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Thread: Restricted performance light/egr issue

  1. #1
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    Restricted performance light/egr issue

    Hi guys, just joined this forum, and this is my first post. 2007 Jaguar S Type 2.7D
    Had restricted performance light come on for the first time about ten months ago. Did a diagnostic and came up egr valve. I decided to have both replaced. After that all good, for a few weeks. RP light came back, indicating exactly the same fault. After taking advice I replaced the battery. Excellent, everything fine, well for a few months. RP light returned, same fault, egr valve. I read somewhere if I disconnected the battery overnight that should clear it, which it did, for about six weeks. Did the same again, cleared it for another six weeks. RP light came on yesterday, so off with the battery lead overnight, replaced this morning expecting it to be ok, but no. I can't get the RP light to stay off for more than a minute.
    Anybody had a similar problem? I love this car but it's driving me mad. Any help atall would be much appreciated. Thank you
    Last edited by StypeXS; 22-09-19 at 11:31.

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    Hi and welcome.

    Each time you disconnect the battery you are doing a hard reset. This will delete all the codes. You have been lucky that it was the egr and you did not have a different fault and the RP light staying on.

    There have been a number of people tearing their hair out trying to find the fault after doing this because the car did not have a code to help diagnose the fault.

    The cheapest way to deal with this is to buy yourself a obdII scanner. If you are going to keep the car I would buy a icarsoft JLR device. The best one for you would be https://www.icarsoft.eu/LR-V2-landrover-jaguar because you work on the diesel particle filter.

    You could also use an elm 327 which will allow you to read the engine codes for a lot less money.

    Preaching over.

    Now to try to deal with your problem you can down load the workshop manual

    http://jagrepair.com/images/AutoRepa...M-Workshop.pdf

    This hopefully will help you deal with the problem.

    Here are all the codes and what they mean.

    http://jagrepair.com/DTCforms/DTCSTART.PDF

  3. #3
    Senior Member Andy K's Avatar
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    DOes it state EGR C ?

    The front throttle like butterfly is know as EGR C . So maybe this one is at fault. ?
    XJR 2001 Pacific Blue
    Range Rover Sport 2005 Red 2.7 TD

  4. #4
    Senior Member Jim_S-V6_2004's Avatar
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    Quote Originally Posted by StypeXS View Post
    Hi guys, just joined this forum, and this is my first post. 2007 Jaguar S Type 2.7D
    Had restricted performance light come on for the first time about ten months ago. Did a diagnostic and came up egr valve. I decided to have both replaced. After that all good, for a few weeks. RP light came back, indicating exactly the same fault. After taking advice I replaced the battery. Excellent, everything fine, well for a few months. RP light returned, same fault, egr valve. I read somewhere if I disconnected the battery overnight that should clear it, which it did, for about six weeks. Did the same again, cleared it for another six weeks. RP light came on yesterday, so off with the battery lead overnight, replaced this morning expecting it to be ok, but no. I can't get the RP light to stay off for more than a minute.
    Anybody had a similar problem? I love this car but it's driving me mad. Any help atall would be much appreciated. Thank you
    .
    Hi and welcome to our forums bud.

    Are you aware of the DPF problems and the severity of diesel fuel getting into the engine oil in the sump?

    I strongly recommend doing an oil and filter change right away if it's more than a couple of months since you did the last one.

    And despite what anyone else advises on this, be absolutely sure you fill or get it filled exactly to the Max mark on the dip stick, and keep an eye on it every couple of days. If it rises it's due to more fuel getting into the oil. It only takes a litre or so before it knackers your big end bearings and your engine is gone.

    It's often due to short trips or slow journeys not allowing the DPF Regeneration cycles to complete, but others with 2.7-litre diesel S Types including my daughter in her Audi A3, lost engines in this way when they only did long high-speed journeys.

    Sorry to lay this out so strongly right away, but it's fact with these engines with Destruction Preset Fuses.

    So check your oil level right away, and also replace your engine oil and filter asap so you know where you're starting from and check the level twice a week.

    .
    Last edited by Jim_S-V6_2004; 24-09-19 at 18:04.

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    Senior Member kbizet's Avatar
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    Jim
    I can only endorse your post. I have a 2.7 unit in a XJ X358 ( now on 145k) , If the service indicator comes on saying service required in 2000 miles then I know it is probably because of oil dilution and I get it booked in straight away for an oil and filter change even if it only had a service 3 months before as Chris the jag specialist at Doncaster said to me "more frequent oil changes are better value than an engine change"
    2007 X358 2.7D exec
    previous 2002 S type 3.0 manual

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  8. #6
    Senior Member Andy K's Avatar
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    OP - Do your exhaust pipes point down to the ground ?
    or straight out the back ?
    XJR 2001 Pacific Blue
    Range Rover Sport 2005 Red 2.7 TD

  9. #7
    Senior Member Jim_S-V6_2004's Avatar
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    I believe all 2007 Diesel S Types have the DPF Andy, the breakpoint was 2006 models?

    .

  10. #8
    Senior Member Andy K's Avatar
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    Humm ok.

    The 3rd EGR is here.

    https://rover.ebay.com/rover/0/0/0?m...2F263986693585

    It restricts clean air so that EGR can take place.

    Is also used to prevent runaway, if the RPM is high enough

  11. #9
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    Quote Originally Posted by ducmon View Post
    Hi and welcome.

    Each time you disconnect the battery you are doing a hard reset. This will delete all the codes. You have been lucky that it was the egr and you did not have a different fault and the RP light staying on.

    There have been a number of people tearing their hair out trying to find the fault after doing this because the car did not have a code to help diagnose the fault.

    The cheapest way to deal with this is to buy yourself a obdII scanner. If you are going to keep the car I would buy a icarsoft JLR device. The best one for you would be https://www.icarsoft.eu/LR-V2-landrover-jaguar because you work on the diesel particle filter.

    You could also use an elm 327 which will allow you to read the engine codes for a lot less money.

    Preaching over.

    Now to try to deal with your problem you can down load the workshop manual

    http://jagrepair.com/images/AutoRepa...M-Workshop.pdf

    This hopefully will help you deal with the problem.

    Here are all the codes and what they mean.

    http://jagrepair.com/DTCforms/DTCSTART.PDF
    Hi, thanks for that info. I have the icarsoft V11 for Jaguar Land rover. Great bit of kit with lots of info available.
    I'm thinking the ecu may have a glitch which throws out the same fault periodically.

  12. #10
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    Hi, cheers for the advise. I change the oil and filter every three months. It's due for one this week actually

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