406 2.0HDi Fault Code

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Oli - 02 Dec 2006 17:58 GMT

Hi

I have had the fault codes of my 406 2.0 HDi yr2002 read.

It has come up with fault code 1166 on a Siemans ECU. Does anyone know what
this code represents? I am having very poor fuel comsumption (33-36mpg at
absolute best) so hopefully it is going to be something to do with that.

On another note I need a new seatbelt pre-tensioner for the driver's side -
is this likely to be expensive and/or is it easy to replace??

Thanks in advance,
Ol

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Marc Amsterdam - 02 Dec 2006 18:38 GMT

>Hi
>
[quoted text clipped - 3 lines]
>this code represents? I am having very poor fuel comsumption (33-36mpg at
>absolute best) so hopefully it is going to be something to do with that.

This code is for the air fuel ratio in general
your car being a HDI it suggests that is misreads the airflow comming
into the engine.
from the airfilter box to the turbo inlet there is a air weighter, 10
to 1 this is the culprit, and if is is, you save enough on one full
tank of diesel to get you another one, it should not cost you more
than 40 quid and 2 minutes to install

where did you have your ecu diagnosed? a pug dealer could say you
right away what the coe means

>On another note I need a new seatbelt pre-tensioner for the driver's side -
>is this likely to be expensive and/or is it easy to replace??

its an ordinairy piece of fireworks, should not brake the bank but be
carefull, it can easely rip your flesh to the bones if that gets off
in your hands..

cheers

Marc

>Thanks in advance,
>Ol

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Oli - 04 Dec 2006 17:59 GMT

> Hi
>
[quoted text clipped - 10 lines]
> Thanks in advance,
> Ol

The car has now been to a main dealers for the fault codes doing. The
report is as follows:-

ECU Fault Code: P1166
Engine Speed: 864RPM
Measured injected flow: 8.96 mg/impulse
Coolant Temperature: 47 deg c.
vehicle speed: 0 k.p.h
Battery Voltage: 14.35 Volt(s)
Engine Status: idling
Time elapsed since ignition positive: 42 second(s)
Diesel Temperature: 38 deg. c.
Diesel pressure: 410 bar(s)
Pressure regulator OCR: 0 %
Flow regulator OCR: 22 %

"Intermittent fault. Diesel high pressure monitoring. Pressure controller
at stop."

Peugeot tell me that my economy problem is due to the DIESEL PRESSURE.
Apparently 410 bar(s) is far too high. They have suggested i examine the
high pressure pump, and sensors.

Anyone any other ideas as the high pressure pump does not sound easy to get
to.

TIA
Ol

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