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Oxygen Lambda Sensor Cleaning

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Want to avoid replacing your O2 Sensor?
Carbon Cleaning is your best option!

What is the purpose of the O2 / Lambda sensor?

The O2 (Oxygen) Sensor or Lambda Sensor as it is known in the the trade is located before the Catalytic Converter in the exhaust system.

The job of this probe is to measure the amount of oxygen left in the remaining burnt gases as they exit the engine and send this information to the ECU (Engine Management Unit). The ECU can then calculate the correct fuel / air mixture for the ideal combustion which lowers fuel consumption and in turn reduces emissions. This is important for passing MOT and roadside emissions tests.
More recent regulations require a second 02 sensor to be positioned after the Catalytic Converter so that the effectiveness of the converter can be measured.

Why you should the Lambda / 02 Sensor be replaced?

If there the sensor is faulty it will send incorrect readings to the ECU and therefore the calculated air to fuel ratios will be incorrect. This will cause the engine to stutter, run lumpy and increase fuel consumption.

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  • Graham Matthews AvatarGraham Matthews

    Had James remap and carbon clean 2 of our T5 transporters today.
    Great job, great guy , wouldn't hesitate to recommend him to others.
    AND , the vans now breath easier and go!!!!

    Liann Paranjoti AvatarLiann Paranjoti

    I used UKCC Auto Techs's engine carbon cleaning for the first time today and my car feels like new again! I was going to take my car for a service even though it wasn't due for one because my car was lacking power and had excessive white smoke coming out of it, I am so glad I went to UKCC Auto Techs instead because apparently a service wouldn't have solved the problem. This service has saved me a fortune highly recommend!

  • Michelle White AvatarMichelle White

    Adam is an amazing guy, I rang him and he was at mine within an hour. He talked through everything with me, explained each bit as we went along and made my emissions light dissapear! Also, wow, the difference to my vw sharan is amazing. Cannot thank him enough or recommend him enough. If your having doubts, don't!!! Go ahead, do it!!

    Kelvin Stanners AvatarKelvin Stanners

    Had my Audi A4 sline remapped yesterday and I would highly recommend this to anyone, excellent service and the outcome is amazing

  • Tony Dixon AvatarTony Dixon

    Got a stage 2 clean on my scirocco yesterday and what a difference it’s made! Great service from start to finish to highly recommend to anyone.

    Carl Wood AvatarCarl Wood

    I have a Audi A4 2liter convertable tdi.
    Going down the motorway the other day my coil light came on and I lost power. so I called the AA out they said it's in limp mode he said it' could be your boost pressure control or your turbo control solenoid unit. I phoned a few garages most of them said it needs a diagnostic first cost about £90 worst-case scenario to fix it, about £600 . So I saw UKCC Auto Techs on Facebook. that they clean EGR and turbos so I called them and spoke to Yasir. Told him what happened to me on the motorway and explained what the AA report said. He said he's 99.9% he can solve the problem and that I required a stage 3 clean, what it entails and the cost. The truth, I thought crap, but it was cheaper than £690 so I said ok when can you do it.i will fit you in today at 11.30. Anyway, turns up bang on time had a look at my car explained what he was going to do and what should happen when he did his stuff. so he started by spraying some stuff in my air intake for a while took it for a test drive. what an improvement and I did floor it .So gets back home he Carry's on with what he needed to do telling me all about what this dose and what happens. half hour later he's finished so I took my car out on the motorway opened it up .😁😁👍 wow wow bloody hell. Av got my car back and a bit extra I apologise I take back what I thought. he saved me hundreds of pounds this guy is a professional at what he dose throughout he is also dead friendly tells you all about what he dose I can highly recommend Yasir at UKCC Auto Techs thanks again mate you are star 110%

  • Kassim Mawji AvatarKassim Mawji

    Sent them a request late on Saturday evening, didn't think they would get back to me until the following Monday... but Paul replied really quick, booked it in for this morning! That's what you call efficiency! Had a stage 3 clean today and the car feels much smoother.

    Jay who came to sort the job was polite professional and friendly.

    Top marks all round, great service!

    Stephen Anderson AvatarStephen Anderson

    Top job, fast ,friendly and well priced service. Transit 155bhp now 180bhp plus egr delete. �

  • Tim Jackson AvatarTim Jackson

    James remapped my Astra 1.4T 140 for me today. Car now performs much better. Lots more pull when accelerating. Mid range pull is now great and especially 4th gear. Performace gain is well worth it. Professional service and very accommodating.

    Ian Mainwaring AvatarIan Mainwaring

    Had a stage 2 clean on my Mercedes vito, I got in touch and made a booking on very short notice and dragged him out in the rain on a bank holiday Monday so I really appreciated that �

    He's a very friendly and professional guy, the whole process lasted just over an hour, I went for a test drive and straight away noticed it wanted pull more and felt less sluggish. I wasn't expecting miracles but I'm more than pleased with the results and will defiantly be recommending this to people in the future.so all in all it was a success.

When should the Lambda / 02 Sensor be replaced?

As long as it’s not shortened by other engine malfunctions the average lifespan of an 02 sensor is 80,000 to 90,0000 miles.

Exhaust leaks can damage the sensor probe which can lead to dangerously high temperatures. The probe canse also become contaminated by unburned fuel, if this occurs it is irreversible.
Following a strict servicing routine, including the usual oil changes, spark plugs, air filters etc, is required to ensure maximum life of the sensor.

Signs that your Lambda / O2 Sensor needs to be replaced:

  • The engine starts to stutter or suddenly suffers from reduced performance
  • The check engine management light illuminates

The easiest way to diagnosis a faulty Lambda / 02 sensor is with an OBD (On-Board Diagnostic computer). Unless you have access to an OBD reader and are competent in using one this should be completed by a professional.

Typically garages charge up to £70 for such a diagnostic, alternatively we include a FREE diagnostic with all of our Carbon Cleaning Services starting from just £89.99

Cleaning your Lambda Sensor / O2 Sensor?

There are numerous ways to clean or replace the Lambda Sensor / 02 Sensor with varying prices.

The costliest option is a complete replacement part. Most mechanics will recommend this – Why? It’s generally their only solution. The price of a Lambda / O2 sensor varies on average between £180 and £300. NOTE: Newer vehicles have two sensors and it’s not uncommon that if one has been damaged the other will have been as well

Find out more

If you require further information please contact our team on 01293 769495. Alternatively, click on the following links to view our other engine cleaning services – Carbon Cleaning | DPF  | EGR Valve | Intake Valves | Spark Plugs | Catalytic Converter | Intake Manifold | Turbocharger | Fuel Injectors | Smoky Exhausts

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