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• Ford Mondeo TDDi 2.0 90ps Tuning Box 18 Sep 2004 (Forum)
  It remaps the A/F ratio, apparently saving up mpgs on normal driving as the car will become more responsive and less gear changes, hence lower RPM. Also, it will instruct the ECU to inject more fuel during hard driving, consuming more mpgs, hence overall will be balanced out. Anyone has any experience on this product? Any problems associated with it? Engine integrities due to strain on fuel pump possible?
• Peugeot 406 climate control fault 7 Apr 2004 (Forum)
  Suggestions he's had so far were to replace the control panel or plug some kind of additional "control box" (apparently specifically for the aircon) onto the ECU. 1) Does anyone know is there a proper name or part number for this "control box"? 2) Would replacing the control panel work? From what he's said, I don't think the term "control panel" means the facia on the dash, but some hidden control unit under the bonnet or behind the dash - maybe this is the same as the control unit mentioned above?
• Wet Rover won't start 30 Mar 2003 (Forum)
  I've also fitted a rubber coil cover off of a later model and cleaned all of the low tension leads from the ECU but all to no avail even after a liberal soaking of WD40. The car does several hundred miles a week, easliy passed all of its emission tests in last months MOT and when running is fautless. What else can I try?
• Peugeot 307 SW - 2005 Peugeot 307 1.6hdi Engine issues 5 Apr 2019 (Forum)
  I've had the codes read and it comes up with the following: P0405 - Electronic EGV valve position copy signal/signal volaage too low P1728 - Engine Torque Engine Torque sent on the too low P1351 -  Preheating relay circuit relay supplied and never supplied P0299 - Turbo pressure regulation Turbo pressure measured too low P0483 - Cooling function incorporated into ECU fault. Consistency between fan speed and setting. I have replaced the air filter and the rocker cover gasket so far as the air filter didn't look although it had been replaced for ages and there was a leak from the rocker cover.
• Citreon - My car will fail it's MoT if I put winter tyres on 23 Dec 2017 (Forum)
    So if your car was registered before Jan 2012 swapping winter and summer tyres will not cause an issue with an MOT Most vehicle ECUs will store data for both winter and summer tyres and specialist equipment allows clonning of TPMS valves so cheap valves can be fitted and clonned very easily. Biggest problems is garages wont invest in TPMS clonning equipment as they dont see the potential due to the fact they dont understand just what it can do.
• 2016 Peugeot 308 1.2 THP - Engine cutting out dangerously when driving 19 Apr 2017 (Forum)
  It doesn't restart for some minutes causing me great anxiety as the the traffic jams grow. No faults show up on the cars computer listings. So far Peugeot have carried out an ECU and gearbox update and next are to fit a new petrol pump. I have been without the car for 7 days which include an aborted trip to Calais and the courtesy car they tell me does not cover me in France.
• Ford fiesta style 2007 - Ford fiesta 07 style misfire\engine warning 19 Feb 2016 (Forum)
  We thought all was solved until last week the light comes back on shortly after turning on the car , so far I've spent as much on petrol as I have fixing the thing , does anyone have a vague idea of what else could be causing the misfiring problem?  Should also add we had the ECU taken out and there was an error with it but it was fixed , supposedly  
• Vauxhall Zafira A - fuel pump 25 Jul 2015 (Forum)
  Two weeks ago whilst at work it just wouldn't start, no warning lights or signs to tell me something was wrong beforehand.  after a lot of investigation it was narrowed down to a fault on the fuel pump/ ecu. My car is currently off the road being repaired.     Today I used my husbands car for work. A 2004 1.9 dci Renault megane. Started fine then all of a sudden wouldn't start,  had it looked at and again have been told it is the fuel pump.
• Renault Clio II - Recommendations for bluetooth OBD2 port reader 20 Mar 2015 (Forum)
  I've taken it to a garage a few times but they've not been able to find any fault code so either the fault isn't generating a code or other codes have pushed the fault codes out of the ECU's memory (I've left it overnight once but the temperature the following moring was too warm for the fault to show up). I was thinking if getting a cheap OBD2 port diagnostic unit, preferably bluetooth along with a bluetooth OBD2 App - There doesn't seem much point paying for a dedicated DBD2 diagnostic unit when my (Android) smartphone can perform the same function.
• YARIS TR D-4D 5 DOOR HATCHBACK 1364cc - Toyota Yaris Recall 4 Mar 2015 (Forum)
  _nkw=intercooler" target="_blank"> intercooler layout to improve air flow; upgrade ECU software; upgrade turbo charger and/or vacuum pump .
• Peugeot 106 - non starter 11 Jul 2014 (Forum)
  So after checking the car over engine cranks normally but no spark and no petrol cross wired pump and that runs ok so not the problem. So I think starter relay changed it no go so maybe a prob with imobiliser so changed out ecu and aerial coil on ignition no go have checked fuel cut off all wire connection and earths all good. I have noticed whilst standing over the engine pondering the meaning of life that the ignition relay clicks open and closed again every 3/4 minutes with no keys in the ignition?
• Ford Fiesta - Immobiliser 19 May 2013 (Forum)
  Because disconnecting the battery had some effect ,I disconnected the live battery terminal again and left it off for an hour . That did the trick ,the car now starts and drives fine .I guess the time delay allows the ecu to reset ? A nice easy fix
• Fiat Panda 1.2 56 plate - Cold starting..... 16 Apr 2013 (Forum)
  Didn't make any difference though and  I don't know if there are any other temp sensors that could be faulty. The car had a full service last October including new plugs. The ecu has been checked for error codes but there are none showing. Your thoughts please.
• Citroen C3 2006 - Engine warming lamp - Anti Pollusion Fault 31 Jan 2013 (Forum)
  This warning originally appeared last month, so I took it to the Citroen dealership garage, got charged £50 diagnosis and they 'fixed' it with an ECU software update. The fault code from diagnosis was 'P1197  Key off voltage low / Piezo-electric injector, power stage' . The warning sure enough went away but after about 4 weeks it's reappeared.
• any - MPG display 15 Aug 2012 (Forum)
  My question is where does the display get its information from. I suppose obviously it comes from the ECU but what tells this the information. wemyss    
• Citreon c3 2003 1.4 diesel - Citreon c3 2003 1.4 diesel ODb2 ??? 18 Jul 2012 (Forum)
  Hi all, I have a problem with starting on the above C3. The ECU get errors and then it very hard to start. The garage clears the faults via the ODB2 port and the car starts perfect again. I stays right for between a couple of week and 3 months then stops starting well.
• Audi A6 avant 2006 - Water in passenger footwell 18 Jun 2012 (Forum)
  Leaves blocked plenum chamber drain and water ingress caused £1300 damage to a ECU (I think!) under passenger footwell. Now no MMI functions working at all. I've never been notified of a known problem by Lancaster Audi, where I bought the car from new. Last service was September 2009 and not yet due for next service.
• FIAT Punto - Power Steering Failure 9 Mar 2012 (Forum)
  My power steering recently failed right on top of the mot. The garage informed me that the steering column might need replacement, or the electric motor and ECU. That cost would be at least £250 for a refurbished electric motor.   The reality is that the steering motor has two relays that frequently fail.
• Peugeot 307 - Peugeot 307 HDi struggling to start 23 Oct 2011 (Forum)
  Or what else could it be? The car has just had a new MAF so that is fine and there are no faults recorded on the ECU. 2003, 68K HDi 2.0 110 Thanks
• Many - Cost of spares 22 Aug 2011 (Forum)
  Just had problems with  tyre presuure sensors. Cost £70 each plus £70 fitting each. ECU needs reprogramming afterwards to recognise new ones. Then problem with parking sensor. Cost £70 each plus, you've guessed it, £70 fitting. Car now 4.5yrs old so no warranty.