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• Peugeot 308 - Peugeot 308, 2010 Petrol 1.6l Noisy fan 24 Sep 2018 (Forum)
  may be a corrupt ECU or fuse board or something. bit of background.Initially after the car was bought few months ago it was working fine with no fan issue. But AC was not working so took it back to the dealer. Dealer had said the compressor was gone so he replaced the compressor
• Citroen C3 (2002 - 2009) - 02 1.4HDi 16v engine cutting out at random 7 Jun 2018 (Forum)
  !!! No fault code stored. Yesterday, I had the same brief cut in power which lasted a second or so but then the oil pressure warning light came on and the car drove as normal. A quick pull over to the side of the road to turn ignition on and off and all is well again. No ECU lights are lit on the dash
• Vauxhall Corsa - 50mph crash, write off, old car :( 2 Oct 2017 (Forum)
  before only a £7,000 per year pay drop from the one I missed out on. Devestated. Anyway, my car was a 53 plate corsa. Only had it two years. In that time the ECU had to be replaced, head gasket, timing chain and water pump. Got it for £2,000 ended up putting over 2k into it in repairs. Yes, I know
• Landrover Freelander - Consumer Rights Act 2015 10 Feb 2017 (Forum)
  it revovered to him and he told me I could take it to any garge, so I had it recovered to a Jaguar / Landrover specialist that I have used previously. After much diagnostic work and repairs including a new fuel pump, new ECU and fuel injectors, all costing me over £3,400 the car was back on the road
• Nissan Note - Help needed - intermittent vehicle fault 26 Nov 2015 (Forum)
  and stated that the fault didn't occur. He also confirmed that the ECU held no fault codes. I reported this to Nissan and they stated that I would be charged £100 for a diagnostic if it wasn't covered by warranty
• Vauxhall Astra G Petrol 2002 1.6i - engine management light 13 May 2014 (Forum)
  said changel the  cam and crankshaft sensors ,egr valve and the thermostat .... so i did had the ecu reset and ....... still the same took it off the rd in october finally as i could now not afford to tax and insure it as i lost my job for always being late , i couldn't afford to get another car
• Ford Focus (1998 - 2004) - 1999 1.8 overheating problem? 1 Jan 2014 (Forum)
  this be the Cylinder Head Temp (CHT) sensor telling the ECU to take precautions ? Strangely - if you ease off, it'll often return to the 12 o'clock position really quickly too - takes less than 30 seconds sometimes !? Both the coolant and oil levels are fine and there are no obvious leaks around any of the visible
• Volvo V60 - Fault tracing and misleading diagnostic codes 11 Nov 2013 (Forum)
  Here's a little tale of how diagnostic codes stored in ECUs can be misleading and ambiguous when trying to trace the true cause of a fault. Just under 3 weeks ago, I had the 'emissions warning' lamp light up in my 2011
• Vauxhall Corsa - Garage shears off glowplug: who's responsible? 8 Sep 2012 (Forum)
  a diagnosis.  The fault code they reported was something along the lines of the ECU wasn't getting a signal / talking to a glowplug.  Their course of action was to replace the glowplugs. Within half an hour, they'd rung to say that although 3 of them had come out fine, one hadn't but had
• Renault Clio II Expression - Renault Clio 2001 1.2 16v - Electrical Fault Light 8 Jun 2012 (Forum)
  the problem temporarily.  My husband has changed the air filter, spark plugs and checked ECU wires for chaffing.  They were already taped up but he removed the tape and inspected them, there didn't seem to be any damage to the wires themselves, just the plastic was slightly worn on one or two
• Ford Fiesta (2002 - 2008) - 2002 1.4TDCI ? injectors or pump 26 May 2012 (Forum)
  on accelarator and it kept stalling never done that before.We have been told lots of waffle over the last few months.It has supposed to have had the exhaust cut in half to test the pressure,ecu checked and fuel pump flow.Two of the injectors have been taken out again and the spray was ok.Someone told us
• ford fiesta 1.25 zetec T reg - over revs but not stalling or power loss 2 Apr 2012 (Forum)
  . But if im driving along as normal and gear change from 3 to 4 etc, revs DROP for a split second.  Ive tried an ECU reset about five times now and still the same (i cant find appropriate fuse so just been disconnecting the battery)  so i disconnected the VSS (triangle plug thing that sits
• VW Passat 1997 TDi 110bhp - VW TDi revs on hot start and no power 11 Mar 2011 (Forum)
  ) faults cleared in ecu. He thought it made an improvement and to be fair it did but it's still way down on power and still revs on starting when hot. Any suggestions welcome, I will try and pressurised the fuel system tomorrow as per another thread to see if there is an air leak using the rag in tank
• SEAT Altea (2004 - ) - 55000 mile report 22 Oct 2009 (Forum)
  to be the downfall of this car, we chose to sell in the end as the time between each failure never really exceeded a few months, here are some highlights: Electronic throttle failure from delivery, caused ECU to disconnect throttle control which was exciting on the motorway ? this required 13 dealer visits over 6
• Nissan Primera III (1999 - 2002) - 01 2.0 Fuel economy has nose dived - ideas? 18 Jan 2009 (Forum)
  the information above, and better still how to test components? I think I can put the ECU into diagnostics mode to see if the lambda sensor is cycling through open/closed loop often enough but that's about it. Any ideas most welcome, thank you.
• Peugeot 806 MPV (1995 - 2003) - 01 2.0 Expert HDi 110 black smoke and poor economy 2 Nov 2008 (Forum)
  with the fuel that the ECU thinks it needs - end result is over-fueling and black smoke. I have disconnected the exhaust where the cat connects to the centre silencer and the cat seems to be clear. The engine runs a little better and the turbo seems to come in a bit quicker, but it's not a massive difference
• Peugeot 406 (1999 - 2004) - 02 2.0 HDi low power after hitting flood. 23 May 2008 (Forum)
  have caused a permanent change in the way the the common rail fire each injector? Its obviously delivering fuel, more than before, yet I have really low power in the lower revs. Overtaking is now a memory!! Tried the disconnect battery thing to reset ECU, all this got me was an "ENGINE IMMOBILISER
• 03 Laguna repair - opinions needed 13 Jun 2007 (Forum)
  responsible for a fatality if we'd been unlucky. The service guy said (direct quote) that the AA were 'drama queens', and that there's a backup in the ECU that ensures that the car goes into limp mode if the sensor fails, and won't simply cut out. So, who's right? Let me add that the garage did not apologise
• Ford Zetec 1.8 high idle 1 Sep 2004 (Forum)
  , the emission control valve and the HEGO unit. It may be very slightly better but not much. Anyone got any Ideas what the problem really is? What should I get done next? What of the engine management system is left to replace? Mass flow detector? Engine temperature detector? Throttle position detector? ECU? I
• Ford focus econotec diesel 2008 - Car chooses when to start - Help!! 21 Aug 2021 (Forum)
  diagnostic equipment on it and said there's fault with the battery and that is why it sometimes won't start. We told our mechanic and he said he checked the battery and it was fine. He now thinks the car issue could be with the instrument clusters - ECU's/PCM's (engine control module/power control