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2015 Range Rover Evoque p008A
- Noah
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3 years 1 month ago - 3 years 1 month ago #58100
by Noah
"Ground cannot be checked with a 10mm socket"
2015 Range Rover Evoque p008A was created by Noah
2015 Land Rover Range Rover Evoque 2.0l turbo GDI (Ford Ecoboost)
Code P008A-07: Low pressure fuel pressure too, mechanical.
(U0447-00 invalid data received from gateway A sets immediately, but I believe this to be unrelated as of now)
Hoping someone has some better fuel pressure specs.
MITCHELL says as far as fuel pressure: 90psi cranking, 65psi running.
Ok, but at what fuel pump duty cycle?
The data pids for low fuel pressure are only fuel pump % and low pressure voltage.
With a mechanical gauge, with codes set, hot idle is 31psi @ 24% duty cycle.
If I clear the codes with it running, pressure jumps up to 65 @ 35%, and will jump into the 80s @ a snap throttle.
Once shut down and re started, fuel pressure starts high around 80psi, then gradually drops following the duty cycle PID that is also gradually dropping, until the code sets and it appears that the fuel pump driver defaults to 24% and 31psi.
The code will not set if codes are cleared while running, but sets each time the engine is restarted. I also don't think I've ever seen it hit 90psi cranking. Does not appear to have clear flood crank.
Drives great, lots of pull, not obviously running lean or anything.
Rover SI is... ambiguous.
If I look up the same code in Mitchell as a 15 Ford Escape, one of the tests is a test drive with a WOT pull, and for results wants to know if fuel pressure ever dropped below 50psi.
I think that may well be the minimum spec, but again, without desired or actual pressure, I'm really at the mercy of the trouble code.
Not ready to slam an intank pump I this yet.
Any suggestions are welcome, as always thank you all in advance!
EDIT: after reading my own post (that helps
) I'm thinking that if it wants 90psi cranking, then the key on prime should be very close to 90psi, and it's not.
I'll update with more info if I get to that car today.
Code P008A-07: Low pressure fuel pressure too, mechanical.
(U0447-00 invalid data received from gateway A sets immediately, but I believe this to be unrelated as of now)
Hoping someone has some better fuel pressure specs.
MITCHELL says as far as fuel pressure: 90psi cranking, 65psi running.
Ok, but at what fuel pump duty cycle?
The data pids for low fuel pressure are only fuel pump % and low pressure voltage.
With a mechanical gauge, with codes set, hot idle is 31psi @ 24% duty cycle.
If I clear the codes with it running, pressure jumps up to 65 @ 35%, and will jump into the 80s @ a snap throttle.
Once shut down and re started, fuel pressure starts high around 80psi, then gradually drops following the duty cycle PID that is also gradually dropping, until the code sets and it appears that the fuel pump driver defaults to 24% and 31psi.
The code will not set if codes are cleared while running, but sets each time the engine is restarted. I also don't think I've ever seen it hit 90psi cranking. Does not appear to have clear flood crank.
Drives great, lots of pull, not obviously running lean or anything.
Rover SI is... ambiguous.
If I look up the same code in Mitchell as a 15 Ford Escape, one of the tests is a test drive with a WOT pull, and for results wants to know if fuel pressure ever dropped below 50psi.
I think that may well be the minimum spec, but again, without desired or actual pressure, I'm really at the mercy of the trouble code.
Not ready to slam an intank pump I this yet.
Any suggestions are welcome, as always thank you all in advance!
EDIT: after reading my own post (that helps

I'll update with more info if I get to that car today.
"Ground cannot be checked with a 10mm socket"
Last edit: 3 years 1 month ago by Noah.
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- Tyler
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3 years 1 month ago #58113
by Tyler
Replied by Tyler on topic 2015 Range Rover Evoque p008A
I did happen to see a possibly relevant TSB for this one:
static.nhtsa.gov/odi/tsbs/2015/SB-10105985-9340.pdf
It suggests a reflash, but only if blah blah blah campaign is open.
You mentioned looking up SI as a '15 Escape instead (which was a good idea, IMO)... If I were working on an Escape with a low side pressure code, my mind goes straight to the low side sensor. They fail all the time, usually overreporting. BUT I think you'd mentioned already trying one?
static.nhtsa.gov/odi/tsbs/2015/SB-10105985-9340.pdf
It suggests a reflash, but only if blah blah blah campaign is open.

You mentioned looking up SI as a '15 Escape instead (which was a good idea, IMO)... If I were working on an Escape with a low side pressure code, my mind goes straight to the low side sensor. They fail all the time, usually overreporting. BUT I think you'd mentioned already trying one?
The following user(s) said Thank You: Noah
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3 years 1 month ago #58128
by Noah
"Ground cannot be checked with a 10mm socket"
Replied by Noah on topic 2015 Range Rover Evoque p008A
Thank you for the reply sir. The game plan, as I heard it, was to change the low pressure sensor before I was even aware the car was being dropped off. Someone read codes and sold a part. When the part came in, it was the wrong one.
"Ground cannot be checked with a 10mm socket"
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3 years 1 month ago - 3 years 1 month ago #58151
by Noah
"Ground cannot be checked with a 10mm socket"
Replied by Noah on topic 2015 Range Rover Evoque p008A
UPDATE!
While I was at the junk yard yesterday looking for a Honda brake proportioning valve, I decided to check out the inventory of GDI Fords.
As luck would have it, a 12 Focus has the same looking low pressure fuel pressure sensor with the same connector. So that was a nice score. And if it makes me a parts changer, whatever, I tried it on the Rover.
There was no change in the symptoms or voltage measurements from previous testing.
If codes are cleared while running, they will not return and fuel pump duty cycle and low pressure voltage will change with load demand.
Once shut down and restarted, P008A-07 sets again, then fuel pump command appears to fix @ 24%.
I feel closer to condemning the intank pump. I'll probably scope sensor signal while cranking just to make sure it's not getting funny (98% sure I already had the scope on it during a crank, but don't explicitly remember monitoring voltage during the crank), and I might try a variable resistor in place of the low pressure fuel pressure sensor to try and "trick it" into seeing 90psi during cranking.
I'm open to other suggestions, and if none, it's helpful for me to just digest and express the experience
I'll post an update when I have one.
While I was at the junk yard yesterday looking for a Honda brake proportioning valve, I decided to check out the inventory of GDI Fords.
As luck would have it, a 12 Focus has the same looking low pressure fuel pressure sensor with the same connector. So that was a nice score. And if it makes me a parts changer, whatever, I tried it on the Rover.
There was no change in the symptoms or voltage measurements from previous testing.
If codes are cleared while running, they will not return and fuel pump duty cycle and low pressure voltage will change with load demand.
Once shut down and restarted, P008A-07 sets again, then fuel pump command appears to fix @ 24%.
I feel closer to condemning the intank pump. I'll probably scope sensor signal while cranking just to make sure it's not getting funny (98% sure I already had the scope on it during a crank, but don't explicitly remember monitoring voltage during the crank), and I might try a variable resistor in place of the low pressure fuel pressure sensor to try and "trick it" into seeing 90psi during cranking.
I'm open to other suggestions, and if none, it's helpful for me to just digest and express the experience

I'll post an update when I have one.
"Ground cannot be checked with a 10mm socket"
Last edit: 3 years 1 month ago by Noah.
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- Noah
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3 years 1 month ago #58185
by Noah
"Ground cannot be checked with a 10mm socket"
Replied by Noah on topic 2015 Range Rover Evoque p008A
UPDATE:
I presented my findings and reasoning to believe the in tank pump to not be building enough pressure to achieve the SI stated required 90psi during cranking.
Management doesn't agree, so off to the Land Rover dealer she goes.
This customer has many cars under our care, so I'm hopeful that I'll at least get to hear what fixed it.
Thanks everyone for taking the time to read along, I'll update in the future if possible.
I presented my findings and reasoning to believe the in tank pump to not be building enough pressure to achieve the SI stated required 90psi during cranking.
Management doesn't agree, so off to the Land Rover dealer she goes.
This customer has many cars under our care, so I'm hopeful that I'll at least get to hear what fixed it.
Thanks everyone for taking the time to read along, I'll update in the future if possible.
"Ground cannot be checked with a 10mm socket"
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- juergen.scholl
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3 years 1 month ago #58199
by juergen.scholl
An expert is someone who knows each time more on each time less, until he finally knows absolutely everything about absolutely nothing.
Replied by juergen.scholl on topic 2015 Range Rover Evoque p008A
Thank you for the latest update, curious for the final outcome.
An expert is someone who knows each time more on each time less, until he finally knows absolutely everything about absolutely nothing.
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