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  Ford Focus management light 2 Jan 2013 (Ask HJ)
  I own a 2003(53) Ford Focus TDCi, and over the past months - now and then even mid journey - it goes a bit sluggish, as if turbo not kicked in! Then lots...
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  Who is at fault for the light failure on my Mondeo? 5 Sep 2012 (Ask HJ)
  I had the AA out to fix my rear lights - they then realised that the parking lights weren't working and the bonnet catch wouldn't close, they fixed this...
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  Why is my Volkswagen Polo's engine cutting out whilst I'm driving it? 2 May 2011 (Ask HJ)
  I bought a new Volkswagen Polo SEL 1.6 CR/DPF 90PS 5-speed manual in November 2010. It now has 1,500 miles on the clock. It stalled at a junction soon...
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  Who is to blame for the misdiagnosis of an airbag fault? 6 Jul 2010 (Ask HJ)
  A few weeks ago the airbag warning light in my 2004 Audi A3 2.0 TDI came on. I took it to an independent Audi specialist for diagnosis, hoping it would...
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  No recollection 1 May 2010 (Ask HJ)
  I'm wondering if the furore over Toyota and Honda recalls may be a bit over the top. My 2006/56 Focus has had two recalls, one for loss of braking effectiveness...
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  Flywheels of mass destruction 10 Oct 2009 (Ask HJ)
  I am having trouble with my Vauxhall Zafira 1.9CDti Sri, which is registered 06 plate. I bought the car in January 2007. In January this year I had to...
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  Doom mass flywheels 19 Sep 2009 (Ask HJ)
  I bought a second-hand Mondeo TDCi reg 04 in December 2007 from a local main dealer with 46,000 mile on the clock. I bought a two-year guarantee with...
• Ford Fiesta (2002 - 2008) - 04 1.4 TDCi Engine Swap 9 Jul 2023 (Forum)
  , not at all, now the engine management light is on and it will not turn over more than 3 times then it stops. Somebody told me they are not the same, and i'll need a later ECU to run it, is there any end to it,can we not work on our cars any more, I would welcome any suggestions, thanks
• BMW M135i - New car broke down less than 60 miles 14 Nov 2022 (Forum)
  ' fault. Having spoken to a specialist this is a fairly serious fault and the vehicle should not be driven. The fault was logged in the ECU over 1000 miles before it was delivered to me so was 100% there prior to purchase, just not showing in vehicle. I am calling the dealership tomorrow, I need
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  Need a reliable, used car for Under £6k - any suggestions? 4 Sep 2020 (Ask HJ)
  I am replacing my old 1.2 petrol Vauxhall Corsa, as it has developed a problem with the engine. I would like a similar-sized car, that is cheap to run...
• BMW 330d - Disabled EGR results in signifcant DPF mileage 24 Apr 2020 (Forum)
  it to be as reliable as possible and given its a BMW any jobs are not necessarily going to be cheap. I am a bit of a numbers geek and use the bimmertool app coupled with a bluetooth v-link in the ODB2 port so can see everything that the ECU sees. Having had the EGR function removed from the vehicle, the amount
• Opel Astra GTC 1.4T (SRi)(2016) - Turbo engine issues? 2 Jul 2019 (Forum)
  in April 2018)... “There were some issues with early 1.4Ts, but this appears to have been solved with a re-specified oil. Was Dexos 2, now Dexos 1 Gen 2.” “As another poster pointed out there were problems with the new Astra turbo engines that were solved with an new oil spec and an ECU upgrade, if you
• SEAT Leon SC - Non-starting Seat Leon S 03 1.6 16v 1 Aug 2016 (Forum)
  won't work, then finally shoots up to about 1k revs and goes. I have given up on working the issue out, so passed it to my mechanic who is also bemused as to what is causing it. Sparks, coil and ht leads are all OK. New alternator and battery has been fitted.  O2 sensor and ECU maybe faulty
• Vauxhall Zafira - 56 Zafira B 1.6 Petrol power steering issue 12 May 2015 (Forum)
  up, still same issue found out its electronic power steering on this one... (hence ex!!) Took it to a recommended garage who said the key wasnt communicating with the ECU, he reprogrammed the key and it came steering instantly came back, 3 weeks later same issue. 3rd party key that came
• Renault Clio 1.4i 16v 2001 - Stalling at junctions, rough idle, cut out 30 Nov 2014 (Forum)
  I have finally solved my daughters cars problems.  If you have arrived here you will have already heard about ECU cages cutting into wiring, generally dodgy wiring and TDC sensors.  None of these applied to this car. Wiggling stuff under the bonnet led me to suspect
• Citroen Xsara Picasso - Dash warning drivers door is open and not locking 16 Feb 2014 (Forum)
  months back as i needed to replace the ecu unit. but locking the doors with my key has also not been an issue (I have only used the ignition key in the drivers side door).  The doors don't seem to be locking  and whilst im driving the warning light for the drivers door being open
• Vauxhall Astra G Petrol (1998 - 2004) - 2002 1.6 8v Surging and stalling 19 Jan 2014 (Forum)
  to hook it up to their testing equip. Did this and it found no faults codes. Have read here that other Astra owners have had problems with the EGR valve but was told by Vauxhall and my mechanic that the fault light would show on the dash. Also read here that there has been a ECU update from v5 to v6
• Ford Fiesta - Ford Fiesta (Endura-E) over-revving on startup 25 Nov 2013 (Forum)
  , and disconnecting the sensor on the gearbox makes no difference either.   I've put in a new air filter, new IAVC, used electrical cleaner on all the sensors' plugs and sockets, new breather cap and reset the ECU... All to no avail. Bearing in mind that the car had new oil less than six months ago
• Peugeot 406 hdi - MAF sensor faulty 20 Jul 2013 (Forum)
  filters etc.  I did have the ecu codes read and it was showing MAF sensor short so we cleared the code but still no power.  There is no checklight on the dash.  i decided to clean the maf sensor but again still no change.  I then removed the plug from the maf sensor and decided to take
• Volkswagen Golf V - Misfire only on subsequent journies 11 May 2013 (Forum)
  be a mechanical fault as the car will drive perfect all day as long as ignition is left on. Is there a sensor which feeds to the ECU only on ignition? The cylinder No:3 and its wiring loom was replaced by VW only a year ago (£850) after their own Diagnostic check  threw up the exact same fault