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• Vectra 2.0 DTI 16V Low Power 18 Mar 2014 (Forum)
  The car has just passed the mot and when smoke tested it was well under the pass limit which makes me think the fuel pump is not delivering full fuel, is there any way to test these fly by wire pumps without selling my house and using a vauxhall dealer as it seems with these engines they have no idea what is wrong when the ecu light is not on.If anyone can shed some light on the problem please let me know as apart from low power the car is great. Steve.
• 2003 Ford Focus auto 1.6 - Disconnecting the battery 27 Dec 2013 (Forum)
  It was suggested that I disconnect the battery when storing it, I just looked in the Haynes manual to see which terminal I should disconnect first and read that if I disconnect the battery the ECU will lose the information stored in it's memory (KAM), this includes idling and operating values  and any fault codes detected, it goes on.......... Also the Ford keycode audio unit will not function again on reconnection until the security code is entered (I bought the car from auction 7 years ago and was never given the code.)
• Ford Fiesta - Fiesta Idling too high 21 Mar 2013 (Forum)
  I checked the error codes and I got this list P0460: Fuel Level Sensor Circuit P0171: System too Lean (Bank 1) P0704: Clutch Switch In put Circuit Malfunction I had previously cleared the ECU after cleaning the connectors and the only other one I had before this other than p2119 was p0704. The car is currently idling at about 1300 RPM but it is also unstable moving between 1200 and 1400RPM slowly   Anyone have any ideas?
• Vauxhall Astra G Petrol 2002 1.4 LS 16V Z14XE - Misfire Cylinder 3 16 Jan 2013 (Forum)
  This isn't the first time this has happened (about the 6th or 7th) I've had the plugs changed twice, new coil pack, new ecu, new egr, and a software update but the problem still seems to be there. I've just bought a new Lambda sensor which I'm hoping to get fitted soon, I'm also going to ask if them to switch the injectors round to see if the problem jumps cylinder (to determine if the injector is at fault) or if it stays on the same cylinder.
• Peugeot 206 - Intermittent starting problem 12 Jan 2013 (Forum)
  The same problem occurred again, and the garage cannot seem to replicate the problem, telling us that "the car starts every time". We know that it does from cold, but not when warm. The second suggestion was that we have the ECU replaced, an option that we does not appeal owing to it's cost and the fact that there is no guarantee that this would solve the problem either. The car is spending the weekend at the garage, where, on Monday morning there will, no doubt be more scratching of heads!
• Ford Mondeo - DPF and oil warning 2.0 tdci 24 Sep 2011 (Forum)
  I'd be grateful if anyone could shed any light on this, as at the moment I am not sure whether to wait to get it serviced in a couple of months time, or whether it needs an immediate oil and filter change and an ecu update.
• Vauxhall Corsa D 1.3 CDTI 90PS 2007 - Erratic revving 4 Jun 2011 (Forum)
      Problem occurs when air con is both on and off. Could it be a sticking throttle response or something else, there are no ECU lights so would assume that it is not electrical.  It is also smoking a little more than usual.  I have given it a blast down the motorway to see if the problem would clear. Any ideas?
• Renault Megane Coupe-Cabriolet 2005 1.6 petrol - intermittent camshaft knocking 15 Apr 2011 (Forum)
  ive had the oil and filter changed.used a fuel additive to remove any carbon deposit on the valves and had the camshaft sensor changed.the ecu light stays off after resetting until the engine is cold .When i start it from cold the camshaft ? knocks briefly and the engine management light comes back on .my mechanic says its unlikely the camshaft is worn because of the low mileage and because the engine/camshaft doesnt knock when the engine is warm.
• Renault Scenic 1.9 - electronic fault warning light 8 Mar 2011 (Forum)
  I then went to the garage and paid £40, they printed out the following; Connect to sun scanner and read ecu memory for faults, intermittent fault stored with egr valve flow p 1826, cleared fault from system and reset, no fault present on road test, customer to monitor, if fault returns a new egr valve will be required.
• Ford Mondeo mk3 2ltr zeetec 51 pate - Speedo drops to zero and starts to missfire 13 Feb 2011 (Forum)
   Hi anyone had a similar experience, it would appear to get worse when the electrical load on the car is increased. Have cleaned all the earth points and had the ecu cleared and rebooted with the latest software updates but still the problem exists. This firstly started when i changed a dipped head light bulb which when they were turned on stopped the engine.Cleaning the earths seems to have got rid of that problem but now i am left with this intermittent fault.
• Mazda 3 ts2 2.0d 2008 - Sump oil rising fast 14 Dec 2010 (Forum)
  Last month it was towed into a Mazda main dealer with the sump oil level very high, loss of power, uneven idle, and run-on after switch off (no dash warnings).  The dealer reconfigured the injectors, made a service update to the ECU for the DPF warning setting. Mazda refused the warranty claim saying this is a serviceable issue. I  note from the injector readings that one injector is way different to the other 3.
• Hyundai i20 - Hyundai i 20 10 Nov 2010 (Forum)
  However, I did own a Getz and when under warranty was almost faultless and even if the fuel consumption was a bit heavy for a 1.3 ( 37 mpg average) the car was excellent value for money and reasonable to drive. Yet when the warranty went, a month later the ECU decided to die, leaving me stranded and with a £ 600 bill. This had obviously narked me big time, and I vowed never to buy Hyundai again, but the way the i20 is reviewed is making me think again.
• Ford Focus - Cooling fan problems 30 Jul 2010 (Forum)
  Unfortunately it still happens. They say it's a fault however can't find it. Its due to go back in for a new ECU. I have asked for a replacement vehicle as I feel this fault has gone on long enough. This was rejected by the dealer. After speaking to the finance company involved with my car they advised me to reject the car.
• VW Polo 03 1.2s - Engine warning light on for trivial problem 27 May 2010 (Forum)
  Interestingly they couldn't see a fault-code for the failed light, only some other minor transient faults, but anyway......this blown bulb cost me over £27 in the end. How can it be right that the ECU retains the warning for a blown bulb permanently and doesn't clear it when I replace the bulb? Obviously I had to get the fault cleared as there's just the one warning light on this car, for everything from trivia to impending disaster.
• Peugeot 406 Hdi 110 2001 (Y) RHZ - Cutting out and Lack of power 13 Apr 2010 (Forum)
  I also have a 90 bhp Hdi of the same year, so I.................... 1 Swapped the low pressure Bosh pump in the tank, 2 Swapped the relay next to the ECU under the bonnet, 3 Done a like for like swap of the vacuum solenoids on the bulk head. SO TO SUMARISE, My 90 BHP now has all of the above parts fitted to it off of the 110 BHP, it goes fine!! The 110hdi will tick over for hours, but when driven will cut out in about 300yds, the engine light is still on and it will not rev over 2800 rpm.Untill this happened, the car was running fine.
• Ford Focus (1998 - 2004) - 99 1.6 cooling fan too keen 29 Jan 2010 (Forum)
  New thermostat and cooling system flush to no avail, despite careful refill and bleed to avoid airlocks as before. Have disconnected battery for a few hours in attempt to let ECU self-reset but no change. If I arrive home with fan frantically whizzing away and switch off for a few seconds, then restart, fan is off. Very baffling.
• Peugeot 205 (1983 - 1997) - 91 1.6 Fuse Box/Fuel Pump Intermittent power failu 8 Dec 2009 (Forum)
  I know 100% that it is a problem with the cables(loom) that connect to the fuse box,, the problems is every now and again the fuel pump will cut out, i have had the car specialists in to look at it, since being told to replace the fuse box, fuel pump relay and ecu, the problem still persists, when the engine cuts out i proceed to 'wiggle' the fuse box itself whilst coasting down the road, and the majority of the time, this caues the fuel pump to start working, this fault must be caused by a loose or faulty connector on the loom, ofcourse i have no idea which connecter that connects with the fuse box does what!
• Peugeot 306 (1993 - 2001) - 2001 HDi intermittent lack of power 10 Oct 2009 (Forum)
  I have just tried linking out the switch with a piece of wire which i thought would give me a fully performing car again, but this has not worked. Is the ECU clever, and expects the switch to break and make every time a gear change is done ? (i.e. when the throttle is released) Which would explain why i cant fool it... I noticed that some sort of lubrication has leaked on to the switch again like last time which could be making it fail?
• Mazda 323 (1998 - 2003) - 01 1.6 Intermittent flashing engine check lamp 7 Aug 2009 (Forum)
  By the time he's arrived at the dealer the light has stopped flashing and has gone off. Now, I was of the understanding that the ECU stored the fault code, but perhaps I wrong! Has anyone had experience of this problem? Whilst I owned the car I had the engine check lamp come on and it was a defective knock sensor to blame (known 323 problem).
• Vauxhall Corsa B (1993 - 2000) - 95 1.2 Engine wont start after engine swap 27 Jun 2009 (Forum)
  hi all i am in need of desperate help, i have two corsas one 94 year one 95 year i have put the 94 engine in the 95 one as the engine was blown in it now the engine wont start, the 95 one has an immobiliser so i have disconnected it and are using the ecu from the 94 one still wont start, i have 12v coming to the king lead on ignition but when i crank the engine the volts drop there is no spark at the plugs but the fuel is getting through i have taken the crank sensor plug off and there is 12v coming out i tried the wire in the centre of the plug to earth as explained in an archive of this forum and the king lead sparks i have tried towing the car off but nothing any ideas would be appreciated, cant afford to take it to garage as on the old dole and parents need it off their drive thanks in advance