Ye cant see anything
Would a boost hose not cause restricted performance all the time ???
Well it cannot hurt to check, and if the car has two map and one sees different to the other due to split hose, maybe that is your correlation bit?
Iirc it is the short ones on top that like to split.
Ok ill have another check but couldn't see anything
Graculus
Well-Known Member
Look for oily patches on the hoses - sometimes you only get restricted performance if the leak is small and the engine is being worked harder than usual, it could also be a small split in one of the inlet manifolds, if you can't find anything conclusive, I'd suggest finding a garage that can do an inlet and charge air duct smoke test.
Ok cheers
Split inlet manifold. Had this twice now.
Have a read of my first post in this thread: https://www.landyzone.co.uk/land-ro...hen-coolant-leak-and-cracked-manifold.381697/
Have a read of my first post in this thread: https://www.landyzone.co.uk/land-ro...hen-coolant-leak-and-cracked-manifold.381697/
Graculus
Well-Known Member
No, it's possible the soft one has delaminated or torn inside and is causing a restriction - 'rock hard' isn't great either, it usually means it's lost it's elasticity due to constant heating & cooling of the engine bay, whilst not likely to be the cause of your issue, it'd be wise to pre-plan it's replacement.
Graculus
Well-Known Member
Then next time it's likely to fail, get a reading of the air temperature seen at the MAF before you start the engine - note that it needs to be taken within 20 seconds of turning on the ignition as the MAF is a 'hot film' type and will affect the temperature reading if the ignition is left on with no airflow. Assuming the temperature is reasonably accurate, this will reinforce it being down to a leak as the air is denser at lower temperatures, so any leakage will magnify a signal correlation calculation error.
Graculus
Well-Known Member
Without a code reader (even a cheap bluetooth dongle from Amazon like Amazon product ) or somewhere that can carry out a smoke test - depending upon the faults stored, you're not really going to be able to diagnose the cause yourself, unless you get lucky and find a split in a charge air hose or a crack in an inlet manifold....
Black or grey smoke is to be expected as there isn't enough air being pushed into the engine to fully combust the fuel.
Black or grey smoke is to be expected as there isn't enough air being pushed into the engine to fully combust the fuel.
Ok thanks just worried about possibility of turbo but im guessing that would be different symptoms again....
Graculus
Well-Known Member
Not necessarily, if the turbo actuator detects an inability to produce the required boost and the 'unstick' procedure built-in to the ECM software doesn't free off the rose joints or gimbal plate, then it'll set an appropriate DTC and back off the boost to save the engine. You really need to be reading the DTC's to develop a diagnostic plan.
When i read the codes with a m8s reader it only came up with the P023d-22 one sorry for all questions just annoying as only owed the car a few months
