Driving on A303 last evening, bit of rain so not too good, doing 65 ish and came up to a slower truck on a slight incline. Dual carriageway, so pulled out to overtake and put my foot down a bit to accellerate.
Beep! Engine fault. And limp mode kicked in immediately. Stuck in outside lane, car coming up behind and no accelleration. Wonderful.
Limp mode continued, but found a layby and stopped. Turned ignition off then on again. EML still lit and warning comes up, but driving off, normal performance.
So today checked with generic ELM EOBD anf it tells me P2448 Secondary Air Injection bank 1 - Air flow high. No other faults found, none in memory.
Eventually booted up the laptop and ran Diagbox (what a slow business).
That then came up with several ECU codes.
P2448 Inlet air circuit, air flow greater than maximum.
P02EC00 Inlet Air circuit - air flow lower .
P2A00 NOX sensor - richness measurement faulty. Temporary.
P2463 Particulate filter detected overloaded. Temporary. Checked this in more detail and the regen seems fine, and current figures suggest there was no permanent problem. But I do regularly get the "risk of clogging" warning which stays on for a minute or so, sometimes 3 or 4.
So does anyone know what this P2448 is all about, and why on earth it triggers the limp mode when if you turn the ignition off and on the limp mode goes away.
This is the 2015 308 SW 1.6 Blue HDi 120.
What inlet air circuit is it talking about? I wan't aware diesels had secondary air injection, and anyway it's normally only used at start up, not on an engine that's already 50 miles into a journey.
Beep! Engine fault. And limp mode kicked in immediately. Stuck in outside lane, car coming up behind and no accelleration. Wonderful.
Limp mode continued, but found a layby and stopped. Turned ignition off then on again. EML still lit and warning comes up, but driving off, normal performance.
So today checked with generic ELM EOBD anf it tells me P2448 Secondary Air Injection bank 1 - Air flow high. No other faults found, none in memory.
Eventually booted up the laptop and ran Diagbox (what a slow business).
That then came up with several ECU codes.
P2448 Inlet air circuit, air flow greater than maximum.
P02EC00 Inlet Air circuit - air flow lower .
P2A00 NOX sensor - richness measurement faulty. Temporary.
P2463 Particulate filter detected overloaded. Temporary. Checked this in more detail and the regen seems fine, and current figures suggest there was no permanent problem. But I do regularly get the "risk of clogging" warning which stays on for a minute or so, sometimes 3 or 4.
So does anyone know what this P2448 is all about, and why on earth it triggers the limp mode when if you turn the ignition off and on the limp mode goes away.
This is the 2015 308 SW 1.6 Blue HDi 120.
What inlet air circuit is it talking about? I wan't aware diesels had secondary air injection, and anyway it's normally only used at start up, not on an engine that's already 50 miles into a journey.
