Shottyman
Member Since: 13 Nov 2018
Location: Bedfordshire
Posts: 48
  
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So I've just done an engine swap with a jag engine in my D3 (stripped to bare block and then swapped over) I've left the front end, back end, brakes ect off but I've connected all the engine and gearbox side of things, and the chassis to body connectors.
I've got fuel at the bleed nipple on the top of the engine and the engine turns over, but I can't get pressure on the high side (shows 0 psi on IID )
Is there a method of priming the high side? is there something else I need to check?
The only engine faults I get are:
P0101-17 (68) Mass or volume air flow - circuit range/performance - General electrical failure - circuit voltage above threshold
P0622-29 (6C) Generator field terminal circuit - General signal failure - signal is invalid
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 28th Feb 2019 7:04 pm |
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Flack
Member Since: 06 Sep 2006
Location: Preston Lancashire
Posts: 6233
 
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Do a fuel lift pump routine on the iid tool..
Flack 
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| 28th Feb 2019 8:34 pm |
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Shottyman
Member Since: 13 Nov 2018
Location: Bedfordshire
Posts: 48
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Ok thanks, I will try and do that on the weekend and see what happens 👍👍
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| 1st Mar 2019 8:46 am |
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Shottyman
Member Since: 13 Nov 2018
Location: Bedfordshire
Posts: 48
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Did the lift pump routine, still no pressure. I get a little bit of fuel out the top of the fuel rail on cranking but nothing reading on the pressure sensor. Any other ideas?
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| 2nd Mar 2019 4:30 pm |
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Flack
Member Since: 06 Sep 2006
Location: Preston Lancashire
Posts: 6233
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Did you disturb the crankshaft sensors and are they connected up, and are you sure the rear pump belt is actually turning the hpfp.?. Check your PCM connectors and make sure they are on fully.
Flack
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| 2nd Mar 2019 6:05 pm |
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Shottyman
Member Since: 13 Nov 2018
Location: Bedfordshire
Posts: 48
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I disturbed alot of things, it was a Jag engine before I fitted it into the landy, so it's all been stripped and re-fitted. I left the jag crank sensor on as they looked identical to the D3 one, and luckily the sensor ring was still there. I get an engine RPM reading on the IID tool so I'm guessing the sensor is working. I will stick a boresnake into the rear belt cover to see if the pump is turning and I'll check the PCM connectors tomorow.
The connector on the top of the HPFP, is that a sensor or a solenoid? Just wondering if it was a solenoid if I could check it was switching or not.
Thanks for the help.
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| 2nd Mar 2019 8:27 pm |
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Flack
Member Since: 06 Sep 2006
Location: Preston Lancashire
Posts: 6233
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Shottyman why did you not put a new Rear cambelt on it when the engine was out.?
Flack
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| 2nd Mar 2019 10:54 pm |
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Shottyman
Member Since: 13 Nov 2018
Location: Bedfordshire
Posts: 48
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I did, new belts and tensioners all round, but it's worth a check incase I forgot to pull out the tensioner pin (I'm sure I did before I fitted the cover)
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| 3rd Mar 2019 10:39 am |
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gearmuncher
Member Since: 30 Oct 2018
Location: Woodley
Posts: 143
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Is the pump from the Jag or Land Rover ?.
The connections to the pump are more than just an on off signal, they regulate the pressure.
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| 3rd Mar 2019 3:06 pm |
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gearmuncher
Member Since: 30 Oct 2018
Location: Woodley
Posts: 143
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this is from the manual, looks like there are two valves one for volume and one for pressure, no signal to ether of these and you will get no pressure out
The VC V is a variable position solenoid valve electronicall controlled by the EC M. The VC V is located between the
ITP and the HP pumping elements. The VC V determines the amount of fuel that is delivered to the HP pumping
elements. When there is no signal to the VC V the valve is closed, therefore no fuel deliver.
The 3 HP pumping elements are connected together in a fuel ring circuit within the pump. There is a single HP outlet
connection for the HP pipe to the HP diverter rail.
The PC V is a variable position solenoid valve electronicall controlled by the EC M. The PC V is located between the HP
pumping elements and the HP outlet connection. The PC V regulates the amount of fuel pressure in the fuel rails and is
controlled by the EC M. When there is no signal to the PC V the valve is open, therefore no rail pressure can be
generated.
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| 3rd Mar 2019 3:25 pm |
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Shottyman
Member Since: 13 Nov 2018
Location: Bedfordshire
Posts: 48
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It was the pump off the old D3 engine, the Jag engine came as bare block and heads.
I've checked the top connector on the pump, haven't checked the bottom fly lead one, totally forgot it had 2 so I will check on that tomorow. It was too wet and windy today to be playing around with electrics.
Thanks again for these pointers.
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| 3rd Mar 2019 5:37 pm |
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Shottyman
Member Since: 13 Nov 2018
Location: Bedfordshire
Posts: 48
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So I've cleaned the pcm connectors, I've checked the pump is connected, I have 12v on the power side of the pump connectors and IID is showing an output to the VCV and the PCV, without a scope I cant tell if the signal is getting to the solenoids though.
One thing I noticed was the "Fuel Rail Pressure Sensor" is reading N/A where as the "Fuel Pressure" reads 0psi. Also looking at pictures there seems to be another rail at the back with a sensor and one output from the pump, both by Left and Right rails go direct to the pump, is this an EU4 thing?
I'm going to try a better battery, and crack off the pipe at the top of the pump to eliminate an air lock on that side.
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| 5th Mar 2019 7:50 pm |
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annette
Member Since: 16 Dec 2017
Location: Tilarán
Posts: 66
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I had exactly the same struggled for a week, had no joy with answers.
the book tells you to check the VCV and PCV but it does not tell you how , if the resistance is fine and the IId tool reports that the move like normal.
Well to make a very long story short, looks like the pump is bad.
Don't ask me why on eath, if the belt moves, if it worked fine till the injectors were serviced etc.
I hope the lab can save it otherwise the client will probably try to assassinate me. Fixing LR problems very far from Solihull.
That's why my newest car is a 1999 Disco 2 V8 with 285.000 miles
The problem is the missing documentation, not the LR
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| 5th Mar 2019 10:25 pm |
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Shottyman
Member Since: 13 Nov 2018
Location: Bedfordshire
Posts: 48
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So, ive been a bit of an idiot.
I decided to check the top pipes on the hp pump, undid the easy one, turned her over and fuel was flowing. Tightened back up and still no pressure. Though "I'll check the other pipe" and it wasn't even done up, so the fuel on the floor I put to the side being thinking it was from when I did the low pump bleed, was actually coming from that loose hip pump side. Tightened that up and believe it on not I got pressure and she starts.
Thank you all for the assistance and sorry I'm a bit of a muppet, but I'll happily hold my hands up to it 😂😂😂
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| 8th Mar 2019 2:14 pm |
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gearmuncher
Member Since: 30 Oct 2018
Location: Woodley
Posts: 143
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you should upload pics of this epic repair, have you replaced the belts ?.
is the oil pump the same as on a Land Rover engine ?.
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| 8th Mar 2019 3:42 pm |
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