Emissions Diagnostics in Tyne and Wear
An emissions failure is a symptom of something else, and the quickest route to a pass is finding which part of the engine or exhaust is at fault.
Emissions are what comes out of the tailpipe, and they depend on how well the engine burns fuel and how well the exhaust treats what is left. A fault in ignition, fuelling, sensors or the catalyst can push readings up.
At Banks of the Tyne in Hebburn we trace emissions faults methodically. This is a different job from DPF diagnostics, which looks specifically at the diesel filter.
When emissions diagnostics is needed
Most people arrive after an MOT failure, but there are other prompts.
- A failed MOT emissions test for smoke or exhaust gas readings
- Black, blue or white smoke from the exhaust
- A strong fuel smell or rough running
- An engine management light with fuelling or catalyst fault codes
- Poor fuel economy that has crept up
What we check
We start with fault codes and live data, looking at fuel trims, oxygen sensor readings and engine temperature. We check the basics that cause high readings: the air filter, spark plugs on petrol cars, leaks in the intake or exhaust, and the state of the oil.
From there we narrow down to specific components, such as the oxygen sensors, mass airflow sensor, injectors, EGR valve or catalytic converter. We aim to prove which part is at fault before recommending it.
What affects the result
Engine condition and maintenance history matter a lot. A car that has missed services may simply need the basics doing. Cold engines and short journeys can give poor readings, so a test on a fully warmed engine is more reliable.
Sometimes the answer is not a single part. A worn engine burning oil or a failed catalytic converter can be the real cause. We explain the findings and the order we would tackle them in, so you can decide how to proceed.
Getting back to a pass
After repair we recheck the readings so you know the problem is resolved. If a retest is due, ask us about timing, since the rules on retests change, and check the current guidance.
Do not simply clear the codes and hope. The fault will usually return, and the retest will find it again.
In short: Find the cause, fix that, and recheck. Banks of the Tyne in Hebburn will trace your emissions fault so you are not guessing at parts.
Emissions Diagnostics: FAQs
Why did my car fail the emissions test?
Common causes are an engine not burning cleanly, a faulty sensor, a worn catalyst or a leak. Diagnostics tells you which applies to your car.
Will a service fix it?
Sometimes. Worn plugs or a blocked air filter can raise readings. Diagnostics shows whether that is enough or something deeper is wrong.
Is black smoke an emissions issue?
Yes, it usually signals too much fuel or too little air. It is worth having checked promptly.
Do I need to warm the engine first?
A fully warm engine gives more reliable readings. Drive for a reasonable period before the test.
Can you tell me before the test whether it will pass?
We can check readings and find faults that are likely to cause a failure, though the official result is decided at the test.
Part of our exhausts & emissions service
See the full exhausts & emissions page, or choose your area.
- Exhausts & Emissions in Hebburn
- Exhausts & Emissions in Jarrow
- Exhausts & Emissions in South Shields
- Exhausts & Emissions in Boldon
- Exhausts & Emissions in East Boldon
- Exhausts & Emissions in Cleadon
- Exhausts & Emissions in Whitburn
- Exhausts & Emissions in Gateshead
- Exhausts & Emissions in Felling
- Exhausts & Emissions in Pelaw
- Exhausts & Emissions in Heworth
- Exhausts & Emissions in Bill Quay
- Exhausts & Emissions in Wardley
- Exhausts & Emissions in Low Fell
- Exhausts & Emissions in Team Valley
- Exhausts & Emissions in Blaydon
- Exhausts & Emissions in Whickham
- Exhausts & Emissions in Birtley
- Exhausts & Emissions in Newcastle upon Tyne
- Exhausts & Emissions in Byker
- Exhausts & Emissions in Walker
- Exhausts & Emissions in Heaton
- Exhausts & Emissions in Gosforth
- Exhausts & Emissions in Jesmond
- Exhausts & Emissions in Wallsend
- Exhausts & Emissions in North Shields
- Exhausts & Emissions in Tynemouth
- Exhausts & Emissions in Whitley Bay
- Exhausts & Emissions in Sunderland
- Exhausts & Emissions in Washington
Related services
Catalytic Converters
Catalytic converter diagnosis and replacement, finding out why it failed before fitting a new one.
View service →Exhausts & EmissionsDPF Cleaning and Repairs
DPF cleaning and repairs for diesel cars: finding why the filter blocked and what can be done about it.
View service →Exhausts & EmissionsExhaust Repairs
Repairing leaks, damaged joints and loose mountings so a sound exhaust system can stay on the road.
View service →Get a free quote for emissions diagnostics
Tell us what your vehicle needs and we will come back to you. You can also message us on WhatsApp or use the call button.
- Banks of the Tyne Motor Co Ltd
Unit 19a, Prince Consort Road, Hebburn, Tyne and Wear, NE31 1EH