Failing emissions test on high CO. No air leaks or other faults found.
The fault was cured by adding Forté Specialist Injector Cleaner and carrying out a 5-10 mile road test.
Emissions were retested, and vehicle passed.
Forté's Technical Helpline receives over 300 calls per month. This blog shares solutions for garage workshops on common driveability concerns that can be quickly and effectively treated. The vast majority of those identified are caused by fuel and oil borne contamination formed by natural degradation or via the combustion process. This is a fact of life for internal combustion engines where fossil fuels and oils are used.
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