Passat 2001 with codes P0012,P0340 it runs fine the turbo kicks in no problem I originally found some broken vaccum line and replaced them but the codes still return
P0340 - Camshaft Position Sensor Trouble
Your cam timing timing is off and the sensor is fine. They are very
simple sensors...it's just a magnet...and magnets don't go bad. Check
Incorrect allocation means that the camshaft isnt where the computor
thinks it should be at any given time. This could be casued by the base
engine timing being off by a tooth or by a problem in the camshaft
P0012 Camshaft A: Advance Setpoint not Reached
The code P0012 can be set by the following concerns: Faulty cam adjuster, Faulty cam adjuster solenoid, Low oil pressure, Sludged oil passages and Sticky camshaft.
The variable cam timing uses engine oil pressure diverted to the adjuster mechanism by a solenoid duty cycled by the PCM. Low oil pressure or severe oil sludging can affect camshaft timing operation. Always check oil level and condition when camshaft adjustment codes are present.
Using a full function Volkswagen compatible scan tool enter address word 01 (Engine). Function 08 (Read Measuring Value Blocks) and Display Group 091 (Power Enhancement Camshaft Adjustment).
Observe the 4th display field "Active Camshaft Adjustment Angle" With the engine at idle. The 4th display field should read between -3.0 to +6.0 degrees KW if the camshaft is in the normal unadvanced position. Any other reading at idle indicates that the camshaft is shifted from the normal unadvanced position
Accelerate the vehicle from a standstill in 1st gear using wide-open throttle and observe the display in field 4 again. Under heavy acceleration the display should read between +16.0 to +25.0 degrees KW. This indicates that the camshaft has shifted to the full advance position.
If the display in field 4 does not change from the values in test step 2 or if the display changes but does not reach a minimum of +16.0 degrees KW (i.e. between +6.0 and +16.0 degrees KW), the camshaft timing adjuster mechanism is not advancing the camshaft.
Failure to advance the camshaft could be caused by a faulty cam adjuster, a faulty cam adjuster solenoid, low oil pressure, sludged oil passages, or a sticky camshaft.
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Oct 11, 2011 |
2001 Volkswagen Passat