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Discussion Starter · #1 ·
Has anyone heard of, or had problems with the engine management on their 2.0 diesel? My SW suffers from a diesel knock (sounds like a Transit on steroids) that comes and goes hot or cold. The dealer has been excellent fitting car in at short notice and courtesy car etc,but has now been told by KIA to stop throwing parts at it (had injectors, fuel filter, EGR valve, wiring and air mass meter changed). Engine management computer shows no faults and 50% of the time (usually when in the garage for repair) the car runs perfectly. Fuel consumption drops by 6 mpg when running poorly and acceleration suffers also, but no smoke from exhaust. Getting fed up with it now especially as KIA have said they wont do anything more until they can "see" the fault for themselves. Really needs a good tune up on a rolling road, but don't see why I should pay for that!.







If anyone has any ideas; I would appreciate their input.
 

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Discussion Starter · #3 ·
Thanks Viking Paul, I ONLY use branded fuel. Currently Esso, having changed from Shell in case of fuel contamination. No difference noted aftertwo thousand miles! Also the problem can come and go during a day - running perfectly acceptably for perhaps an hour and then suddenly changing to diesel knock, reduced power and an increase in diesel consumption.
 

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Discussion Starter · #6 ·
This happens at all revs but is more noticeable at lower revs as its easier to hear the noise. However at higher revs the lack of power and poor fuel consumptionis more apparent.

As to the excellent suggestion about Bosch system; I would prefer KIA to pay for that and if they can't fix my car they should be thinking about inviting Bosch to look at it. ( Trying another tack with KIA at the moment , but will go to Bosch myself soon if no joy with KIA.) Thanks for the idea.Edited by: Retired and content
 

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Discussion Starter · #7 ·
Update on my SW:- Took the car for a rolling road check last week, to try and get to the bottom of problem. Garage could not monitor all the outputs from KIA computer onboard, so were unable to confirm exact problem, but did manage to record the"miss-fire or whatever it is".Seems that there is an "issue" with the engine management system as car was logged at 153bhp (138 published by KIA) and was also the same 10% up on torque at 250ft lbs. KIA Technical have gone very quiet and not replied to my dealer??????? Rolling road man said that any diagnostics would be difficult until the reason for the extra bhp/torque is confirmed, so I am stuck again waiting for KIA to find a solution.


Guys;- Has anyone out there had their 2.0 crdi on a rolling road and noted extra power? Any comments appreciated, thanks.
 

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Discussion Starter · #10 ·
Hi Yesitsmeagain;
Sorry to be so long in reply but been over to France and no internet chez moi.

I can't go down the courtesy car route as KIA won't let it out of the country (UK) - hence can't get to my second home in France. The car is standard, owned by me from new and 9 months old. KIA now say that the readings from the dyno test are what they would expect, as is the map on my ECU.

Have been in touch with KIA on a direct level - like talking to a politician. "We can't fix a fault that isn't there when we have the car in our dealership." I have changed dealership to try and get problem fixed, so let's see where new guys go.........

I managed 120 miles on 19 litres of diesel last week - about 70 miles less than I would expect as a minimum. KIA technical have now asked that I do a fuel test for 60 miles at 60mph and engine hot, with all electrics off (climate control, heated screen etc & full tank to full tank) funnily car now runs better if temperature is below minus 3. I have a view that oil temperature sender is causing problem, but can't monitor it myself - KIA say "no fault found on any ancillaries".



Off to France again at weekend, will update on return. Hopefully car will break down there and then International Rescue will fix it.
 

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Discussion Starter · #12 ·
Hi 1180,
I was watching the test and as far as I could see he just accelerated. He did this by pressing the throttle pedal from driver's seat - don't think my car has a specific overboost button fitted.
 

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Discussion Starter · #15 ·
Hi murphwiz, I had queried rolling road output and it was confirmed (and I saw sheet technician had left) that rolling road had been recalibrated by Sun? (I think that was the name on bill ) that very morning and thus I believe that it was accurate. KIA seemed to accept that plus 10% output was not unusual.
I still think the ECU thinks engine is cold and is increasing fuel and advancing injection. Temp gauge seems to read OK but oil temperature did show up on rolling road screen as one of the things that machine could read from ECU; whilst on second run the car dieselled and power graph showed a slight drop at 1800 rpm in power and torque. What was surprising was that oil temp dropped 2 degrees during second run and NO visible smoke came from the exhaust, on any run??

Off to chilly France will update on return.
 

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Discussion Starter · #18 ·
Hi again all, problem still ongoing. KIA engineer had vehicle for a day - wrote 5 pages of report and summed up at end of last page to say no faults found, even though he described faults on first page.


I now have an independent report that says vehicle has a pre-injection fault from an injection and fuel pump specialist so with that:-



I am now going to take legal action or just trade the ceed for a VW!! KIA don't seem to want to know and the dealers are worse than useless and their customer care and technical departments are hell bent on not paying anything or admitting they have a fault.



Some ceeds have injector problems caused by cheap Indian-made injectors - mine has an issue with ECU which is very rare and because of this KIA don't recognise it as a "fault".



Hope this helps - "SW sell it quick!!"
 
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