An interesting one worth investigating if you too have a persistent yellow wrench light and 'Engine Service Now' message after about an hour of driving.
Code P2279 was showing. Intake air leak essentially. I'm guessing the ECU was monitoring trends and throwing the engine light when it determined that values were outside of normal parameters.
All hoses seemed fine. Airbox checked and rechecked. Eventually I caved and bought a smoke leak tester. Smoke was pouring from near the BOV. Previous owner had installed a BOV adapter, essentially to convert the recirculating type BOV (that this engine was designed for) to an atmospheric type (for more turbo sound effects). Presumably an accompanying tune would be required to mitigate the engine light coming on. The adapter has holes drilled into it to vent the turbo boost to the atmosphere, this is where the smoke was pouring from and can just about be seen in the picture.
Adapter has been removed (marked 'Forge' in the attached picture) and the light has not returned. Engine feels marginally stronger (placebo?), more responsive and MPG has definitely improved a little.
So there you have it folks - if you too have gone down the rabbit hole and scouted every forum to try and solve this issue, perhaps a previous owner has installed a silly BOV adapter.
PS - You'll need the original shorter bolts if you do have one of these installed as the adapter will come with longer bolts to accommodate its fitment. 3 M6x20mm will so nicely. Also it's a pig to reach.
Code P2279 was showing. Intake air leak essentially. I'm guessing the ECU was monitoring trends and throwing the engine light when it determined that values were outside of normal parameters.
All hoses seemed fine. Airbox checked and rechecked. Eventually I caved and bought a smoke leak tester. Smoke was pouring from near the BOV. Previous owner had installed a BOV adapter, essentially to convert the recirculating type BOV (that this engine was designed for) to an atmospheric type (for more turbo sound effects). Presumably an accompanying tune would be required to mitigate the engine light coming on. The adapter has holes drilled into it to vent the turbo boost to the atmosphere, this is where the smoke was pouring from and can just about be seen in the picture.
Adapter has been removed (marked 'Forge' in the attached picture) and the light has not returned. Engine feels marginally stronger (placebo?), more responsive and MPG has definitely improved a little.
So there you have it folks - if you too have gone down the rabbit hole and scouted every forum to try and solve this issue, perhaps a previous owner has installed a silly BOV adapter.
PS - You'll need the original shorter bolts if you do have one of these installed as the adapter will come with longer bolts to accommodate its fitment. 3 M6x20mm will so nicely. Also it's a pig to reach.
Attachments
Last edited:
