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• Golf MK4 engine knocking/whirring noise 10 Jan 2006 (Forum)
  Hi I have just had the ecu replaced on my 99 golf along with CAT and O2 sensors. (engine emission problem). Since getting the car back i have noticed a knocking noise including some pedal movement when driving slowly in 1st or 2nd gear. The accelerator pedal seems to jump slightly when starting
• 306 1.4 petrol won't start when warm 19 Aug 2005 (Forum)
  is immobiliser, but would the ECU continue to pump fuel into the engine? Second thought therefore is a sticky ignition relay, but why would this be temperature related? Third thought is cold-start-valve/regulator-thingy, but why would it suddenly work when ignition turned back off and on? I'm puzzled. Thanks
• Sluggish Acceleration With Fiesta 14 Aug 2005 (Forum)
  I have a Fiesta Encore 1.30 P reg. The car has quite suddenly developed a problem which causes sluggish acceleration both from a standing start and when moving up through the gear box. I know it could be a whole host of things from simply needing a new set of plugs to a faulty ECU and anything
• Vauxhall Corsa 96 1.4i engine fault lamp 30 Mar 2005 (Forum)
  deceleration and cruising around 2k/rpm. New spark plugs, oil change, injector cleaner, the car improves, until this evening and the fault code 28 returns. Does anyone have any idea of what to look at next? Also, how does the ECU know if there is a problem with the contacts in the relay? Thanks... Damien.
• Volvo 940 '!' warning light , £4.95 chip 22 Mar 2005 (Forum)
  to join {pay!!!!!!} to get any help. Also seen a 'chip' for £4.95 that claims to boost power by 20BHP - a piggy back device ''externally alters one or more signals sent to the Volvo 940 ECU'' Can it be any good for a fiver ?????????? Many thanks Paul Paul {Forest of Bowland}
• Vauxhall Carlton starting problem HELP!! 17 Aug 2004 (Forum)
  read is indeed a crank sensor failure. I believe this code can be set by other issues that force the ECU to indict the Crank but I do not know which ones. Does anyone in the BR have any advice on what we can try next to solve the problem, (other that scrap the car, which is a serious option if we
• Electromagnetic Battery Discharge 9 Mar 2004 (Forum)
  batteries had prompted an investigation by BAA which found that the problem was caused by the high levels of EM radiation in certain areas around the airport. Alarms and immobilisers are also affected. I can understand how poorly designed alarms/immobilisers/ECUs etc. are affected by EMI, but batteries
• golf gti wont start after new starter! 5 Nov 2003 (Forum)
  + and- at the coil.it has an after market immobiliser fitted which appears to be clicking off red light goes out ect.seems like the ecu has gone pop to me.are we missing something glaringly simple?he doesnt think he shorted anything out.any ideas?cheers bunny
• How do u increase Bhp on a 11 Oct 2002 (Forum)
  anyways, i wanna know more about chippin the "ECU. n what kinda difference would it make? where could i get it done? etc etc -wot else would increase my bhp? brainstorm people... ur the experts, not me. thaaaank u *later*
• Engine chirrup 27 Sep 2002 (Forum)
  or momentary hesitation before carrying on as if nothing has happened. If l turn the boost down the problem seems less prevalent. I initially thought this could be the engine ECU boost pressure limiter kicking in, but l am also wondering if the fuel pump is unable to meet a sudden increase in fuel demand
• K reg escort 1.4 CVH 10 Sep 2002 (Forum)
  Hello A friend of mine has a 1.4 CVH single point injection escort. He has the problem that his car is very reluctant to idle. To date the following have been replaced: stepper motor (with a scrap yard item) map sensor temp sensor. Recent tests on a ford ecu computer showed no faults (s**s law
• 1990 Rover 214SLI starting problem 14 Aug 2002 (Forum)
  it needed a new ECU. They could find no fault at all. Apparently, they have seen the identical fault on two other similar cars since the torrential rain last week. Just to let you know that it is pretty benign - just leave the car to dry out completely in a dry warm garage, and all should be well!
• jetta ignition problem 3 Nov 2001 (Forum)
  in the ignition. The Crypton tester shows an intermittent (every 10 to 40 seconds) loss of spark, the Crypton signal "breaking down in the middle of the scale as if turning up a resistor in the ignition circuit". He has borrowed the following components from other vehicles: coil, ECU, amplifier, leads and has
• rangerover c/locking and idling 28 Sep 2001 (Forum)
  the thing is, the central locking has just packed in althought the doors still lock individually. Can I continue to live with this, or is it a sign of worse to come? I seem to remember that there is a separate ecu for central locking??? and, in damp weather (this could be a coincidence) when
• Short Journeys 16 Feb 2001 (Forum)
  Further to your recent comments about car use in the Daily Telegraph, that modern cars with ECUs should not be used on short trips: Short journeys are a fact of life in today's motoring. It is not up to the Motorist to change his lifestyle; rather it is for the car manufacturers to design
• Skoda Fabia VRs - Failed ECU 4 years old - Sorry for the long post! 18 Jun 2010 (Forum)
  for over 180 days since August 2009 and is still not fixed. I am also faced with a bill for new ECU which is not guaranteed to cure the problem. Skoda have offered to pay 50% but I still need to pay over £525+vat for something which I feel should not fail after 4 years. Below is a list of the events
• Vauxhall Corsa - Lack of Power/Gutless 12 Nov 2012 (Forum)
  block of EGR to try to improve performance, car is running better, advise customer to try and return if not happy. 11. The Technician suggested it could be the ECU, the fuel pump or maybe the injectors. I found a guy on eBay that re-programmes second hand ECU’s
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  Is it possible to modify a Euro5 engine to comply with Euro6? 6 Oct 2023 (Ask HJ)
  Is it possible to modify a Euro5 engine to comply with Euro6? If so can the compliance be registered so the vehicle can go to clean air zones without penalty
• Peugeot 307 (2001 - 2007) - 05 1.6 Loss of power 10 May 2021 (Forum)
  whether the fault was showing or not. Eventually I got it checked, the fault code was cleared off the ecu and the fault didn't return for several months, when eventually it returned, the car was running as well as it always has, and the fault would show itself once every few weeks and then disappear again
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  I took my car to a hand car wash - and now the electric windows don't work? 25 Jul 2017 (Ask HJ)
  I have a strange query. It was incredibly hot yesterday and I used the air conditioning on faster roads and opened the windows in 30mph zones. I thought...