Question about 2004 Ford Focus

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Ive got a focus 1.6 petrol the engine managment comes on hooked it up to computer and it says the cam shaft position sensor is it a common fault and will it probley be the sensor faulty?

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Hi Smith,

This is a very common fault with most new fords. I have had to replace mine in a Mondeo MK3 ST and its only done 35000 miles. Very easy to fit as well i just searched on google and found some picks on how to fit and costs less than £20.

Cheers,

Toon.

Posted on Oct 01, 2009

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Vauxhall insignia 2.0 petrol turbo engine management light started coming on and fault reads p000b what do I change ( engine doesn't miss a beat when light comes on)


code p 000B refers to cam shaft position (CMP) actuator , exhaust/right/rear bank 1---slow response ===causes wiring---CMP actuator--ECM
this is the unit that advances the valve timing at higher rpms and will not affect the engine performance noticeably under normal engine rpms
you may see it as increased fuel consumption
However that said it is advisable to take it to an accredited service center that has experience on your make of vehicle and have the matter investigated and fixed

Oct 29, 2016 | Vauxhall Cars & Trucks

Tip

CMP - Cam shaft Position Sensor


<p><b><span>3.2) <span> </span><u>CMP - Cam shaft Position </u>(sensor)<u> </u></span></b><br /> <p><b><u><br /></u></b><br /> <p><b><span>What is it?</span></b><span><span> </span>This electrical device is very similar in concept to the crank position sensor (above) in that it detects the position of the rotation of a shaft, in this instance the cam shaft.<span> </span>It is the cam shaft signal that indicates to the ECU that cylinder one is at top dead centre at compression and in the process provides the ECU with the timing reference for fuel injection.<span> </span>The cam shaft sensor provides extra information, to that of the crank sensor, to fine tune timed events such as injection and spark delivery.</span><br /> <p><span> </span><br /> <p><b><span>Where is it located?</span></b><span> The location of this device depends on the design and age of engine.<span> </span>On many modern overhead cam shaft engines the cam shaft sensor is located either on the end, or to the side of the end, of the cam shaft housing.<span> </span>On older pushrod engines the cam sensor is found where the distributor would once have been located.<span> </span>This type sensor assembly makes use of the distributor shaft meshing directly, at its bottom end, with a gear on the cam within the engine block.<span> </span>In this respect the distributor shaft is just an extension of the cam shaft.<span> </span>On the top end of this distributor shaft is a magnetic armature.<span> </span>The cam shaft sensor, that measures the movement of this armature, is located in the cover and uses either magnetic or 'Hall effect' pickup modules.<span> </span></span><br /> <p><b><span> </span></b><br /> <p><b><span>How does it work?</span></b><span><span> </span>The sensor detects the position of a magnet or set of teeth on the gear on the end of the cam.<span> </span>An electrical waveform output signal is sent to the ECU as the cam turns.<span> </span>The cam sensor tells the ECU that cylinder 1 is at TDC on its compression stroke prior to ignition. <span> </span>The cam sensor ensures the correct timing of the fuel injection cycle.<span> </span>If the timing belt ever jumps a tooth on the cam the lack of agreement between the respective signals from the cam and crank sensors is indicated as an error condition by the ECU. </span><br /> <p><b><u><span><span> </span></span></u></b><br /> <p><b><u><span>Symptoms of faulty cam sensor</span></u></b><br /> <p><b><span>Associated OBD2 error codes DTCs: <span> </span>P0341 - P0349; P1345</span></b><br /> <p><b><span> </span></b><br /> <ul> <li><b><span>Hesitant acceleration - </span></b><span>miss-timing of fuel injection due to a faulty CMP can cause intermittent loss of power.<b></b></span></li> <li><b><span>Starting difficulty/failure.<span> </span></span></b><span>If the faulty CMP timing problems are severe they may cause the engine not fire at all, or to fire and then stall, or stall at some random time without warning.<b></b></span></li> <li><b><span>Hot engine stall and failure to restart - </span></b><span>Sometimes the fault of the CSS only manifests itself when the engine is hot.<span> </span>Over time thermal stress can cause cracking and can weaken electrical junctions within the CMP.<span> </span>The CMP may work well at cold start up but can then cause a hot running engine to stop with little chance of restart whilst the engine is still hot;<span> </span>once cooled the down the engine may readily restart and again run for a limited period until hot.</span></li></ul> <p><b><u><span>Note </span></u></b><span>The cam sensor body often protrudes into the cam shaft gallery and when it's 'o' ring seal<span> </span>becomes age hardened, engine oil may leak back into the sensor electrical socket plug connector causing errors due to interruption of signal. </span><br /> <p><b><span> </span></b><br /> <p><b><span>How to check? </span></b><span>It is not technically<b> </b>easy<b> </b>to determine that the CMP is at fault and, like the crank sensor, may require the use of an oscilloscope.<span> </span>If it is part of a sophisticated on board diagnostics system its failure may be logged as a specific error code in the ECU. Due to the variability problems with engine running are often experienced well before any error codes are set by the ECU.</span><br /> <p><span> </span><br /> <p><span><span> </span>2 pin socket (magnetic - sine wave output).<span> </span>One pin is 'ground' the other is 'signal'.<span> </span>A voltmeter set to 2 volts AC should measure a signal in the 0.2 to 2 volts range on the 'signal' pin.</span><br /> <p><span><span> </span>3 pin socket (Hall effect, magneto - square wave form output).<span> </span>One pin is 'reference' (5volts), one pin is 'ground' and the third pin is 'signal'.<span> </span>A DC voltage should be detectable in the 0.5 to 1.5 volt range from the 'signal' pin.</span><br /> <p><span>It is important that the voltage measurement take place at start up when the engine is cold and again, 20 minutes later, when the engine has fully warmed up to operating temperature. Often the voltage output from faulty sensors declines with temperature rise.</span><br /> <p><span> </span><br /> <p><b><span>How to fix?<span> </span></span></b><span>If the CMP failure is due oil leakage into the electrical connector then a thorough clean and a renewal of the oil seal on the CMP may correct the situation.<span> </span>It can be a wise precaution to change the connecting cable as oil migration beneath the insulation may possibly contaminate components at some distance to the CMP.<span> </span></span><br /> <p><span>If the CMP has an internal fault then it must be replaced.</span><br />

on Jul 22, 2011 | Mercedes-Benz E-Class Cars & Trucks

2 Answers

Pcm?


PCM= Powertrain Control Module. It is the brains of the car, it reads the sensor in put from all sensors including the cam shaft position sensor

May 14, 2014 | 2004 Toyota 4Runner

1 Answer

Must have bought some bad gas, how to fix really need help car will not start


petrol is petrol and there will be nothing wrong in that area . Run fault codes and look for cam/ crank position sensor . Check that the cam shaft is turning( broken timing belt / Chain). Check that the immobiliser is operational. Check that the fuel pump is working.

Feb 17, 2014 | Cars & Trucks

1 Answer

Engine check light is on, it cranks, diesel is coming to common rail but wont start.


run fault codes to find faulty sensors. Cam/crank position sensors. Check to see if the cam shaft is turning (broken timing belt)

Dec 26, 2013 | Nissan Cars & Trucks

1 Answer

When i pull the code up on my 1992 park avenue it blinks once then blinks twice. what does this code mean?


This is code 12 and it means "System Normal"
Here is the complete list of fault codes for your Buick
GM common codes for OBD1 (for vehicles made before 1995)
12 System normal
13 oxygen sensor circuit open
14 coolant sensor high resistance or shorted
15 coolant sensor circuit low or open
16 direct ignition system (DIS) fault in circuit
17 cam position sensor fault
18 crank or cam sensor error
19 crank sensor circuit fault
21 tps sensor out of range
22 tps sensor signal voltage low
23 intake air temp sensor out of range, low
24 vehicle speed (vss) sensor circuit fault
25 air temp sensor sensor out of range, high
26 quad-driver module (computer) circuit #1 fault
27 quad-driver module (computer) 2nd gear circuit
28 quad-driver module (computer) circuit #2 fault
29 quad driver module (computer) 4th gear circuit
31 cam position sensor fault
32 egr circuit fault
33 map sensor signal out of range, high
34 map sensor signal out of range, low
35 idle air control sensor circuit fault
36 ignition system circuit error
38 brake input circuit fault
39 clutch input circuit fault
41 cam sensor circuit fault, igntion control circuit fault
42 electronic spark timing (EST) circuit grounded
43 knock sensor
or electronic spark control circuit fault
44 oxygen sensor lean exhaust
45 oxygen sensor rich exhaust
46 pass-key II circuit or ps.pressure switch circuit fault
47 pcm-bcm data circuit
48 misfire diagnosis
51 calibration error, mem-cal, ecm or eeprom failure
52 engine oil temperature circuit, low temperature indicated
53 battery voltage error or egr or pass-key II circuit
54 egr system failure or fuel pump circuit low voltage
55 a/d converter error or pcm not grounded or lean fuel or frounded reference voltage
56 quad-driver module #2 circuit
57 boost control problem
58 vehicle anti-theft system fuel enable circuit
61 a/c system performance or degraded oxygen sensor signal
62 engine oil temperature high temperature indicated
63 oxygen sensor right side circuit open or map sensor out of range
64 oxygen sensor right side lean exhaust indicated
65 oxygen sensor right side rich exhaust indicated
66 a/c pressure sensor circuit low pressure
67 a/c pressure sensor circuit or a/c clutch circuit failure
68 a/c compressor relay circuit failure
69 a/c clutch circuit head pressure high
70 a/c refrigerant pressure circuit high
71 a/c evaporator temperature sensor circuit low
72 gear selector switch circuit
73 a/c evaporator temperature circuit high
75 digital egr #1 solenoid error
76 digital egr #2 solenoid error
77 digital egr #3 solenoid error
79 vehicle speed sensor (vss) circuit signal high
80 vehicle speed sensor (vss) circuit signal low
81 brake input circuit fault
82 ignition control (IC) 3X signal error
85 prom error
86 analog/digital ecm error
87 eeprom error
99 power management

May 05, 2011 | Buick Park Avenue Cars & Trucks

1 Answer

Engine man light flickering and car has lost power and is juddering.Ford focus 1.6 petrol 54reg


There is probably a sensor failure or other fault. When the engine management light is on, the ECU goes into get you home mode. I suggtes scanned the PCM to know what fault code is stored there and (with this code number) we could send additional details.

Keep in touch.

Feb 11, 2011 | 2005 Ford Focus

2 Answers

05 kia amanti with diagnostics codes p0350,p0320,p0300,p0302,p0303,p0304,p0305,p0306.skipping at times.when it does skip & misfire the rpm gauge goes crazy.this problem is not consitant


Generic OBD II Diagnostic Trouble Codes

DTC CODES P0300 to P0399

P0300....Random/Multiple Cylinder Misfire Detected

P0301....Cylinder 1 Misfire Detected

P0302....Cylinder 2 Misfire Detected

P0303....Cylinder 3 Misfire Detected

P0304....Cylinder 4 Misfire Detected

P0305....Cylinder 5 Misfire Detected

P0306....Cylinder 6 Misfire Detected

P0307....Cylinder 7 Misfire Detected

P0308....Cylinder 8 Misfire Detected

P0309....Cylinder 9 Misfire Detected

P0310....Cylinder 10....Misfire Detected

P0311....Cylinder 11 Misfire Detected

P0312....Cylinder 12 Misfire Detected

P0313....Misfire Detected with Low Fuel

P0314....Single Cylinder Misfire (Cylinder not Specified)

P0320....Ignition/Distributor Engine Speed Input Circuit

P0321....Ignition/Distributor Engine Speed Input Circuit Range/Performance

P0322....Ignition/Distributor Engine Speed Input Circuit No Signal

P0323....Ignition/Distributor Engine Speed Input Circuit Intermittent

P0324....Knock Control System Error

P0325....Knock Sensor 1 Circuit (Bank 1 or Single Sensor)

P0326....Knock Sensor 1 Circuit Range/Performance (Bank 1 or Single Sensor)

P0327....Knock Sensor 1 Circuit Low Input (Bank 1 or Single Sensor)

P0328....Knock Sensor 1 Circuit High Input (Bank 1 or Single Sensor)

P0329....Knock Sensor 1 Circuit Input Intermittent (Bank 1 or Single Sensor)

P0330....Knock Sensor 2 Circuit (Bank 2)

P0331....Knock Sensor 2 Circuit Range/Performance (Bank 2)

P0332....Knock Sensor 2 Circuit Low Input (Bank 2)

P0333....Knock Sensor 2 Circuit High Input (Bank 2)

P0334....Knock Sensor 2 Circuit Input Intermittent (Bank 2)

P0335....Crankshaft Position Sensor A Circuit

P0336....Crankshaft Position Sensor A Circuit Range/Performance

P0337....Crankshaft Position Sensor A Circuit Low Input

P0338....Crankshaft Position Sensor A Circuit High Input

P0339....Crankshaft Position Sensor A Circuit Intermittent

P0340....Camshaft Position Sensor 'A' Circuit (Bank 1 or Single Sensor)

P0341 Camshaft Position Sensor 'A' Circuit Range/Performance (Bank 1 or Single Sensor)

P0342....Camshaft Position Sensor 'A' Circuit Low Input (Bank 1 or Single Sensor)

P0343....Camshaft Position Sensor 'A' Circuit High Input (Bank 1 or Single Sensor)

P0344....Camshaft Position Sensor 'A' Circuit Intermittent (Bank 1 or Single Sensor)

P0345....Camshaft Position Sensor 'A' Circuit (Bank 2)

P0346....Camshaft Position Sensor 'A' Circuit Range/Performance (Bank 2)

P0347....Camshaft Position Sensor 'A' Circuit Low Input (Bank 2)

P0348....Camshaft Position Sensor 'A' Circuit High Input (Bank 2)

P0349....Camshaft Position Sensor 'A' Circuit Intermittent (Bank 2)

P0350....Ignition Coil Primary/Secondary Circuit

Nov 17, 2010 | Kia Amanti Cars & Trucks

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