My 96 2.0L 16V manual gear xantia is 'drinking' fuel like if it was free.
It all started after i bought the car a few months ago, the consumption was 1L/11Km, and it was time for new plugs, oil and filters changed.
I did that myself making sure that all the parts and liquids are bought from the main dealer which uses original parts.
At that time i also replaced my Catal. converter.
Since then, i had the K warning light turned on a few times and so i checked and cleaned the lambda sensor's connector.
The problem is that now the car is using up 1L per 7Km (!!!) of fuel.
I took the car for an inpection and everything seemed normal, they told me to check the fuel consumption again and return to them.
I need help because the consumption is still very high.
Could it be that the cause for this high consumption is the Lambda sensor?
Can it be something else (like catal. converter that don't fit)?
Another q., is there only one Lambda sensor in my car and is it really supposed to be located right infront of the catal. converter?
Xantia is using up too much fuel
Moderator: RichardW
Xantia is using up too much fuel
Xantia 2.0L 16V manual trans. 96
Xantia 1.9L TD 99
Xantia 1.9L TD 99
You say you got it checked, was it connected to a computer by citroen for diagnostic checks and reset?
Chances are maybe a sensor 'is' failing and the computer is sometimes in LIMP (safe), mode hence the high consumption, but Citroen would have noticed this, unless it's an intermittent fault. Try checking all the sensors wiring, a bit of WD40 here and there.
As far as i understand there is no need for more than one lamba sensor, also it's just there for cold starting. So maybe check the wiring for this especially, or to give peace of mind, replace it anyway, they are simple components and I would recommend not buying from Citroen where you maybe pay 5x as much. Up to you.
Also try checking the tracking (wheel alignment) too, that can help a lot in some cases.
Finally, check that there are no physical fuel leakage somewhere between the fuel tank to the injectors, check with the engine running as this runs the pump.
No lead or gold in the boot?
Chances are maybe a sensor 'is' failing and the computer is sometimes in LIMP (safe), mode hence the high consumption, but Citroen would have noticed this, unless it's an intermittent fault. Try checking all the sensors wiring, a bit of WD40 here and there.
As far as i understand there is no need for more than one lamba sensor, also it's just there for cold starting. So maybe check the wiring for this especially, or to give peace of mind, replace it anyway, they are simple components and I would recommend not buying from Citroen where you maybe pay 5x as much. Up to you.
Also try checking the tracking (wheel alignment) too, that can help a lot in some cases.
Finally, check that there are no physical fuel leakage somewhere between the fuel tank to the injectors, check with the engine running as this runs the pump.
No lead or gold in the boot?
there is no problem with tyres (new), the old ones were even all around them, the pressure is good there.
Also there is no fuel leaking, i checked that.
the car was connected to a computer that showed a problem with the lambda sensor not working, but after cleaning the plug the computer showed it's ok, can a faulty sensor cause such an extreme fuel consumption?
When i installed the new (replacement) catal. converter, i found out that the old one's inside has been stripped and was empty, could it be that the ECU computer needs adjustment?
I was told i can reset it if i take out it's fuse and disconnect the battary for a few minutes, does anyone know something about it?
Also there is no fuel leaking, i checked that.
the car was connected to a computer that showed a problem with the lambda sensor not working, but after cleaning the plug the computer showed it's ok, can a faulty sensor cause such an extreme fuel consumption?
When i installed the new (replacement) catal. converter, i found out that the old one's inside has been stripped and was empty, could it be that the ECU computer needs adjustment?
I was told i can reset it if i take out it's fuse and disconnect the battary for a few minutes, does anyone know something about it?
Xantia 2.0L 16V manual trans. 96
Xantia 1.9L TD 99
Xantia 1.9L TD 99
Have you got any data on your cat ?
I'd say any cat suitable for 2.0-2.5 L engines should readily fit.
And no it would not be the Lambda sensor giving bad data because of this.
The Lambda sensor itself could of course be bad. You can only check if the preheater element in the Lambda sensor is working. The sensor element itself in the Lambda sensor can not be tested - other by substitution with a known good sensor.
Have you had the sensor out and tried cleaning it ? That will most sure damage the sensor as it relies on a thin layer of special bounded metals on the surface.
I'd say any cat suitable for 2.0-2.5 L engines should readily fit.
And no it would not be the Lambda sensor giving bad data because of this.
The Lambda sensor itself could of course be bad. You can only check if the preheater element in the Lambda sensor is working. The sensor element itself in the Lambda sensor can not be tested - other by substitution with a known good sensor.
Have you had the sensor out and tried cleaning it ? That will most sure damage the sensor as it relies on a thin layer of special bounded metals on the surface.
Anders (DK) - '90 BX16Image
The cat. is BOSEL, don't have other data on it.
No, i did not try to clean the sensor, but when they replaced the cat., they moved the sensor about 10 cm towards the front of the car and located it on the pipe (originaly it was on the front of the cat.).
today i will replace the sensor and get back to you.
thank you so far.
No, i did not try to clean the sensor, but when they replaced the cat., they moved the sensor about 10 cm towards the front of the car and located it on the pipe (originaly it was on the front of the cat.).
today i will replace the sensor and get back to you.
thank you so far.
Xantia 2.0L 16V manual trans. 96
Xantia 1.9L TD 99
Xantia 1.9L TD 99
- Huskyxantia
- Donor 2023
- Posts: 2056
- Joined: 30 Jul 2018, 22:11
- Location: Surrey Kent sussex border
- My Cars: Past cars
Xsara Picasso 2019 to 2022 r.i.p
Xantia mk1&2 1.9D & 2.0Hdi
Peugeot 206 sw 1.4hdi
Other models
Skoda fabia,escort van,ford ka,Vauxhall astra g car & estate, Vauxhall corsa b, Suzuki swift
Escorts mk 1,2,3,4,5 fiestas mk 1,2, Sierra diesel mk1 Mondeo mk1 diesel .
Peugeot 207 , 307sw
Now cars
Picasso 2.0Hdi now gone to scrappie
Citroen zx estate 1.9D the cherished one
Peugeot 206cc raised from the dead & saved from the crusher traded up to a 308cc
307sw traded for the 207 .
Wish list.
Peugeot 405 diesel
106 or 206
Mondeo Mk1 diesel once owned 1.8tdi was real nice. - x 429
Re:
wonderd wrote: ↑26 Mar 2006, 07:42 The cat. is BOSEL, don't have other data on it.
No, i did not try to clean the sensor, but when they replaced the cat., they moved the sensor about 10 cm towards the front of the car and located it on the pipe (originaly it was on the front of the cat.).
today i will replace the sensor and get back to you.
thank you so far.
So ........ Was reading with interest ....
What happened !
Husky.
- xantia_v6
- Forum Admin Team
- Posts: 9094
- Joined: 09 Nov 2005, 22:03
- Location: France or NewZealand
- Lexia Available: Yes
- My Cars: -
1997 Citroen Xantia V6 (France)
1999 Citroen XM V6 ES9 (France)
2011 Peugeot 308 CC THP 155 (NZ)
1975 Jaguar XJ-S pre-HE (NZ) - x 835
Re: Xantia is using up too much fuel
wonderd has not logged into the forum since 2010, so I suppose he wandered off into the sunset.
- Huskyxantia
- Donor 2023
- Posts: 2056
- Joined: 30 Jul 2018, 22:11
- Location: Surrey Kent sussex border
- My Cars: Past cars
Xsara Picasso 2019 to 2022 r.i.p
Xantia mk1&2 1.9D & 2.0Hdi
Peugeot 206 sw 1.4hdi
Other models
Skoda fabia,escort van,ford ka,Vauxhall astra g car & estate, Vauxhall corsa b, Suzuki swift
Escorts mk 1,2,3,4,5 fiestas mk 1,2, Sierra diesel mk1 Mondeo mk1 diesel .
Peugeot 207 , 307sw
Now cars
Picasso 2.0Hdi now gone to scrappie
Citroen zx estate 1.9D the cherished one
Peugeot 206cc raised from the dead & saved from the crusher traded up to a 308cc
307sw traded for the 207 .
Wish list.
Peugeot 405 diesel
106 or 206
Mondeo Mk1 diesel once owned 1.8tdi was real nice. - x 429