BTW Dan,disconnecting a TD5 airflow meter is a well known test for TD5's,as they fail they tend to give a low reading which restricts fuelling and hence engine output.Disconnecting it is the way to get the ecu to use the default values which will restore most of the lost performance.
P2290 is a diagnostic trouble code (DTC) for "Injector Control Pressure Too Low". This can happen for multiple reasons and a mechanic needs to diagnose the specific cause for this code to be triggered in your situation. Our certified mobile mechanics can come to your home or office to perform the Check Engine Light diagnostic for $154.99 .
**Update 01/08/2020**Its a spun main bearing.follow the full journey
Using Autel diagnostics to run through the testing for adblue injector faults. Checking the spray pattern is correct. This particular adblue injector fault r
D2a Td5 has just developed a "miss" (rough idle, rough running) in last 100 k's out bush. Plugged in Nanocom and get message "injector 4 open circuit detected". Still on original injector harness and injectors, no signs of oil running down harness to ECU. This problem came on suddenly in course of an afternoon.Fuel Injectors Kit, Set of 6, Original Equipment LR105431 By BOSCH For 6-Cylinder Engines On Land Rover LR4, Discovery 5, Range Rover Full Size L405, Range Rover Sport Supercharged, And Range Rover Velar (See Fitment Years) Fits. LR4 / Discovery 4 V6 3.0 Liter | 14 - 16.
At the front of the tank is a push on connector for the fuel line check this is right home, this feeds the fuel line where the schrader valve. Next there is a connector on the lower side of the engine, again with a push on connector. Make sure this is okay as mine leaked at that connector and the vehicle would not run. A.
CoOW.