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• 
  My Peugeot 106 diesel won't start after running out of fuel. Does it need to be bled? 27 Aug 2010 (Ask HJ)
  My Peugeot 106's battery went dead so I gave it a jump start from another car and it started straight away. I put a new battery on it, but it had run out...
• 
  Big dripper 20 Feb 2010 (Ask HJ)
  I am faced with a bill of over £600 for a replacement ECU in my wife's MKI 2004 Skoda Octavia VRS, as it failed due to water ingress. Is there some sort...
• Vauxhall Astra G Petrol (1998 - 2004) - 2000 1.6 8v No spark after timing belt change! 30 May 2008 (Forum)
  that could fail (sensors, wiring, ECU, etc..). and cause this fault. I discovered on the internet a way of reading the ECU fault codes by counting the blinking ECU light on the dash and I got three fault codes : 0230 (fuel pump), 0105 (inlet manifold pressure) & 0443 (unknown). At this stage I gave up trying
• CORSA SXI TWINPORT 2010 - ECU ISSUE 22 Apr 2017 (Forum)
  £40 on it for a Diagnostics report to be done  (in which they found no issue & reset all systems). I took it back and it failed again, I took it back to the same garage and after two weeks they told me that "it's an ECU fault and it fails on 4 control points". They haven't done anything
• Ford Fiesta 1997 - 1.25 -Fuel cut? 2 Sep 2014 (Forum)
  Hello everyone, I have a 1997 MK4 Fiesta 1.25 L (DHA engine). The car has bad fuel economy, around 25mpg (US). The car is totally stock regarding the engine and ECU. I do a lot of tuning on aftermarket ECUs like Megasquirt, Motec, Link G4+ etc so I know a thing or two. I thought
• Vauxhall - Vivaro 02 1.9 100ps ECU light speedo problems 12 Jul 2014 (Forum)
  booked the van for a tech2 fault test this week,but was wondering if any of you guys could give me some advice before the dealer starts saying it needs a new ecu etc. would it be worth buying a odb2 disc,i am not sure if it will work with a 2002 vivaro though? or i have seen the tech2 readers/software
• Vauxhall Zafira 1993 petrol - Engine emissions light - very poor performance 4 Sep 2011 (Forum)
  Hello Have a problem with very poor performance at speed and especially going up hills. Engine emissions light came on a few weeks ago. Local garage suggested a new exhaust and reset the ECU. Light came back on after a few days. Also got air flow filter changed. Then took car
• Peugeot 106 (1991 - 2002) - 96 1.1 Running Rich 6 Feb 2010 (Forum)
  as the engine is OK, it doesn't use oil and the oil stays relatively clean for 4000 between changes. It is however running rich as the sooty plugs will testify. Any ideas on dealing with this cheaply as I do not want to take it to a garage to have the ECU looked at or tested as it costs a mint and my car
• Citroen Saxo (1997 - 2003) - 1.4 Immobiliser problem 24 Jul 2008 (Forum)
  Problems with my Saxo 1.4 furio Basically i got in my car one morning to start the car & the immobiliser light kept flashing (coil light) when i turned the key and the engine wont start. Garages wont touch my car as they said the immobiliser problems lays within my ECU as they come standard
• Renault Megane (1996 - 1998) - 98 1.6 RT Over-revving and misfiring 18 Jul 2008 (Forum)
  ,roundabouts etc, and also when over taking (very unnerving!). It also then developed a peculiar revving pattern. Started at 500, then once the engine heated up would shoot up to 1900. If you turn the steering full lock the revs decrease instead of increase. we took out and cleaned the ecu connections
• Citroen Xsara (1997 - 2004) - 2002 2.0HDi - Dead Remote Locking 5 Apr 2008 (Forum)
  the remote facility off completely. I feel that it is a software problem somewhere. Cirtoen say that it MAY be an aerial or an ECU problem., and have quoted me around £150 for the ECU and a further £100 for fitting. It seems to me that £250 is a very high price to pay for something that may not solve
• Golf Mk3 Dead - Help!!!! 21 Nov 2005 (Forum)
  - to a faulty coil as there was no spark and replaced it. Unfortunately this didn't cure the problem so they took it to a specialist who put it on two diagnosis machines both of which showed no power coming out of the ECU. After looking at several sites it appears that there is a long running problem
• '99 Vectra 2.0 DTI blown fuse, ECU? 3 Feb 2005 (Forum)
  by hok and by crook. Haynes is next to useless regarding this, can anyone tell me what the correct rating is for these two fuses and what they control. looking at the wiring diagram the best i can work out is that they control the ECU, borne out by the fact that the Engine management light does not come
• Astra ECU questions 23 May 2003 (Forum)
  , started it up and as sweet as it usually is away I went. Any ideas on this, like why the oil had like vanished as there are no leaks and then like fuel not getting through correctly? Plus of course I realise that the settings of the ECU have probably defaulted so some suggestions there too. Thanks
• MG TF - 1.8 k series kit car , HELP! 22 Apr 2020 (Forum)
  Hello,  I need an urgent advise. My kit car broke down some time ago. I was driving from one electrician to another to fix it and now it's finally starting with a new ECU.  Unfortunately, I'm not sure if its the right one. Electrician claims it's from 1.8l but it behaves
• Peugeot 108 - ECU remap companies any recommendations 28 Oct 2018 (Forum)
  I would like to get rid of the initial "slight hesitation" when moving away from stand still. I know they all do this and I have got used to giving it...
• Vauxhall Insignia Sports Tourer - Thermostat Faulty? 23 Feb 2017 (Forum)
  I have the 1.8 petrol Insignia and have had the "Service Vehicle Soon" warning and the cooling fans constantly running. A quick Google suggested the thermostat may be the culprit. My local garage suggested a fan control ECU needed replacing but I was not sure if their diagnostic kit
• Volvo V50 - Garage Cannot fix Car 1 Sep 2015 (Forum)
  Just trying to see where I stand Put a Volvo V50 in to be remapped and now they cannot get the car to go. The garage have told me that it had been in a  front end crash and the ECU was hanging loose behind the wing, i was unaware of this at the time. When the car went
• 
  How can I verify a car's mileage? 12 Aug 2014 (Ask HJ)
  I want to buy a used Mercedes-Benz, but am worried about cars with hidden histories. Is there a way to check mileage has not been tampered with?
• Ford Focus II, 1.6Tdci, 2005 - Ford Focus overcooling 31 Dec 2013 (Forum)
  . I checked the top hose of the radiator and this stays cold for a while indicating that the thermostat is closed to start with and then opens. As far as I am aware, ECU, thermostat or AC pressure switch control operation of the fan. The local Ford dealer said that a re-program of the ECU could