TESTING AND ADJUSTING MEASURING EXHAUST GAS COLOR 7) Accelerate the engine suddenly or run it at high idling and press the accelerator pedal of smoke meter A2 and collect the exhaust gas into the filter paper. 8) Place the contaminated filter paper on the clean filter paper (at least 10 sheets) in the filter paper holder and read the indicated value. 9) After finishing measurement, remove the measuring instrument and return the removed parts. 20-106 PC130-7 (1)