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• VW 1.9 Tdi occasional misfire 25 Aug 2004 (Forum)
  Other than this the engine starts and runs perfectly. My thoughts are that it could be: -contaminated fuel -poor fuel flow (gunged fuel filter) -faulty injector pump -faulty engine management -or (less likely) - problem with airflow into engine. Any advice. Cheers, Sofa Spud
• Fuel Consumption 10 Mar 2004 (Forum)
  Having seen these giant beasts before I decided to go for it. http://www.lincoln.com/vehicles/interior.asp?sVehi=nav This car is huge, very comfy, loads of gadgets, unbelievable THX sound system but the fuel economy shocked me. It has a 5.5ltr V8 that sounds glorious but the best I managed was 14mpg on a 150 mile stretch of road and 5-8mpg around town. I have never worried about pollution/resources as such before but this started worrying me and when you consider the amount of cars in the U.S. with great big engines you begin to worry.
• Emissions, and stuff 1 Jul 2003 (Forum)
  The emissions were OTT. The advice was "change the air filter, put some Miller's Dieselclean Plus in the fuel, change the fuel filter and run it for 600 miles. No, I need an MoT certificate today, mate. Right then, off to the M62. We're talking 5000rpm in 2nd gear and 75mph. Goodness me!. The old girl fairly picks up her skirts and goes.
• 306 DTurbo starting 16 Dec 2002 (Forum)
  Once started, it runs fine, plenty of power and it is not using any coolant or oil (Headgasket was done 6K ago). I thought it could be air getting into the fuel system somewhere, so I pumped the priming bulb several times. There is a slight weep from the top of the fuel filter housing, obviously if fuel gets out here air will get in. SO, my question is....
• Escort Diesel 1.8TD (L) Fuel Pump 6 Dec 2002 (Forum)
  Hi Folks Never had any problem until new Bosch fuel pump recently fitted (slanted wiith rubber primer on top), but big problems starting.My mechanic had to reseat the seals and change plastic pipes to pump since they were taking in air to injectors.
• mondeo diesel 2.0DI (115bhp) 23 Feb 2002 (Forum)
  Has anyone else bought a new Ford Mondeo diesel 2.0DI (115bhp duratorq engine) and been disappointed with the fuel return when compared with the fuel returns quoted in various magazines and websites? I've done about 4,000 miles in mine from new and and getting a return of 35.5mpg all the time whether I am driving in towns or on motorways.
• Official fuel consumption measurement 27 Jun 2001 (Forum)
  Does anybody know precisely how the official fuel consumption figures are measured? I have seen references to official measurements taken on a rolling road, but this would not take into account variations in wind resistance between different vehicles.
• BMW 3 Series Coupe - The AA Warranty sold by The Cargiant 27 Jun 2013 (Forum)
  Although I didn't intend to buy a warranty with it, the sales guy persuaded me vigorously by showing a leaflet saying things such as, this a very transparent high quality warranty governed by the Cargiant safeguarding and it is only administered by the AA and if the car develop any fault, such as engine or transmission or fuel system etc. they will deal with it directly and so on... Now after about six months the car has developed some fault to do with the fuel system and they refuse to pay. The BMW specialist diagnosed the problem and need to change the the fuel injectors, injector coils and also spark plugs.
• Nissan Micra 2000 1.4 SE+ - Long Term Fuel Trim 18 Apr 2011 (Forum)
  After the problem did not improve, I had another garage take a look at the car and it was discovered that the previous garage had fitted a universal 4-wire back oxygen sensor to the front! The fuel trim at this point was hanging between +20-23%. Having had the front changed for a legitmate Bosch sensor (part number: 0258005263) and the wiring harness reconnected where it had been cut by the last garage the car seemed to be running a lot better and the fuel trim started reducing (they said it should freefall after a few hundred miles back down towards 0%) and wouldn't need anything else doing to it.
• BMW 3-Series E46 (1998 - 2005) - 2003 2.0d Power Loss - Not usual suspect 31 Jan 2010 (Forum)
  Turbo & CAT replaced at 110 k miles - turbo worked perfectly after replacement - independant garage did the work. 2. Fuel pumps & filter (tank & intermediate pumps) replaced at 125 k miles - independant garage did the work. 3. All 4 injectors & fuel pump relay replaced at 125 k miles - main fuel pump checked and passed as ok - main BMW dealer did the work (4 new injectors & relay switch). 4.
• Ford Mondeo III (2000 - 2007) - TDDi 2002 - Fuel Pump problem ? 7 Nov 2007 (Forum)
  Anyone out there with a view - or more experience with stuff like this....? I have to say the car has been great until now, but if I had known that to fix a fuel pump would cost £1400 - I would NEVER have bought it - guess there's a whole bunch of new questions to ask in future :-))
• Pug 306 HDi Fuel Problems - HELP! 21 Jun 2006 (Forum)
  It was taken to a Peugeot main dealer who diagnosed failed injectors 1 & 3. As a result all 4 were changed as per Pug procedures. The car still would not fuel or run correctly. The fuel pump was changed, as Peugeot said there could be swarf in the fuel system. No Change. I've got the following info from the dignostics machine to see if anyone can help: Diesel Pressure 290 Bar Injector Quantity 14.1 mm3/l Main Injector 1.7 Idle - 6.2 Flat Injector 4 -2.5 Injector 3 +1.9 Injector 2 -5.0 Injector 1 +5.3 The ECU is coming up with the following fault codes: 1404 - PreHeating or PostHeating Control 0201 - Cylinder No 1 injector or circuit - Open circuit or short to Ground/Battery The car is still not running.
• Ford Focus III 2.0tdci ghia - intermittent loss of power 16 Nov 2013 (Forum)
  My major concern is that someone may drive into me when this fault occurs as nearly happened on the M8. it has been back to the local ford dealership, (evans halshaw, edinburgh) where they kept the car for a few days, was taken on an extensive road test, everything was "ok",diagnostic testing showed no fault codes. one of the senior techs questioned the type of fuel used,a fuel sample was taken and was given the all clear,the fuel filter was replaced,engine recoded all at a cost to me,the problem still remains. they have suggested that i shouldnt use cheap forecourt fuel, ie tescos etc, i have since switched to Shell. the problem is still there. the car has been back in since then and now they say the fuel is contaminated, which i take exception to, as i have never filled my car with anything other than diesel. i have asked how this may have happened. they have suggested 2 ways. either the car has run dry, picking up the debris from the bottom of the tank, this has never happened or when i have refueled my car the pump that i have used may have been running low and the gunk from the bottom of that may have entered my tank. both of these i think are far fetched. each time a diagnostic test has been run i am charged as no fault is found. even before they claimed my fuel was contaminated there was a fault, it has undergone the same diagnostic testing each time, so how they have decided this all of a sudden is beyond me.
• Peugeot 206 - Peugeot 2.0 HDI Naughtyness 21 Jan 2011 (Forum)
  Hi, Sorry for the rather strange topic title, anyway on Monday I was driving back from work and on my way to my local Tesco station to fill up with Diesel and the fiel guage was reading about a few millimiters above the area where it would normally beep and display fuel low(or something to that effect) I have never intentionally driven my 206 in the reserve for fear of both running out of fuel and also sucking up a load of crap from the fuel tank. Driving along nicely and then the engine management light came on along with a beep and anti pollution fault(which is something that has popped up ever now and then-my 206 does not have a FAP filter system) so I tried to start it and it wouldn't...I had to call the AA in the end which had to tow me back to my house(less than 2 miles away) but before doing so he tried various things like asking the obvious if there was sufficient fuel in the tank etc etc(which there was according the the guage) and upon connecting it to his computer it came back a fault relating to the error code P1112 fuel rail pressure.
• Any EV - You think your fuel economy doesn't match claims? 19 Feb 2017 (Forum)
  I was browsing the road test of the new Tesla Model X in Autocar magazine, and happened to notice the disparity between Tesla's claimed range, and the...
• vauxhall corsa 1.7 Cdti ecoflex sri vs 1.3 version - Best for fuel efficiency diesel corsa 2 Sep 2014 (Forum)
   I am looking to buy a new or fairly new corsa. Changing from a 1.2 petrol 2008 design to diesel.  I drive mainly motorway and also some...
• Audi a4 electrical issue 12 Jan 2013 (Forum)
  i trried running 12volts straight to the pump but it did nothing, i had expected it to pump some fuel, is the pump also dead? cheers chris
• Nissan Primera III - Sudden power loss 16 Dec 2011 (Forum)
  Hi all, I just wanted to report a fix for the sudden loss of power problem, you know the thing, your driving along and suddenly the car losses power it still works but it's almost as if the car has gone into a "limp home" mode, switching the engine on and off "solves" the problem, for a time anyway, Nissan wanted £1,200! for a new fuel pump, but  the culprit  (in my case) is a fuel flow regulator valve, fixed by my mechanic for £50.
• Skoda Octavia - black smoke and high consumption 9 Nov 2011 (Forum)
  hi , can any one help me plz i have1998 skoda octavia 1.6 aee engine code it has 170000 km in good condition but it has one problem it has a black smoke from the tail pipe and a  high fuel consumption  i changed the engine control unit , spark plugs ,timing belt , water temp sensor , fuel and air filters but still have the same problem i dont know what to do
• Carburated petrol engines - Cold starting additive/petrol octane 29 Nov 2010 (Forum)
  Hello all, Couple of quick questions!  - Is there a fuel additive that will help engines start in colder weather?  'Dry fuel' doesn't make much difference. I remember reading about acetone on here a long time ago, reckon that would be any use?