Calamity, Concern, or just slit my wrists (Auto Trans Issues)

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Originally Posted by DiscoJeffster

Codes. You just bought an IID tool so what are the codes!! Read the codes to avoid having to get out the crystal ball.

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Thanks to all for the feedback.

Re codes - I did say "finally deciding to clear the faults and drive on with feathering the accelerator."

I haven't re-checked, but was of the understanding that after I had cleared the codes I could not get them back. If I've missed that part after having read the manual cover to cover, please point me in the right direction.

As an aside, looks like I'm another heading down the HPFP direction. My pretty comprehensive maintenance records show no past fuel pump related "activities" so guess at 275Kkm I'm now in that zone.

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Originally Posted by gavinwibrow

I haven't re-checked, but was of the understanding that after I had cleared the codes I could not get them back. If I've missed that part after having read the manual cover to cover, please point me in the right direction.

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Email them to yourself before clearing them. That way you have a record of what they are.

Or a simple screenshot of the device.

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Originally Posted by Tombie

Or a simple screenshot of the device.

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That all I do. And don’t forget to go into options and select “pending” errors else you’ll miss many of them

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Originally Posted by gavinwibrow

.

As an aside, looks like I'm another heading down the HPFP direction. My pretty comprehensive maintenance records show no past fuel pump related "activities" so guess at 275Kkm I'm now in that zone.

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Just checked and found this under 2.7L Engine Faults - the only fault present apart from the one below, and nothing in Pending.

P2290-00 (68) Injector control pressure too low.

There was also a BCM fault about a transponder, probably from when I tried to start the engine this morning with the key too far away.

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Originally Posted by gavinwibrow

Thanks to all for the feedback.

Re codes - I did say "finally deciding to clear the faults and drive on with feathering the accelerator."

I haven't re-checked, but was of the understanding that after I had cleared the codes I could not get them back. If I've missed that part after having read the manual cover to cover, please point me in the right direction.

As an aside, looks like I'm another heading down the HPFP direction. My pretty comprehensive maintenance records show no past fuel pump related "activities" so guess at 275Kkm I'm now in that zone.

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Sorry mate, was just hoping you had saved them. I still haven't picked up my GAP IID Tool yet, so wasn't sure if the app saved any codes read in a report or something. Some OBD apps I've had in the past saved the codes for me each time I read them so I could refer to them at a later date once I'd cleared and moved on.

Maybe one of the other fellas that have used it a bit know of they are saved somewhere special or not.

Unfortunately, with the HPFP, it tends to be a bit of trial and error to diagnose it on most cases. There are some reasonably easy tests that a decent Indy can perform on the fuel pressure sensor and the LPFP to rule them in or out. Essentially eliminate those as a problem before move to the HPFP.

It'd be nice if you didn't have to replace it, but at 275k, there is a higher than nil chance that it will need doing at some stage. I don't know too many common-rail diesels that make it through 300k without at least a little work on the HPFP.

Keep at it bud. :)

Your sins are known to us all Gavin, mine of course are not the type to be published for all and sundry to read. :O
AlanH.

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Originally Posted by libertyts

Hey Gav,

Mate, I feel yeah pain. Would love to take ya out for a beer to get you through it!

Any codes would be good as always.

It actually sounds like my issue and something a number of us have had over the years. Going into limp mode and shows "Transmission Fault". However, it's often not. For a good chunk of us it's fuel system related. ie. Low pressure fuel pump (LPFP), high pressure fuel pump (HPFP), fuel rail pressure sensor or a combination of them.

For me, the fuel rail pressure sensor was diagnosed as the fault and, due to the fact I'm still learning about this fancy D4 thing, the indy replaced the rail as "you can't buy the sensor separately". Should have trusted my gut there, because that's complete rubbish. LR advise not to change the sensor separately (likely due to liability over anything else) and don't sell it themselves. However, it is readily available elsewhere.

I had the disco fault one more a couple of weeks after that (not entirely sure why), but otherwise it's been good for months [knocking wood so hard my knuckles are bleeding!].

I'll be honest, I'm not sure the problem is gone, just hiding. Though that's partially due to the fact that I've got done issues trusting the particular indy at the moment...

Most people seem to find that it's their HPFP though unfortunately from my reading. I think the consensus is to change sensor, then LPFP, then HPFP. Starting cheap and moving up.

Noting you've done the tune, it's possible you've now brought forward a slowly failing fuel item now that you are demanding a little more from her. It seems this issue can just every so slowly get worse and some seem to put up with it for months or even years.

I've learnt a whole lot about this vehicle and engine of late. Not sure I particularly wanted to. My D1's are enough work. Hahaha

Good luck bud and let us know how you go.

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You can buy the rail pressure sensor genuine. They just don't list it for that engine. It's the same as a l494 from memory. I can dig out the receipt from when I bought I've genuine. LR didn't know it. But I was able to cross reference it and order from the dealer.

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Originally Posted by josh.huber

You can buy the rail pressure sensor genuine. They just don't list it for that engine. It's the same as a l494 from memory. I can dig out the receipt from when I bought I've genuine. LR didn't know it. But I was able to cross reference it and order from the dealer.

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I have seen one recently during some searching for return line orings.

Yeah, they are easy enough to get hold of. I found out afterwards (was rushed for time and travelling for work so the indy got the job) that they were wrong. After only 10/15mins of the Googling. Frustrating, as that rail is NOT cheap, though he did at least source a second-hand one.

The sensor itself is cheap, so if any codes thrown relate to fuel pressure I would just go ahead and replace it. It's a bit of a nuisance to do and you have to make sure it's done carefully as it is in the high pressure rail, but it is definitely DIY-able. Whether it will solve the issue is arguable. Knock on wood, mine has stopped faulting, but I get the feeling I've probably just delayed the real issue.