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• VW Golf Problems 23 Jul 2009 (Forum)
  The car was fine yesterday but today it did exactly the same thing again. Personally I think it is either a faulty sensor or a fault in the ECU (I think some Bosch ECUs exhibit this kind of fault). Has anybody else experienced anything similar?
• Vauxhall Vectra B facelift (1999 - 2002) - 01 1.8 intermittent starting fault 24 Feb 2009 (Forum)
  I'm having a nightmare with my vectra it has an intermittent fault on starting, sometimes it will start no problem othertimes it will turn over then flash up the car spanner light indicating an immobiliser fault i've had the imobiliser ecu changed but it is no better. When my brother uses the car there doesn't seem to be a problem when i use it it leaves me stranded in all sorts of places refusing to start. The only suggections that i've had suggest changing the ECU, but i have also been told that you cannot fit a second hand unit.
• Renault Scenic (2003 - 2009) - 05 1.6 Starts on 4 cylinders but only running on 2 21 Nov 2008 (Forum)
  Pencil coil has been replaced but issue not resolved. Further testing is being done today but suggested that probability that ECU will need to be replaced. Concerned about having ECU replaced if there is no certainty that this is the cause of the problem. Would be very grateful for any thoughts on this. (Apologies - posted this in discussion forum in error)
• Peugeot 306 (1993 - 2001) - 1998 1.4 petrol - High idle speed 26 May 2008 (Forum)
  Can anyone tell me if this expensive and if the information Peugeot have given me is correct? My garage said no ECU fault codes were showing so does this mean the ECU is OK or should I be more worried? Thanks All
• Yaris 1.0 Petrol Engine Cut out 13 May 2007 (Forum)
  The indicator light flashes a few times, and other dashboard lights come on. The car has been back to the dealer and an ECU has been replaced, but the problem still persist. No fault code was recorded by the ECU. Any clues trying to get it fixed before the warranty runs out? I have told the friend to get rid of the car if the dealer can't fix it.
• Astra 2l DTI - ECU light problems 7 Mar 2007 (Forum)
  I have an ongoing issue with a 2L Astra DTI which vauxhall seem unable to solve. I have so far had the EGR valve and Mass Airflow meter replaced. The issue...
• Efficient driving technique 29 Sep 2006 (Forum)
  My question is will the computer/ecu cut off the petrol when the accelerator is not depressed, or is my car too old to have such a system? In my case, would it be better to leave it in gear and ease off the accelerator, or to continue leaving it in neutral?
• '98 Pug 306 1.4 keeps juddering at idle 12 Apr 2005 (Forum)
  It also sometimes seems not to have the same amount of power that it use to i seem to have to give it more gas when accelerating as it feels sluggish and sometimes judders. Did not know if it was the ECU unit or the coil. If its the ECU would a second hand one repair it and how do youe remove it. Hope someone can help. Cheers
• Astra 1.4i lack of engine power. 9 Feb 2004 (Forum)
  before I take it back to the Vauxhall garage (reluctantly)can anyone give me any pointers that I can tell them to look at ? (settings in the ECU ?) This way I can tell them to look at specific areas, hopefully stopping them just plugging in a laptop and say, oh it's running fine. Any advice welcomed Phil
• Vauxhall Cavalier 8 Jul 2002 (Forum)
  and code 44 came up - faulty oxygen sensor. This I changed - fault codes are now clear but problem is still there but except now the ECU light does not come on. Any ideas would be much appreciated.
• Punto stalling 3 Sep 2001 (Forum)
  The Punto has a single point injection system which appears to consist of a single injector squirting metered doses of petrol into the throat of a carburettor body (devoid of bowl, float & jets) in response to a bewidering array of sensors whose data are processed by an ECU on the inner offside wing. I suspect overfuelling and wonder: Has the oxygen sensor in the exhaust pipe failed? Is the engine temperatue sensor/ECU failing to reduce the petrol doses once the engine is warm?
• opel corsa c 2004 - nct 26 Jan 2015 (Forum)
  Will my car pass its nct with the engine light on and the oil light flashing i think its down to my ecu 
• VAG PD Diesels 9 Dec 2002 (Forum)
  Can anyone explain to me the difference between the 115bhp and 130/150bhp versions? Are they mechanically diferent or is it just a difference in ECUs, ie chipped? Ta David
• What is Krypton Tuning? 5 Oct 2002 (Forum)
  What is Krypton tuning? Does it have any place with modern ECU controlled cars, multi point fuel injection and lambda sensors etc? Thanks Ben
• Land Rover Range Rover 'Classic' (1970 - 1995) - 88 3.5 cutting out 30 Jul 2019 (Forum)
  there is a cold start injector on the plenum chamber. When I had starting problems a couple of years ago (finally traced to unclean connector on the ECU) someone on here told me to disconnect it. I did so, and the thing has started perfectly ever since - until now. I've also taken the obvious step of cleaning the ECU connector again. Any ideas, anyone????
• Fiat Panda - Is £225 diagnostic fee for my 2008 Fiat Panda ok? 24 Oct 2015 (Forum)
  At the time i had already moved the car twice and didn't feel i had much choice. So i said okay. They phoned me back to say there was water in the ECU and wiring at it would cost me £2700 pounds to fix. This in effect meant my car was a write off. I took the car away and went to the garage at the end of the road where it was stationed. The guy there cleaned up the top of the ECU, fixed a corroded pin and it works.
• Peugeot 207 - Engine warning light 28 Oct 2014 (Forum)
  My wife averages 200 miles per week and does her twice weekly trip of 90 miles  on a fast dual carriage in 90mins. We took the car to the main agent and after 2 hours of diagnostics the ECU fault codes were P1336 and P1340 but they didn't have a clue as to why, as the car was running perfectly. They contacted Peugeot Technical who advised that the error codes indicated a "misfire caused by short journy use" despite being told by the main agent that there was no misfire and  that the car was mainly used on fast journeys.The main agent  have reset the ECU and the engine management light is now working normally.
• 1.1 Citroen Saxo 1999 - Cutting out and then not even ticking over to start again! 16 Mar 2010 (Forum)
  This morning as we scrapped the ice off the car, it cut out after starting first time, again as usaul the car started straight up again... once we begain to drive out of the carpark it did it again this time failing to start at all... not even ticking over! We have a feeling this may be down to the ECU but only bought the car as a cheap run around so not spending £500 on a new ECU.. thats almost what we paid for the car! Please can someone give me some good news or other possible problems i could look at before the ECU?
• Peugeot 306 (1993 - 2001) - 1998 1.4S - intermittant ECU light 3 Feb 2008 (Forum)
  Hi Can anyone help with my problem please (Peugeot 306 Meridian 1.4 S reg petrol) The ECU light on my my peugeot 306 intermittantly comes on and the engine jutters, but only after travelling on a motorway for about half an hour. The light goes off again but the engine continues to "jutter".
• rover 420 GSI (high Emissions) 6 Sep 2003 (Forum)
  But the odd I found was the throttle postion sensor, supply voltage 5v, at idle it should be 0.5, but it was 4.5v, and at full throttle was only 4.8v. so I disconnected the sensor wire to the ECU and found I had the same value, checked the device on ohms and the resistance does change. But I remember some years ago having a MG EFI montego and these used to suffer from blowing the earth pin inside the ECU, normally this was easy to repair, (I use to be a TV & Video Technician so I have all the skills with the soldering iron), I wondered if this ECU suffers from the same problems, I know the Montego one could be done buy using a battery charger.