While we are on the subject a symptom of lambda failure is a lumpy idle and a miss throughout the rev range remember don't put up with problem it could wreck your engine almost certainly your catalytic converter
A lambda sensor does live in an harsh environment however they are delicate in terms of force or being dropped.
So we were surprised to find an ngk recently fitted that was virtually dead the only explanation was it being dropped
o2 oxygen sensor diagnostics
these components similiar to a spark plug are vital to your engines running
of course the complexity of creating a big fat spark to fire your cylinder and move your car doesnt worry the driver
All petrol engines all use the same way of producing a spark from the very beginning of motoring.
A coil is simply two windings primary and secondary,the primary is switched to produce a very high voltage f
Service histories can be faked and it is all to common so verify they are genuine before committing yourself
Engine running dsiagnostics can be very problematic,if your engine is running ok dont be tempted into just neglecting to have reason why diagnosed and pinned down