Oh cool. So basically it would result in a different error code! Cool. I was feeling really confident it was the Adblue tank, and then this other post made me start questioning that!!! I'm back to believing it's the adblue tank!The Denox system (which uses eurea, also known as Adblue (registered trade name)) sprays the eurea on to the catalytic converter in the exhaust system to reduce the nitrous oxides (Nox) that contribute to air pollution. Also know more generically as a "reductant" system (Peugeot/Citron name for this is Denox). The fault P20E8 description refers to "Denox", or if using a non-Peugeot generic reader "reductant". The car will also displays the "eurea" dash warning.
The additive system (separate tank and pump ) injects Eolys directly into the diesel tank after refuelling. This additive then helps the soot caught in the dpf to burn off during a regeneration. So it has different fault codes. These would have in the description "additive" and would generally show up on the dash as some sort of dpf warning. If this system stops, it can lead to clogging of the dpf.
I don't have a milage count down on my errors. I drive for 5km, then the engine error light comes on, then the 1 km later the emissions light comes on. This is the report I get from my reader.So FAP pump is pretty common failure too. There will be one big difference : no milage count down and more error codes (including 20E8) which the o2 sensor fire about the soot build up.
The good news: the tank cost much less than urea tank.
have you had the Nox Sensor checked?Hi. Firstly thanks to everyone who has contributed to this thread, a huge amount of information and knowledge in here! I think I've read every post, but I wanted to get views on what's happened to my car to see if I have the dreaded failed pump issue.
Car is a 2016 Peugeot 3008 16 blue HDi with just under 50,000 miles. It has the 'new' cap and this was there when I bought the car at 28,0000 miles. A couple of weeks ago the Urea 1500 mile warning came on. I made a mental note to buy some adblue the following day, but had a long journey so planned to do it as I came home.
On my journey home, in torrential rain, speeds were down to 40mph on the motorway, suddenly I had the engine fault light came on, the emissions control fault and lots of grey smoke coming out of the back. I drove another 3 miles to the nearest services. Stopped and checked the error codes. There were about 10, but unfortunately at this point I didn't write them down, however P20E8 was one of them.
As the adblue level was low anyway, I bought 10l and topped up. In filling up I noticed the base of the boot was warm to touch. I cleared the faults and started again. Within a few miles emissions fault came up again with the engine warning light. I stopped once more, there was still some grey smoke with the only fault code being P20E8. Cleared fault again and drove the remaining 10 miles home with the fault, engine warning etc coming on again after a couple of miles.
While trying to work out the issue and reading this thread I've left the car for a few days. I took it out this evening and didn't receive an emissions or engine fault light and no warning on the Urea. The car stinks however and the emissions are clearly really bad. No grey soke now, but on revving while stationary the exhaust is staining the tarmac.
I rechecked for fault codes and this time the only code is P2OF6.
If you've got this far, thanks very much for reading! Questions are:
1. Have other people had grey smoke and/or a hot boot with this issue?
2. Does the change in the fault code mean it's more likely to be the injector rather than the tank?
Many thanks in advance. I'm hoping to be forearmed with as much knowledge before I either approach a Peugeot mechanic or start pulling it apart myself!
Hi i had the same issue with RAC who carried out the check said i had loads of codes cleared them all except the P2OE8 relating to pressure in AdBlue tank i removed cap and took tiny filter out drove around and guess what the error code went that was 3 weeks ago so far so goodHa, yes there were lots of error messages. The person who did the test said all the ones that say [Archive (inactive)] can be ignored. Which is pretty much all of them except the P20E8 code. Does make me worry though if I should just do a quick fix regarding the urea issue and p/x the car for a different model!!
That is great! I hope other's will follow.
Wray would the product code be for the fap tank for the Peugeot 308sw 16 reg? This sounds exactly like what is happening.So FAP pump is pretty common failure too. There will be one big difference : no milage count down and more error codes (including 20E8) which the o2 sensor fire about the soot build up.
The good news: the FAP tank cost much less than urea tank.