be different on a diesel. If there's somewhere you can look at the part, that would be helpful. A manual would really be helpful as well. I'd say there's an 80% chance that it's very simple to change.
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Old 05-29-2010, 09:04 AM   #5
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Here's some more info that might explain the changes to the CPS:

TECHNICAL SERVICE BULLETIN No.69/2003
Car and Light/Medium Commercial 28.05.2003


Section: 303-04

Model: Mondeo 2001 (Build Date: 10/00 - 01.06.2003) (Build Code: YY - 3Y) (Engine: 2.0L DuraTorq-TDCi)
Focus 1999 (Build Date: 04.08.2002 - 23.04.2003) (Build Code: 2P - 3E) (Engine: 1.8L DuraTorq-TDCi)
Transit/Tourneo Connect 2002.5 (Build Date: 06/02 - 15.05.2003) (Build Code: 2U - 3L) (Engine: 1.8L DuraTorq-TDCi)
Transit 2000.5-Front wheel drive (Build Date: 01/00 - 30.06.2003) (Build Code: YB - 3Y) (Engine: 2.0L DuraTorq-TDCi)

Markets: All

Subject: Poor power; delayed accelerator response and/or rough idle, engine hard or impossible to start

Summary

Should a customer express concern over poor power; occasional delayed accelerator response and/or rough idle and the engine is hard or impossible to start, the probable cause is insufficient signal from the camshaft position sensor (CMP sensor). Some vehicles may also have diagnostic trouble code (DTC) 0340 set. To rectify the concern, the signal at the CMP sensor should be increased from 5 volts to 12 volts using a CMP sensor additional wiring harness.
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