New to VCDS. Suspect I may have a EGR/cooler/link pipe issue, but no conclusive relevant engine fault codes yet. Sometimes nearly stalls and drops into limp and occassionally can stall but then flashing glow plug light clears on restart. Thought would run the test and post to compare results to...
I’ve now had 2 quotes but no one has completely confirmed the issue. Just quoted to replace both EGRpipes.
I’m struggling to get anywhere with diagnosis and I’m laid up with COVID which sucks.
My local specialist, as I’ve stated, wants £500, though I’ve gone back to them to see if they can cut...
I changed my 204 egr and you need to drain the coolant, there are so many pipes you should expect a drop in coolant level afterwards even with vacuum filling.
Top it up and recheck every few days. You shouldn't have to refill too much. Take note of how much you put in. If it's more...
Yes. The Darkside Dev blanking plates were too thick to slide in and retain the pipes. I’ve considered getting the pipes welded/blocked off and refitting them so it looks OEM. Just not gotten round to it. Mot due September. So times ticking.
Exhaust Manifold To egr inlet pipe, I bought one of these from Vw parts centre in Liverpool on Friday, and it was surprisingly cheap at just £27!
The bloke on the desk said they sell lots of these, it’s a common failure, hence having the part, the gaskets and new bolts in stock on the shelf...
From experience a leak on the EGRpipes of exhaust manifold can trigger the control not reached fault as it's not building enough boost or dropping off to fast. Under hard load the turbo makes more boost than is escaping under light throttle very little boost any way.
I'd start with resolving...
It looks like you have two threads running on this, maybe one of the Moderators could merge them?
It’s possible that one or both of the EGRpipes are heavily fouled.
If the engine is consuming excess oil it will create soot and block the EGR and DPF.
How much oil are you adding and at how many...
P040100. Staus: Intermittent
I have checked the egrpipes as best I can for leaks, no smell, nothing obvious.
Am I right in thinking this could be the valve not opening sufficiently?
If physically blocking/blanking the EGR is a 'good' thing, then why would an insufficiently low flow of egr...
Fumes in cab wasnt great either
: EGR flexi-pipe: Exhaust Fumes In Cab, Hissing From Engine Bay.
that was the EGR flex pipe at the rear of the engine.
a git to get off, but all covered under warranty . .
.
...long time.
For those that have had it done has the DPF been fine after getting the EGR mapped out?
It occurs to me that after blanking the EGRpipes and running it like that for a few years it would be really stupid to then unblank the EGR again as the cooler will probably be a corroded mess...
...at about 17% so that seems good and regen occurs at the usual 30g or so level then works it’s way down to lower than 6g then stops….calculated stays low and measured jumps up then regens again within a few minutes/ miles!
This is about 700 miles after a new turbo and egrpipe as previously...
During "normal" running only engine braking turns off the recirculation (on hot engine) - all other times recirculating.
An example plot here:
https://www.t6forum.com/threads/egr-error-codes-p040d00-p040c00-temp-sensor.44985/post-599620
During active DPF regeneration the EGR won't recirculate...
Just up date guys
Replaced the intake manifold cleaned out to inlet ports of carbon as best as possible and Egrpipe checked valves using bore scope could see no damage. Built it all back up road test over 100 kms went well full power no faults. Time will tell if there’s anything else causing...
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