2015 1.6 Blue HDi 120 308 Adblue problem

This is the Forum for all your Peugeot Technical Questions, Problems or Advice.

Moderator: RichardW

User avatar
GiveMeABreak
Forum Admin Team
Posts: 37396
Joined: 15 Sep 2015, 19:38
x 5741

Re: 2015 1.6 Blue HDi 120 308 Adblue problem

Post by GiveMeABreak »

The topic has been re-split Tom.

This one concerning the 308:
viewtopic.php?t=81326

This one concerning the Picasso:
viewtopic.php?t=81358
Please Don't PM Me For Technical Help

Marc
Tom309
Donor 2023
Posts: 70
Joined: 22 Nov 2020, 21:41
x 10

Re: 2015 1.6 Blue HDi 120 308 Adblue problem

Post by Tom309 »

"The topic has been re-split" - That's good.

I've eventually found the problem to the "open circuit" Adblue/Urea Injector on my 308. The engine bay fuse F4 (5A) was blown.
Note that the fuse blew due to a injector failing short-circuit .

In case anyone is trying to fault find their car, after replacing the fuse:
I've measured the voltage on the connector when disconnected from the Adblue injector (Ignition on, engine not running)
Pin 1 to chassis earth: 12V
Pin 2 to chassis earth: 3.4V
Pin 1 to Pin 2: 8.7V
I only measure the connector when un-pluggeg as I working from the top of the engine.