Quote:
Originally Posted by AndrewCologne
0438 140 089 = ROW SC (with vent connection)
0438 140 072 = US SC (no vent connection) / Engine with lambda control
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Andrew,
Both WUR-072 and WUR-089 have
vent connections. WUR-072 is non-vacuum assisted and for lambda/OXS motors while WUR-089 is a vacuum assisted and for non-lambda/OXS motors. Another difference between these 2 WUR’s is the heater configuration. WUR-072 has a compound heater set-up while WUR-089 has a single heater. And they operate differently. FYI.
Tony