Hercu Posted September 7, 2018 Share Posted September 7, 2018 I have a 2006 Disco 3 TDV 6 2.7 S and most recently I received an 'Engine System Fault'. What I have noticed is that when I press the accelerator pedal to a point where the vehicle changes down to lower gear, then the car shows 'Special programs off' and goes like into limp mode and there is no acceleration after it reaches this point. I then switch the vehicle off and after a half a minute I restart, the vehicle has gone out of limp mode and I can move on again. I can even sit it to Idle half a minute and can pull off with full power again but the moment I floor it the same symptoms appear and hearing kind of whistle New Sub +/- 2000 km New Battery…Recon Turbo…Refurbished injectors Cleaned MAP and MAF sensors EGR blanked and butterfly removed. Checked for split turbo hose and Actuator is moving freely Show “coolant level low” and awaiting new container with float sensor Changed oil on 1000 km, new filters Air/diesel/ Oil Auto box new filter and filled Dexron 6 and Dr Tranny Could it be Oxygen sensors ??? Quote Link to comment Share on other sites More sharing options...
reb78 Posted September 8, 2018 Share Posted September 8, 2018 (edited) Brake switch. Change that and i reckon all will be solved. Edited September 8, 2018 by reb78 1 Quote Link to comment Share on other sites More sharing options...
Ooops Posted September 9, 2018 Share Posted September 9, 2018 (edited) Hi Hercu Have you had water ingress at some time, perhaps blocked sun roof drains causing wet carpet & water / dampness in the sills? The reason I ask is that there's a notorious wiring junction that is easily corroded under such circumstances. It throws up an enormous range of random faults & symptoms such as HDC, gearbox change issues, special programmes unavailable and a host more. I had it on mine. Its a red wire forming a "Y" connection in the loom bundle located in the drivers footwell close to the kick panel. I'm really sorry but I'm struggling to find either a suitable link or photos of it at the mo. Ureka, only an hour later 😁 The thread can be found at https://www.disco3.co.uk/forum/transmission-fault-hdc-traction-control-off-etc-137607.html?highlight=U0416-86+(2F)&start=15 HTH Untitled.tiff Edited September 9, 2018 by Magnet6x6 zpellin init 1 Quote Link to comment Share on other sites More sharing options...
Hercu Posted September 10, 2018 Author Share Posted September 10, 2018 Reb 78 Thank you Brake switch ordered and really hope it will solve this irritating problem Magnet 6 x 6 Totally possible and worth a check Thank you so much. Quote Link to comment Share on other sites More sharing options...
reb78 Posted September 10, 2018 Share Posted September 10, 2018 It did on mine. I had a very similar problem - every time i hit the kick down, the suspension would lower, the acceleration was limited, speed was limited etc etc. New brake switch cured it - for £15 or so it is worth a try. 1 Quote Link to comment Share on other sites More sharing options...
Ooops Posted September 12, 2018 Share Posted September 12, 2018 On 9/10/2018 at 1:15 PM, Hercu said: Reb 78 Thank you Brake switch ordered and really hope it will solve this irritating problem Magnet 6 x 6 Totally possible and worth a check Thank you so much. You're most welcome. Let us know how you get on 1 Quote Link to comment Share on other sites More sharing options...
Hercu Posted September 12, 2018 Author Share Posted September 12, 2018 Thank you once again Found the splice in good shape with no corrosion....resealed Opened the module connections and slight green corrosion on pinns ....cleaned with Electro clean and refitted Now just awaiting new brake switch to see if problem solved... Started but after a while showed "Engine System Fault" again Did not yet take it for test drive Alternator charges at 14.9 volts... Find some wires removed on connecter as per pic...Don't know for what it was originally (Red Circle) Also found the carpet to be wet and will fix the sunroof drip off...whilst open Quote Link to comment Share on other sites More sharing options...
Hercu Posted September 17, 2018 Author Share Posted September 17, 2018 On 9/8/2018 at 10:04 AM, reb78 said: Brake switch. Change that and i reckon all will be solved. On 9/9/2018 at 11:08 AM, Magnet6x6 said: Hi Hercu Have you had water ingress at some time, perhaps blocked sun roof drains causing wet carpet & water / dampness in the sills? The reason I ask is that there's a notorious wiring junction that is easily corroded under such circumstances. It throws up an enormous range of random faults & symptoms such as HDC, gearbox change issues, special programmes unavailable and a host more. I had it on mine. Its a red wire forming a "Y" connection in the loom bundle located in the drivers footwell close to the kick panel. I'm really sorry but I'm struggling to find either a suitable link or photos of it at the mo. Ureka, only an hour later 😁 The thread can be found at https://www.disco3.co.uk/forum/transmission-fault-hdc-traction-control-off-etc-137607.html?highlight=U0416-86+(2F)&start=15 HTH Untitled.tiff On 9/12/2018 at 12:13 PM, Magnet6x6 said: You're most welcome. Let us know how you get on Thank you Progress on Fault Finding or either not finding major wrongs The Split off was not corroded and there was little corrosion on pins off Module Cleaned with Electrical cleaner Battery is new and Alternator Charges on 14.7 volt Still awaiting Brake light switch as final hope to solve this issue Next Report what have been done Received Brake switch and Installed Had bonnet open warning ....... installed new bonnet switch Coolant level low warning........ Got new expansion tank with sensor and installed Checked all bulbs and seems to be original...no black recidue or any sighn of poor contact But still I get the bong..."Special programs Off" and total loss of power if accelerating hard I can at that speed (120 km/h) go to Neutral without switching ignition off/on allow 5 seconds and the engine will rev up normally...and I can continue driving normally Slow ecceleration does not cause the vehicle to cut power..Just when I put my foot down Tried on speed control+++++ (from set 100 Kph ++++++++and somewhere 130 Kph it cuts power)..means it is not the eccelerator pedal switch/sensor ???? Now awaiting proper Diognostic scanner and hopefully can fine this "ghost" Quote Link to comment Share on other sites More sharing options...
Bowie69 Posted September 17, 2018 Share Posted September 17, 2018 Sounds like you've followed a very logical path, good luck with the next steps. 1 Quote Link to comment Share on other sites More sharing options...
Ooops Posted September 17, 2018 Share Posted September 17, 2018 I'm not familiar with the TD6 so forgive if this is a silly question but is there any chance that the Turbo hose is failing? I had a D1 300tdi and the inside of the turbo hose delaminated. Under heavy revs it closed up causing the same sort of symptoms Only found it by reving the engine from under the bonnet and fidling Just a thought, HTH 1 Quote Link to comment Share on other sites More sharing options...
Hercu Posted September 17, 2018 Author Share Posted September 17, 2018 16 minutes ago, Magnet6x6 said: I'm not familiar with the TD6 so forgive if this is a silly question but is there any chance that the Turbo hose is failing? I had a D1 300tdi and the inside of the turbo hose delaminated. Under heavy revs it closed up causing the same sort of symptoms Only found it by reving the engine from under the bonnet and fidling Just a thought, HTH It is totally possible..And I will investigate...I changed a turbo once on my Di due to a delaminating turbo hose... Only by revving I could not see but need to take it off and inspect thoroughly.. Quote Link to comment Share on other sites More sharing options...
Hercu Posted September 19, 2018 Author Share Posted September 19, 2018 Got a super link where the LPFP comes to question Checked the stream from the Schrader Valve and truly poor.. According to Robbie on Disco 3 UK forum should have at least 0.5 bar and the amps drawn close to 9 Amps. Will get hold of a low pressure gauge and test but my gut feel says that little stream is not even 0.1 bar Quote Link to comment Share on other sites More sharing options...
reb78 Posted September 19, 2018 Share Posted September 19, 2018 Interesting! Sorry the brake switch didnt sort it. At least you have a spare of a part that commonly fails now! 1 Quote Link to comment Share on other sites More sharing options...
Ooops Posted September 20, 2018 Share Posted September 20, 2018 11 hours ago, Hercu said: According to Robbie on Disco 3 UK forum Hercu if you've got Robbie on the job you couldn't be in better hands Good luck 1 Quote Link to comment Share on other sites More sharing options...
Hercu Posted September 20, 2018 Author Share Posted September 20, 2018 3 hours ago, Magnet6x6 said: Hercu if you've got Robbie on the job you couldn't be in better hands Good luck Magnet....Truly Robbie knows his Disco's and I am "eating" up his info on the internet... Although we are worlds apart I can feel the integrity and enthusiasm of that guy on his reports and writings... Kind regards Quote Link to comment Share on other sites More sharing options...
Ooops Posted September 20, 2018 Share Posted September 20, 2018 1 Quote Link to comment Share on other sites More sharing options...
Hercu Posted September 25, 2018 Author Share Posted September 25, 2018 Think I have found my "Gremlin" Quote Link to comment Share on other sites More sharing options...
Bowie69 Posted September 25, 2018 Share Posted September 25, 2018 Black sludge? 1 Quote Link to comment Share on other sites More sharing options...
Hercu Posted September 25, 2018 Author Share Posted September 25, 2018 5 hours ago, Bowie69 said: Black sludge? Bowie....Seems like Algae...Cleaned out and reinstalled plus new filter but the loss of power on acceleration is still there Diagnostic fault code P132B showed ...Turbo was reconditioned 2 months ago..Actuator moves freely.. Injector 3 is also not in Spec (Bit High) Quote Link to comment Share on other sites More sharing options...
Ex Member Posted September 25, 2018 Share Posted September 25, 2018 Fungus, not "algae". Probably throughout the system. Clean out the tank and run a boicide through. Hopefully nothing expensive was killed along the way. 1 Quote Link to comment Share on other sites More sharing options...
Hercu Posted September 29, 2018 Author Share Posted September 29, 2018 New Diesel filter installed after cleaning LPFP filter/strainer All the quick fixes tried to no avail...The dreaded "Engine System Fault PO132B" is glued to the scanner Cleared and direct after start it is back...The vehicle drive well on normal acceleration but the moment more power is needed and pedal position 60% + it goes to limp.. Everything shows back to Turbo Actuator and although I can hear the stepper motor whining there is very little movement on the arm itself.. I made the wire hook and can push/pull the actuator at most 3 mm...I have seen it should move about an inch = 2 cm.. The turbo was reconditioned 3 months ago... Doused it with (Q 20/W40) for 2 days now without success... The removal of turbo and maybe replacement seems to become a reality now....??? (15 hrs in sito) 1 Quote Link to comment Share on other sites More sharing options...
lo-fi Posted September 29, 2018 Share Posted September 29, 2018 I gather it's in an awkward position to get to, but on other vehicles I've seen people drill a hole in the exhaust housing to pipe a little oven cleaner into, which clears the carbon sludge jamming the vanes and saves taking the turbo off. Drill and tap for a taper thread bung to seal it back up after. Whether that's any good for emission control gear downstream I couldn't vouch for, though! Can you get any more movement just working it back and forth with the wire? Quote Link to comment Share on other sites More sharing options...
Hercu Posted September 29, 2018 Author Share Posted September 29, 2018 1 hour ago, lo-fi said: I gather it's in an awkward position to get to, but on other vehicles I've seen people drill a hole in the exhaust housing to pipe a little oven cleaner into, which clears the carbon sludge jamming the vanes and saves taking the turbo off. Drill and tap for a taper thread bung to seal it back up after. Whether that's any good for emission control gear downstream I couldn't vouch for, though! Can you get any more movement just working it back and forth with the wire? Lo-fi Good tip thanks....Although something feels awkward jiggling it with the wire...it is like a solid "clunck"...like it gets stuck on heat shield or maybe something was dropped, Nut, washer etc and got stuck between actuator arm and turbo body or heat shield....I was sitting, jiggling the turbo with my head buried in the wheel well for 2 hours this morning...after dousing it with Q20/W40 for 24 hours As said the turbo was reconditioned with the installation of the new sub 3 months ago and EGR's blanked and cat removed the vehicle only did about 2000 km and each time filled applied 2So 500 ml per tank After installing new engine..3 months ago..Replaced Tappet covers......Injectors was taken out in sito and tested..replaced...Taken out again and another refurbished set installed... Somewhere something went wrong....!! I am looking to buy a probe cam to try and see at the back of the actuator arm..(Already quoted new turbo) Quote Link to comment Share on other sites More sharing options...
GrgaRRS Posted January 10, 2019 Share Posted January 10, 2019 Hi Hercu, did you solve your problem with limp mode?? I have problem with exact thing for over three months, exact code p132b , I instal new turbo last month, and problem with limp mode and p132b code is still here. I appreciate any help, this driving me nuts😰😤 I tried all the options I've read in various forums, that code is closely related to turbo accutator but the main problem is that I put new turbo and problem is still there🤷♂️ I did not remove cat, can that be a problem that cause limp mode?? Quote Link to comment Share on other sites More sharing options...
Becky Posted November 5, 2019 Share Posted November 5, 2019 Please can someone help me have a problem just about the same with my car garage has had it 6 months and can diagnose it Quote Link to comment Share on other sites More sharing options...
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