The UK regulator, the Vehicle Certification Agency, will work with car makers to re-run lab tests where necessary.
It will then compare the results against "real-world" driving emissions.
Meanwhile the EU has also said that there should be a Europe-wide investigation into emissions testing.
UK Transport Secretary Patrick McLoughlin said: "The Vehicle Certification Agency, the UK regulator, is working with vehicle manufacturers to ensure that this issue is not industry wide.
"As part of this work they will re-run laboratory tests where necessary and compare them against real world driving emissions."
"My priority is to protect the public as we go through the process of investigating what went wrong and what we can do to stop it happening again in the future."
Separately, the European Commission said in a statement: "We invite all member states - in addition to the ones who are already doing so - to carry out all the necessary investigations.
"We need to have the full picture of whether and how many vehicles certified in the EU were fitted with defeat devices, which is banned by EU law."
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