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Discussion Starter · #1 ·
So I have had this issue for along time now.. Kia said nothing was wrong. I have changed the egr valve twice and recently changed the egt at the manifold. Would I be right in thinking the one by the cat would be the next one to change??
Any further help would be greatly appreciated

tia

Mike
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So I have had this issue for along time now.. Kia said nothing was wrong. I have changed the egr valve twice and recently changed the egt at the manifold. Would I be right in thinking the one by the cat would be the next one to change??
Any further help would be greatly appreciated

tia

Mike
View attachment 10007
I think I'd be asking the question why after changing the EGR twice, is this problem recurring?

Could it be an issue with the wiring, for example?
 

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When my 2.0 crdi ceed had egr issue the valve was ok after a good clean but the cast iron exhaust manifold exit was completely full of soot 40mm thick, dug out with a screwdriver and vacuum.
I also had a low flow egr warning a few months ago and this was cured with a 3000 rpm steady 20 minute drive on motorway (Italian tune up).
Do you have any live data on your reader like mine which can watch egr opening and error %?
 

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Discussion Starter · #4 ·
Yeah I got a Bluetooth obd2 reader.. shows live readings.. never thought about the manifold. I had an engine clean by Terra clean once and was ok for about a year.. but I’ll look to see about live data
 

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Discussion Starter · #5 ·
When my 2.0 crdi ceed had egr issue the valve was ok after a good clean but the cast iron exhaust manifold exit was completely full of soot 40mm thick, dug out with a screwdriver and vacuum.
I also had a low flow egr warning a few months ago and this was cured with a 3000 rpm steady 20 minute drive on motorway (Italian tune up).
Do you have any live data on your reader like mine which can watch egr opening and error %?
Hey Richard,

Did some long driving this weekend and managed to get some data..
 

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Hi,
Search this section under, it has a lot of my data reading. I know your is a 1.6 and not sure of your EGR is vacuum or electronic? Up load your data once you have checked and sure someone will be able to help.
2.0 crdi hesitancy when accelerating
 

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Discussion Starter · #7 ·
Thanks buddy

it’s an electronic egr.. what I have notice also is when I mash the throttle the position stays at 12% same when I lift off too


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Throttle position sensor on pedal, does the car accelerate normally when pedal pressed? I also in the past had the swirl motor stick, this is a black plastic motor on end of intake manifold which moves flaps at I think 3000 rpm and also shuts when to switch engine off, easy to remove and spray with white grease.
My Egr range goes from 4.7% to 39% in use from cold to hot, when I took mine apart the valve moment is only about 5mm from close to fully open, there is a bleed shaft from bottom valve to top which takes some cleaning but in my posts the cast iron exhaust manifold was filled with over 30mm of soot which I vacuumed out, egr cooler also cleaned.
Keep updating and sure we will find the cause.
 

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It really is pointing at the throttle sensor but no expert, it could be the pedal sensor or the throttle position sensor on the manifold, you can see repair kits on Ebay as the cogs wear and cause issues.
The only way you can be sure is to look to go on a rolling road/ diagnostic and see what they find. Years ago when had racing classic mini engines the different power you had if bonnet was up or down due to air flow/heat build up, this can only be tested on a rolling road with load on the wheels and car put through the gears.
Have a search around for a bosch rolling road specialist.
 
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