Join Date: Jun 2009
Location: United Kingdom
Twin spark- can it be a cam sensor fault?
The car started 'hunting' a few weeks ago with the idle speed rising and falling.
No warning light on the dash so the first thing I checked was the flexi intake hose which was found with many splits in the corrugations - Wahooooooooooooo!! Easy peasy, I thought - No chance! The fault is still there.
As its a Phase 2 engine (which doesn't respond to a whack on the idle speed valve), I replaced the throttle body along with the idle actuator.
Using Multiecuscan I reset all stored fault codes and did the idle actuator reset. However, the symptoms are still there.
Went for a good long drive, the car pulls well but when my foot is off the throttle or just feathering the throttle, the 'hunting' returns.
Still no warning light on dash but have now noticed I have a fault showing a Camshaft position sensor error and the Lambda probe, logged on laptop.
I replaced the Lambda sensor (thinking it to be the more likely cause of this fault) but the fault is staill there.
The only fault now stored is the camshaft position sensor.
I'm happy to replace this but I'm not convinced this is at fault - any ideas or suggestions anybody??????
Sorry for the long post!