2015 1.6 Blue HDi 120 308 Adblue problem

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GiveMeABreak
(Donor 2016)
Posts: 41989
Joined: 15 Sep 2015, 19:38
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Re: 2015 1.6 Blue HDi 120 308 Adblue problem

Unread 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Please note, I'm no longer active on the Forum, so won't respond to messages.

Marc
Tom309
(Donor 2023)
Posts: 75
Joined: 22 Nov 2020, 20:41
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Re: 2015 1.6 Blue HDi 120 308 Adblue problem

Unread 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.