cdl engine issues

[betts]

Hi, I've had to replace the engine in my cupra and I've put a cdl engine from a golf r in it but the car seems to have an intermittent missfire and when coming to a stop the revs rise to about 2.5k before slowly dropping down to a normal idle, is there anything that needs changing over to the new engine sensors ect?
Any help will be much appreciated because I'm losing the will to live after spending 3k getting the car fixed and it's still not right

 

[WeeG]

Hi, I've had to replace the engine in my cupra and I've put a cdl engine from a golf r in it but the car seems to have an intermittent missfire and when coming to a stop the revs rise to about 2.5k before slowly dropping down to a normal idle, is there anything that needs changing over to the new engine sensors ect?
Any help will be much appreciated because I'm losing the will to live after spending 3k getting the car fixed and it's still not right

Check your PCV valve, coilpacks, sparkplugs

 

[betts]

I've changed the plugs and coil packs but still got the same problem

 

[big eck]

Could be the Injectors mate. They might be carbon'd up.

 

[WeeG]

I would honestl check your PCV valve from what you are describing

 

[betts]

I think it only happens once the car is warm but I'll check the pcv valve later

 

[gunnergibson]

May be worth scanning for faults with VCDS or VAS... mine was ( still is ) holding revs at around 2k / 1.5km when letting off the throttle.. ie pulling up at a junction / lights... They hold for around 5-10 seconds then drop back to the correct rpm. Annoying.

I scanned it and it brought up the following fault:

001089 - EVAP Emission Control Sys
P0441 - 002 - Incorrect Flow - Intermittent

I checked the pcv valve and it seemed in good order... research suggests that it may be down to the charcoal canister.

The faults were not throwing the EML on.

 

[betts]

Thanks for your help guys, I will get to the bottom of it even if it kills me

 

[gunnergibson]

Any joy?

Sent from my Nexus 4 using Tapatalk 2

 

[gunnergibson]

I've solved my issues. I will need to post pics though.. There is a pipe which leads into the charcoal canister that felt loose where it connects in. I turned and pushed it.. Along with shaking the canister for effect lol.

Nothing needs disconnecting.

Sent from my Nexus 4 using Tapatalk 2

 

[wezy0]

I'm getting the same checked pcv an DV.its doing my head in. checked pipe I'll dubble check tomorrow

 

[gunnergibson]

Ignore my earlier post.. The prob persisted. I resolved it with revision N pcv.

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[wezy0]

Ok sound mate.

 

[gunnergibson]

i'l dig out the pics of the old one .. you'll understand why it was affecting idle

 

[wezy0]

Ok bud.ive got the new type the latest one .an have a spare so will try.mine only does it when warm.

 

[gunnergibson]

is it the new type which is on? If it is and it is fairly new, and the spare doesn't help then consider that charcoal canister.. I scoured the mk5 Golf forum ad a few individuals changed that.

 

[gunnergibson]

 

[wezy0]

Yeah new one is on.will put old one on a check.can they stick open?on inspection it works as it should.a hole new canister or the n80? Cheer for the help

 

[wezy0]

Or right so not just the check valve

 

[gunnergibson]

Nope.. check valve was fully operationally on the above valve.