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• 
  My Citroen C4 automatic goes into 'Limp' mode despite having a new stop light switch - why? 20 Jul 2010 (Ask HJ)
  My Citroen C4 automatic is a sweet car and the automated manual transmission works superbly and smoothly. My 56-plate example is ex-Motability and has...
• 
  Talk reaction 10 Apr 2010 (Ask HJ)
  I know you have spoken out about clutch/dual mass flywheels before but the problem is very widespread. How can something be done about it? Is it fair that...
• 
  Volks will torque 20 Mar 2010 (Ask HJ)
  I have an 2007 2.0 TDI DSG and have just read the following in your ‘car by car breakdown’: “Early 2.0TDI DSGs suffer from ECU programming that reduces...
• 
  Primeraquai? 10 Oct 2009 (Ask HJ)
  I have a 2004/54 Primera DCI that I purchased about a year ago with 36k miles on the clock and full Nissan service history. It has run well, and for a...
• 
  Aut so simple 7 Mar 2009 (Ask HJ)
  I have an 04 Ford Focus Estate automatic and for the last 6 months of last year the red warning light kept coming on and it would sometimes alternate with...
• Berlingo - Very noisy tickover. 4 Aug 2007 (Forum)
  breakdown and the garage replaced the final two injectors. The car ran OK for a month or so before breaking down with the same symptoms. However, this time the fault cleared itself after being turned off and allowed to "rest". The car was taken to a main dealer who interrogated the ECU and found
• Peugeot 306 Auto Struggling With Revs 14 Nov 2003 (Forum)
  Hi guys. I recently bought a second-hand 306 1.6 Auto (V reg. 2000), and it's performed like a dream up until recently. The EMU/ECU light keeps "flickering" on and off and on occasion, when I come to a stop, the engine will stall. Today, things got markedly worse still as I when I accelerated
• BMW 1 Series - BMW 1 Series - advice needed. 28 Aug 2021 (Forum)
  . Since it has been returned to the unit after it had being recovered. His diagnostic kit cannot connect to ECU. So he  had an auto electrian look at the electrics of the car (free of charge). He found fault with some wires from the ECU to the engine were in his words frayed. Which he then replaced
• PSA - More recalls 8 Dec 2023 (Forum)
  in the calibration software of the electronic engine control unit (ECU). “An incorrect value may be given when the data is processed by the vehicle and this can result in nitrogen oxide (NOx) emissions that are above regulatory limits”   Presumably the Vauxhall equivalent
• Please help me decide next van purchase 10 Nov 2021 (Forum)
  Hi there. Im in the market for buying a van. My trusty fiat scudo has just been scrapped due to failing mot rust, ecu and exhaust problems.   I am wanting a transit or vivaro van about 2008 -2010 age  and about £4-5k But i just cant decide... i love
• 2011 Suzuki Swift - Scrap or repair? 11 Jun 2021 (Forum)
  controller unit and Keyless start control unit to 'see if it helps' as they are unsure of the issue due to an unexpected response on the ECU. They say it will then need reprogramming and resting but that other work may need doing if these modules don't sort the issue. It has done me a good service
• 2010 Vauxhall astra 1.7 cdti - 2010 astra BCM issues? Remote locking doesn't wor 6 Apr 2021 (Forum)
  and can’t quite understand why it won’t work. Is this likely to be linked to having a different BCM? Will a central locking receiver be needed or will it simply need a new programmed key? The MD say they can't read the ECU (for a recall)  because the BCM was changed, at some point
• 2005 Ford Fiesta, 1242cc, 3-door, petrol - Radiator Fan Problem 15 Aug 2020 (Forum)
  . The plug into the fan is okay, the plug that goes into the engine/ECU is okay. Plug number 3 is hanging loose. It looks like the unit it plugs into has been damaged. The broken unit has a couple of other wires going into it. I need to order the broken unit but I do not know what its
• 2011 Suzuki Swift - Scrap or repair? 22 Jun 2020 (Forum)
  controller unit and Keyless start control unit to 'see if it helps' as they are unsure of the issue due to an unexpected response on the ECU. They say it will then need reprogramming and resting but that other work may need doing if these modules don't sort the issue. It has done me a good service
• Mitsubishi Colt 2006 CZ2 Di-D Diesel AUTOMATIC - Clutch Actuator 14 Mar 2020 (Forum)
  ?   Does the ECU need remapping or any set up required by a Mutsubishi Garage please? Any help would be most welcome. Thank you,  Vinnie.
• SAAB 9-3 Sportwagon - Limp mode 19 May 2017 (Forum)
  beyond 2000rpm. It's MPG has noe risen to 53.9 which is strange. The AC works intermittently too. This vehicle has become very hard to drive and I have tried to think what might be wrong but not succeeding. Want to try and take out the ECU and have it checked. Would appreciate suggestions and cures
• Land Rover Discovery 4 - Should you remap your can/van/4x4/motorhome 9 Oct 2015 (Forum)
  your vehicle via the OBD2 socket which is a much safer way then having your ECU removed and possibly damaged or worse broken costing 1000s to replace .   (Edit - sorry, missed that attempt at free advertising when it first appeared. The market for remapping cans may not be all
• Ford Mondeo - Cruise Control Fault 19 Jul 2015 (Forum)
  to them was to say the least shocking - aparently they reckoned the parts were £100 if it was the switch's and if it's the ecu it'll be £1,800 + . Is this correct or can I source the relevent parts & get them fitted cheeper
• Ford Focus 1.6 TDCI 2006 - Exhaust gas temperature sensor 23 Jun 2015 (Forum)
  connector, one receives 5 volts (from the ECU) and the other zero. Ideally I'm looking for a temperature vs resistance or voltage curve. Ford want almost 150 quid for a replacement so if any of you know another cheaper supplier I'd be grateful. Thanks in advance. Dan
• Vauxhall Corsa C - central locking and immobiliser 10 Nov 2014 (Forum)
  looking at swopping things over to get 2 working keys. It's my daughters car and she would like the pretty white instrument cluster too...her words not mine! If I keep the ecu on the engine from the sxi, swop the immobiliser circuit boards and the instrument cluster. Is all I need after