PUMA 2.4 Rough / Lumpy Idle only when cold - SCV, Injectors, EGR, MAF or MAPT

Lucas Immobiliser - is it the MT10? something like that anyway, if you search the forums for immobiliser issues you will find what I am talking about. It kicks in sometimes when they get interference (I think) from some electrical devices. Perfect example is the BP at Wallan (just outside of Melbourne) - famous for this. I pulled up for fuel one day and couldn't start the car again. I knew about this issue (but not at this site) so I went in and the very kind gentleman behind the counter turned off all the signage / equipment one by one until we found the culprit - the main price sign!!! Anyway, he turned off the sign and I started the car. He turned it back on and I couldn't start the car. Happened to me 3 times, twice at servos and once (and the first time) outside a pub. Make sure you get the EKA code of the car (4 digit code) and the alarm / immobiliser reset procedure and you will be able to work around it even if you can find the culprit. You really need this if you go bush as well.

At 160k mine is still fresh as a daisy (aside from this issue which is really annoying) and I love it but I service every 5k and if the owner of the one you are looking at has any knowledge / respect for the car they will do the same.

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Originally Posted by titus

Make sure you get the EKA code of the car (4 digit code) and the alarm / immobiliser reset procedure and you will be able to work around it even if you can find the culprit. You really need this if you go bush as well.

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It's MY09 model.... Can u get this issue disabled within the ECU either when u get a preformance remap or via your local LR Mechanic Shop?

Not sure if the owner would that EKA info as he's the 2nd owner I think..... If he doesn't, where can one source this info from?

Rob

I think you can disable the immobiliser with the BAS remap but not 100% as I haven't ordered one yet (just about to) and you can get the EKA from LR you just need to prove you own the vehicle. The one I had in my manual turned out not to be the EKA code, which I found out rather embarrassingly parked directly outside the front of the pub that it stopped at with me sending the alarm into fits, over and over again!!!

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Originally Posted by titus

I presume the EGR is closed as I am going off the reading from the OBD which says the EGR is 0% commanded open - which I read as 100% closed. And I presume that means that no exhaust gas is recycled at this point. I was thinking the EGR as well. Was going to grab a BAS RPC to disable the EGR

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I'm only guessing, but I know from my own 2009 2.4 that the EGR gets clogged up with constant city running and needs a good long highway run - at least an hour at 100 kmh - to burn off the crap and be clean.
I just wondered if your mother's 400 failed start antics had clogged up the EGR and it needed to go through its burn cycle so the vehicle would run properly.
Has it been for a good long highway run recently? Mine gets several long highway runs a month and it's purring along nicely.
As I said, it's only a guess.

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Originally Posted by DiscoMick

Has it been for a good long highway run recently?
As I said, it's only a guess.

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No it hasn't - mainly short trips or low speed trips (farm work). I'll give it a good run tomorrow and see how that goes. Thanks for the suggestion!

Have you checked out the air side of things? Obviously sound s like an issue with fuel or air as it’s running rough.
i know the turbo actuator can get a bit sticky. also check the air filter box is on properly. And there’s nothing amiss with the intake blockages etc.

One issue I had with mine, surging and hunting after I had it serviced, turns out the Speedo sensor wasn’t plugged into the little gear pick up thingy on the gearbox properly, didn’t throw a code but just drove like the turbo had a mind of its own and wanted to stall when idling. Was plugged back in and back to normal.

They are pretty sensitive to fuel, you can feel it big time if your forced to fuel up at a budget servo, bp ultimate or shell it runs really well.

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Originally Posted by titus

I think you can disable the immobiliser with the BAS remap

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Yep, I turned mine into nothing more than a central locking system.
living in Wallan, that BP is one that I frequent.

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Originally Posted by titus

No it hasn't - mainly short trips or low speed trips (farm work). I'll give it a good run tomorrow and see how that goes. Thanks for the suggestion!

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if your long run is in my direction I can plug the GapIID and see if there are any codes the cheapie missed.

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Originally Posted by jackdef90

Have you checked out the air side of things?

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I have but I think I am going to do it again more thoroughly. Haven't checked the turbo actuator though. I'll read up on how to do that.

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Originally Posted by jackdef90

turns out the Speedo sensor wasn’t plugged into the little gear pick up thingy on the gearbox properly

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I'll be sure to check that as well - as soon as I find it!!

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Originally Posted by jackdef90

They are pretty sensitive to fuel, you can feel it big time if your forced to fuel up at a budget servo, bp ultimate or shell it runs really well.

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I am the same - only ever BP or Shell

Thanks for the suggestions!!

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Originally Posted by SSmith

Yep, I turned mine into nothing more than a central locking system.
living in Wallan, that BP is one that I frequent.

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Good to know - you happy with the BAS remap?