Question about 2006 Ford Taurus
P0340 FORD - Camshaft Position Sensor Circuit Bank 1 Sensor 1Possible causes- Faulty Camshaft Position Sensor
- Camshaft Position Sensor harness is open or shorted
- Camshaft Position Sensor circuit poor electrical connection
- Faulty starter motor
- Starting system circuit
- Dead (Weak) battery
P0340 FORD Description The Camshaft Position Sensor is an electronic device used in an engine to record the rate at which the camshaft is spinning. This information is used by the Engine Control Module(ECM) to control ignition and fuel injection. The camshaft position sensor senses the retraction of camshaft (intake) to identify a particular cylinder. The camshaft position sensor senses the piston position. The sensor system consists of a rotating part, typically a disc, as well as a static part, the actual sensor.
When the engine is running, the high and low parts of the teeth cause the gap with the sensor to change. The changing gap causes the magnetic field near the sensor to change. The change in the magnetic field cause the voltage from the sensor to change.
When the crankshaft position sensor (POS) system becomes inoperative, the camshaft position sensor provides various controls of engine parts instead, utilizing timing of cylinder identification signals.
P0430, main catalyst is worn out.
Posted on Dec 05, 2012
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Posted on Jan 02, 2017
Code P0340 is a camshaft position sensor CIRCUIT fault. This means it can be a bad sensor, wiring fault (loose connector, short, open), or even a bad PCM. Since you've already changed the camshaft position sensor you've eliminated that possibility. It's time to do some electrical troubleshooting. That, of course, depends upon your skill set for this type of work and equipment (mostly a good dmm and schematics). If you're not equipped for this then you'll likely have to seek assistance from a local shop.
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Posted on Jun 30, 2009
SOURCE: ford f150 2003 po171 always
Code Po171 indicates a lean condition on cylinder bank #1 of the engine. This is the drivers side of the engine. I would suggest replacing both front oxygen sensors as a pair to start. An oxygen sensor has a life span of about 5 years and yours are now 9 years old if they are original. When they get older they are slow to respond to changes in the oxygen content of the exhaust and can trigger a code Po171. If you continue to have the same code set after the replacement of both oxygen sensors then it is time to find out why your engine is running lean. Some of the most common causes are an ignition misfire and a vacuum leak. I have also seen Fords EGR flow sensor (known by Ford as Delta Pressure Feedback sensor) to cause problems like that as well. A good mechanic with a scan tool can usually spot a problem like that in a few minutes.
Posted on Mar 01, 2011
SOURCE: DTC Code P0430
WOW, THAT CODE IS FOR ALL THAT.
EXHAUST FAILURE, CATALITYC FAILURE AND O2 FAILURE.
I WILL SAY TO REPLACE THE O2 SENSOR WICH IS THE CHEAPEST WAY AND SEE IF THAT;S THE PROBLEM. BTU FOR TIME AND AROUND 120,000 MILES THE CATALITYC GOES BAD.
BUT I WILL GO FIRST WITH THE O2 SENSOR.
IF YOU CAN'T FIND A GOOD DEAL LET ME KNOW I CAN GET THEM CHEAP " AROUND $ 60.- "
Posted on Jun 11, 2008
SOURCE: 03 Taurus with DTC P0340, P1336
I would think it would be just the Camshaft Position Sensor.I looked up the codes and they say pretty much the samething.
P0340 Ford Camshaft Position Sensor Circuit Malfunction
P1336 Ford Crankshaft/Camshaft Sensor Range/Performance
Posted on Jan 18, 2009
The P0420 code is a Catalytic converter efficiency code check the compression.Swap the #1 injector to a different location to see if the code follows.Test the coilpak. A cracked exhaust manifold is the most likely cause p0171 and 0174 Induction air leaks, vacuum or some kind fuel restriction, weak fuel pump, restricted fuel filter etc.You also could have an exhaust leak near the upstream o2 sensor. If youtake it in they will probably use smoke to find out where the leak is.
Posted on Apr 22, 2009
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