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Hello 🙂
About P0505 first. If you take off air cleaner element, and let car idle (warm), then place youre finger over bores in trottle body idle port. If cars stall, then you not have vacuum leak. (not much, at least)
youre cylinder 1 missfire, i would do a power balance test. And see if it really cyl 1 that missfire. Then check injector, injector control and power suply, And of course sparkHello 🙂
Here you have wiring diagram. Make it much better too see where you could measure..
I would start check what you miss, 12+ or ground, at bulb conector..Hello 🙂
Here are wiring diagram..
Where did you conect power too, when you test pump?
Remeber it only prime 1-2 sec when turn ign on. And when it see a crank signal it will run as long as it see it..Hello 🙂
That code is: Intake Air Temperature Sensor Circuit Range/Performance.
Becouse this only happen when its cold im pretty sure its the sensor itself, and not wiring that couse this.ok, so all injector have 12v and not lose that.. and only injector 1,3 and 5 lose control (ground switch) from ecm.
i would see wiring diagram, but not find 3.0l v6 in freelander.. sure its not a 2.5 l v6?ok.. i really would use a pressure gauge on hoses that goes too differential pressure sensor, and see if dpf is really glogged.. there goes two hoses to it, on comes from before dpf and one after dpf.. read both side and see .. it could be a starting too fail pressure sensor too, when it get hot it fail..
yes you can start it with computer, but engine then too need be at at least 70-80 degree celsius.
without i really think you cant.
Does the car start and idle? have you check function of differential pressure sensor? becouse if it read wrong you could have a car that not will run..Hello 🙂
So youre compression are good and equal. And spark are good too all cylinders?
And you lost injetor puls to cylinder 1,3 and 5? Is power feed to those injector there when this happen?hello 🙂
I would start check fuses.. And undo youre wiring and see..
I think fuse 22 in underhood fusebox is possible blown..Hello 🙂
The dpf regeneration starts by itself when engine is hot, and you drive it in some speed.. so take it for a trip and drive little hard..
it uses a differential pressure sensor to see pressure before and after dpf. there you can test with pressure gauge and see if its clogged..
what was the code that you read?
and use engine oil for dpf.. (ACEA C2 or C3)
i see 5.3 l with filter change for that engine.
