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Just in case anyone else has this issue, I changed the injector loom and the problem seems to have been fixed. I had a quick look on youtube at a video of a guy changing the part first which was useful. Also, when I took the old part out, I tested for continuity and resistance between the main plug and the injector plugs. It all checked out ok, continuity between all appropriate connections and resistance of 3-4 ohms everywhere too. I'm assuming it must have been a problem that was made worse when the engine got warm; it always took 5 minutes before the problem would start happening from a cold start.

Thanks. I've not managed to get under the bonnet yet though. I'm staying optimistic and hoping it's a bit or wiring or a bad connection that is easily fixed etc. Does the loom run inside the rocker cover? Will it need a new seal of I take it off to check out the connections etc?

Ok, only fault code I got was: 18076 - PD Unit Injector'; Cylinder 3 (N242): Electrical Malfunction P1668 - 35- 10 - - - Intermittent Has anyone had this before?

I'm going to try and read the codes this evening. I'll post up the result.

Forgot to add, I don't have an engine management lamp on the dash.

Car: 2001 fabia 1.9tdi. I'm having an issue, I believe with my fuel delivery. I was wondering if anyone had experienced this before and knew what it is a result of? Normal low load, low throttle driving is generally fine. Sometimes, not every engine start, the car will begin to have very lurchy/inconsistent power delivery at around 2300-3000rpm, after a varying amount of time. It gives a very juddery feel from behind the wheel. This does not happen straight from engine start every time, but does sometimes. Sometimes, the engine runs very poorly straight from start. In both circumstances it usually goes away when I cycle the ignition, but sometimes needs a few ignition cycles. There is no 'noise' associated with the problem really, which makes me think it's not a boost related issue. But I've not ruled it out. I have changed the MAF and tried it unplugged and this has not changed the situation. I have changed the fuel filter. The fact that the problem is very irregular makes me think it's not an injector being dirty, I believe this would make for a continual fault. I've read a few posts on here, one of which seemed like it may be related, the fuel pressure regulator, (post #22): http://www.briskoda.net/forums/topic/195615-need-help-with-the-skoda-octavia-19-tdi/#entry2329573 But this is to do with the low pressure regulator whereas I am getting trouble with what would appear to be the higher pressures. Any help/advice would be much appreciated.

Hi, Does anybody know the part number for the inner cv joint bolt? I've got a rounded one and need to replace it. Any recommendations on where to get one as well? Cheers

Does anybody know how much work it would be to put Audi A8 front seats in a Fabia?

Hi, I've had a good search but can't find a definitive answer on whether Inner cv joints from fabia 1's are the same throughout the range. Basically I was wondering if an inner cv joint off a 1.4 model etc would fit the 1.9tdi. I'm assuming it would but I'd just like to know if anybody knows for sure?

Great help, and very good instructions too. Thanks!

Just wondering if anybody has dissassembled their clocks as far as the pcb and further.... I need access to the pcb but from memory the actual clock face (kind of a plastic sheet) is stuck behind the needles of the dials. This will make it very difficult. Has anybody had need to take this off before? Any tips? Cheers

Ok, just to update, as this may be a useful bit of info for many people at this time of year. The main problem turned out to be.... a flat battery. The reason for this must have been the car laying idle for a few weeks in the cold weather. However, the reason I eventually thought the alternator was at fault (after getting a multimeter and testing etc), was because it wasn't giving out any voltage at idle, and even after a little drive. Basically, I found out, unless the car is revved past 3k the alternator will not get 'excited' and not provide charging voltage to the battery. Once it has been revved past 3k once it will continue to provide charging voltage for the rest of the journey, until you turn the ignition off. My problem was, that I was leaving the car sit at idle, with an already weak battery, and because it was only idling and hadn't excited the alternator there was no charging voltage being sent to the battery. Therefore, the battery was being drained. I can understand the argument for this feature being that it will make the vehicle more fuel efficient by not putting load on the alternator all the time. However, I'm not too sure if it's the brightest idea man's ever seen! Every winter, when everyone is clearing the ice off their windscreens, they leave the car idling with the blowers and radio on to clear the screen inside! Surely this is going to lead to a lot of dead batteries!

Going back to the comments about the lights/heater etc using more fuel. I'm not sure if this is common knowledge or not, but these things may not actually be effecting fuel economy (right foot dependent). I found out yesterday that until you rev my fabia past 3k, the alternator will not be 'excited' and not put out any voltage to the battery. Then once you do 'excite' it, it will continue to provide charging voltage to the battery until you knock the car off. Therefore, if your relatively gentle on the loud pedal you could actually go the whole journey without having the alternator kick in, and without it being a drain on the engine/fuel! Of course, it still spins with the belt, but with no load on it there is less friction in it's internals, and therefore on the engine. Now, I'm unsure if this is the case with every fabia, so don't quote me on it, but the chances are fair that it could be common to them all. I also agree that if the manufacturer advises a specific ron fuel there will be no advantage to using a higher one. Unless the engine has variable maps/timing etc to cater for the differences it would bring.

A quick word of warning though, if you do put something like the fabia vrs alloys on your fuel economy will decrease.... the wheels are a lot heavier than the normal steel ones and obviously have wider tyres too. My mpg's have gone down about 10 average. Not good.

I agree, this seems logical. Ordinarily I would just assume that it was the battery and not consider the alternator until necessay. But when I bought the car a month or so ago, the seller said he had just put a new battery on the car. Didn't click with me at the time but this may have been to just get me home so I didn't go back to him after I realised the alternator was dead.... Just a theory.