probleme sur mes sondes lambda Chimaera 400 HC 1996

[patmoiss]

Bonjour à tous.
Je suis Patrick, français habitant à Angoulême (Circuits des Remparts... pour les connaisseurs)
Chimaera HC1996
Je rencontre un problême sur mes sondes lambdas. (info 44 sur l'écumat) forte consommation de carburant, crachat noir a la sortie des pots d'echapement.
pour cela j'ai changé les anciennes qui étaient noires et certainement encrassées. J'ai choisi des sondes Titanium.
L'Ecumat me signale l'info 44 et je voudrai tester le cablage electrique . Pour faire cela, pourriez vous m'indiquer quel est le relais ou fusibles pour ces sondes lambdas?
cordialement.
Patrick M
[e-mail]

Hello everyone.
I am Patrick, French living in Angoulême (Circuits des Remparts... for those in the know)
Chimaera HC1996
I have a problem with my lambda probes. (info 44 on the Ecumat) high fuel consumption, black spitting at the exhaust pipes.
For this I changed the old ones which were black and certainly dirty. I chose Titanium probes.
The Ecumat reports info 44 to me and I would like to test the electrical wiring. To do this, could you tell me which is the relay or fuse for these lambda probes?
Kind regards.
Patrick M
[e-mail]

[Belle427]

Most of the information you need will be here, check the wiring to the sensor along its length in the engine bay as there are multiple connectors in it.
Voltage is applied to the lambdas via a contact on the fuel pump relay so although a fuse is involved id almost be sure it isnt that if the car runs ok.
https://www.actproducts.co.uk/category/lucas-injec...

[patmoiss]

hello, Thank you for your quick response and your informations
... I will check all that. have a nice day. Patrick M

[mcosh]

Patrick are you sure it's not something simple like a water temp sensor failure causing overfuelng?

[The Three D Mucketeer]

Codes 44/45 is a definite indication of a Lambda Sensor problem . From my own experience I'd make sure you get original NGK/NTK sensors because the ECU is calibrated for these sensors and there are a lot of Chinese fakes on E-Bay without the required heat insulation.

[blaze_away]

A much better tool for diagnosis is RoverGauge.

Problems being reported as the lambda;s can sometimes be because of some other component causing issues. As suggested by Markabove like a temp sensor.

mcosh said:

Patrick are you sure it's not something simple like a water temp sensor failure causing overfuelng?

[patmoiss]

Hello à tous
Merci, merci à vous pour vos réponses et conseils.
Je prends note de cela. il est vrai que ma sonde de température d'eau (celle du tableau de bord) est très souvent en défaut et la temperature afiichée est 50... 60...70 degrés maxi en roulage. cela me parait faible.
Je vais la changer.
Pour les sondes lambda neuves installées, elles sont "titane " NTK" achetées chez MEAT& DORIA REF 81513.(large bande) ce qui me paraît être de bonne qualité ...
De ce coté, je vais verifier les cables de sondes....
A suivre...je reste en contact.
Patrick M

Hello everyone
Thank you, thank you for your answers and advice.
I take note of that. It is true that my water temperature sensor (the one on the dashboard) is very often faulty and the temperature displayed is 50... 60...70 degrees max when driving. This seems low to me.
I will change it.
For the new lambda sensors installed, they are "titanium "NTK" purchased from MEAT & DORIA REF 81513. (wide band) which seems to me to be of good quality ...
On this side, I will check the sensor cables ....
To be continued ... I will stay in touch.
Patrick M

[Belle427]

Be aware that the water temperature sensor for the gauge is totally different to the coolant temperature for the Ecu fuelling.
Those water temps seem a bit low, what weather temps are you seeing where you live?

[patmoiss]

Hello all.
I think I have solved my lbda probe problem. I noticed that my probes were not electrically powered ... 0 volts! . from there, I check the relay (this relay, for fuel pump - lbda probes - canister) and "surprise" I see 4 pins instead of 5. I look for the reason for this and I remember the relay change that was made by my mechanic. Indeed, he installed this relay without realizing the number of pins. He is sorry.
Well everything is back in order.
Please, I have another question: the MEAT 81513 and FAE 77538, titanium lambda,are they compatible with the 14 CUX ECU?
Thank you for your cooperation
Sincerely
Patrick M

[Belle427]

Good result.
Can't help much with the lambda sensors.
Assume you mean meat and doria brand?
Here in the UK we try to look for NGK/NTK or similar for reasonable quality.