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Old Feb 17, 2025 | 01:50 PM
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Default 2019 td6 lpfp

Does anyone have any info on accessing the in-tank fuel pump? Is there access without dropping the tank? I was driving down the freeway today and out of the blue it stalled I ran the codes and it's a low pressure at the fuel rail. I suspect it's the pump in the tank.
 
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Old Feb 17, 2025 | 04:23 PM
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The fuel rail pressure would be measured after the high pressure pump. What codes is yours showing?
 
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Old Feb 17, 2025 | 04:52 PM
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Originally Posted by Chucktastic
The fuel rail pressure would be measured after the high pressure pump. What codes is yours showing?
P016d
P00c6
P0087


 
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Old Feb 18, 2025 | 06:37 AM
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Originally Posted by peetpete
P016d
P00c6
P0087
How many miles since fuel filter change?
Is your fuel good quality?

 
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Old Feb 18, 2025 | 04:20 PM
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I would recommend getting an OBD tool that can read the JLR sub-codes. p016d and p00c6 only have one sub-code, but p0087 has about a dozen.

P016d - Excessive time to enter closed loop due to fuel pressure control
P00c6 - Fuel Rail Pressure Too Low - Engine Cranking Bank 1
P0087 - Multiple fuel rail pressure sub-codes. Basically fuel pressure too low, below acceptable range, etc.

I'd be checking your fuel filter, high-pressure fuel pump, or the fuel pump belt.


It's *possible* there's an issue with the low-pressure lift pump, but it has its own pressure sensors. Not where I'd start since you don't have a LPFP code.
 

Last edited by Chucktastic; Feb 18, 2025 at 04:25 PM.
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Old Feb 18, 2025 | 04:24 PM
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Originally Posted by Chucktastic
I would recommend getting an OBD tool that can read the JLR sub-codes. p016d and p00c6 only have one sub-code, but p0087 has about a dozen.

P016d - Excessive time to enter closed loop due to fuel pressure control
P00c6 - Fuel Rail Pressure Too Low - Engine Cranking Bank 1
P0087 - Multiple fuel rail pressure sub-codes. Basically fuel pressure too low, below acceptable range, etc.

I'd be checking your fuel filter, high-pressure fuel pump, or the fuel pump belt.
where is the fuel pump belt located?

Edit: I found it.

do you have a recommendation for a OBD scanner?
 

Last edited by peetpete; Feb 18, 2025 at 04:44 PM.
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Old Feb 18, 2025 | 04:40 PM
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The high pressure fuel pump is located between the cylinder heads at the back of the engine and driven by a belt and tensioner from the exhaust camshaft.

Behind this cover.  Not easy to get to.
Behind this cover. Not easy to get to.
 
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Old Feb 18, 2025 | 04:52 PM
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Originally Posted by Chucktastic
The high pressure fuel pump is located between the cylinder heads at the back of the engine and driven by a belt and tensioner from the exhaust camshaft.

Behind this cover.  Not easy to get to.
Behind this cover. Not easy to get to.
looks like fun.

one thing to note. When this happened I was able to limp home/ engine would start (about 5 miles)

now engine will crank but no start. If this were a pump belt issue, would I have been able to make it home?
 
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Old Feb 18, 2025 | 05:12 PM
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Many people swear by the IID-Tool GAP tool. I have one and it has been great for me. It's the only one I know of that can change settings in the car config to enable new features. It's not the only one that can read the JLR codes if that's all you want though.

Without having a mechanic look at it, it's hard to say about the limp mode. the LPFP might have been able to supply enough pressure to run at low speed or your HPFP may have slowly died and you just got lucky.
 
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Old Feb 18, 2025 | 06:23 PM
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Originally Posted by Chucktastic
Many people swear by the IID-Tool GAP tool. I have one and it has been great for me. It's the only one I know of that can change settings in the car config to enable new features. It's not the only one that can read the JLR codes if that's all you want though.

Without having a mechanic look at it, it's hard to say about the limp mode. the LPFP might have been able to supply enough pressure to run at low speed or your HPFP may have slowly died and you just got lucky.
i just ordered the scanner and it will be here tomorrow. I'll let you know what I find. Thanks
 
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