Hdi 16v lambda

Questions specifically about a Diesel powered C3 (usually engine or fuel related problems)
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Diesel engine related problems
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My Name: Huxley309

Experienced Member
Posts: 44
Joined: Sun Feb 23, 2014 5:09 am
Model: C3 2002-2005, Original shape model
Year: 2003 (03)
Engine Size: 1.4 (16v)
Fuel Type: Diesel
Mileage: 67000
Trim Level: Exclusive
Gearbox: Manual 5 speed
DPF: No

Post

I feel mine has gone, I get an intermittent cel when idling and when using the turbo it'll cut out.
I know from experience it'll be the lambda.
Trouble is there are several, and they list a front and rear sensor?
I'm guessing they're either side of the cat, and are they hard to change?
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My Name: C3driver52

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Posts: 1854
Joined: Sat Apr 30, 2011 7:40 pm
Model: C3 2002-2005, Original shape model
Year: 2003 (03)
Engine Size: 1.4 i
Fuel Type: Petrol
Mileage: 79984
Trim Level: VTR+
Gearbox: Manual 5 speed
DPF: No
LHD or RHD: RHD (UK)
Engine name: TU3 (75 PS)
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Huxley309 wrote:I feel mine has gone, I get an intermittent cel when idling and when using the turbo it'll cut out.
I know from experience it'll be the lambda.
Trouble is there are several, and they list a front and rear sensor?
I'm guessing they're either side of the cat, and are they hard to change?
Hi Huxley309

Unfortunately not, there is no Lambda or O2 sensor on the Diesel (HDi) engines.

If the engine cuts out when accelerating hard, you are looking at an intake problem I would suggest - Is your air filter ok?

Possibly EGR problems?

The best way to diagnose is to read the codes with this lexia tool.

The forums Lexia topic is in this link.

With the lexia you can see which codes are stored and take it from there.
My Name: leandroherrera

Contributor
Posts: 8
Joined: Sat Nov 02, 2019 4:37 pm
Model: C3 2017-on. The new C3
Year: 2018 (18)
Engine Size: 1.4 (16v)
Fuel Type: Diesel
Mileage: 45000
Trim Level: Stop & Start
Gearbox: Manual 5 speed
DPF: Yes
LHD or RHD: LHD
Engine name: BlueHDi (75 PS)
Has thanked: 3 times
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What do you mean by "there are NO lambda or oxygen sensors in diesel engines"?
Anyway, I need to know how to change the second oxygen sensor in my C3 2008 (not the "new" C3) please? I mean, is it to be accessed from under the car or from the front?
Thank you very much
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My Name: C3CAR

Guru
Posts: 2610
Joined: Wed May 04, 2011 10:01 am
Model: C3 2002-2005, Original shape model
Year: 2002 (02)
Engine Size: 1.4 (16v)
Fuel Type: Diesel
Mileage: 140000
Trim Level: Exclusive
Gearbox: Manual 5 speed
DPF: No
LHD or RHD: RHD (UK)
Engine name: DV4 16-valve diesel (90 PS)
Has thanked: 144 times
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leandroherrera wrote: Tue Nov 05, 2019 10:19 pm What do you mean by "there are NO lambda or oxygen sensors in diesel engines"?
Hi

There are no O2 sensors on the HDi engines.

The post is about the 1.4 HDi 16v and this doesn't have an o2 sensor, but then neither does the 8v 1.4 HDi diesel engine of the same era and later 1.6HDi doesn't have it right up to 2009.

You don't get O2 sensors on the Diesels until the A51 2010 which needs tighter emission control.
leandroherrera wrote: Tue Nov 05, 2019 10:19 pm Anyway, I need to know how to change the second oxygen sensor in my C3 2008
What fault codes do you have for O2 sensor and which tool read the codes?
leandroherrera wrote: Tue Nov 05, 2019 10:19 pm my C3 2008 (not the "new" C3) please?
You don't say what engine you have

and you confuse the issue by listing these details
Model: C3 2017-on. The new C3
Year: 2018 (18)
Engine Size: 1.4 (16v)
Engine name: BlueHDi (75 PS)
my C3 2008 (not the "new" C3)
leandroherrera wrote: Tue Nov 05, 2019 10:19 pm I mean, is it to be accessed from under the car or from the front?
The later models have them and they are located in the top of the exhaust manifold. So you just need to open the bonnet.

Please attach your photos following these instruction if you think that may help to identify the car and its engine and definitely if yours has the oxygen probe fitted :D