WS7 Exhaust Gas Analysis

In the AIR

CO: 0%
HC: 0 ppm
CO2: 0.033%
O2: 21%

Start the engine measure when engine is cold.
CO: 0.07%
HC: 129 ppm
CO2: 15.11 %
O2: 0.33%

With the engine warming up
CO: 0.5%
HC: 100 ppm
CO2: 14.3%
O2: 0.48%

With engine at 2500 rpm
CO: 0.01%
HC: 17ppm
CO2: 15.18%
O2: 0.38%

Run the engine rich with propane and measure the results
CO: .011%
HC: 5 ppm
CO2: 15.16%
O2: 0.08

Make a vacuum leak and record the engine while running lean
CO: .004%
HC: 10ppm
CO2: 14.57
O2: 1.12%

The Lambda value was 1.053

Record the readings when accelerating.
CO: 0.039%
HC: 6ppm
CO2: 14.8%
O2: 0.52%

We were unable to complete experiment as power died.