Thread: 89 260E Fails CA Smog Test
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Old 08-16-2005, 02:14 AM
stevenstevensteven's Avatar
stevenstevensteven stevenstevensteven is offline
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Join Date: May 2001
Location: NE Florida
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"NOx is produced when the combustion temperature is high. You might just pass if you short the aux fan switch for constant operation."

Moneypit SEL, are you suggesting that I short the aux fan so it is always on? I have noticed for some time that the engine operates at high temperatures. I believe I have a leak or something else that has caused a pressure loss in the cooling system and have not had time to diagnose it. Do you think this high temp operating condition could cause the higher NOx?
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1989 260E (276K miles)
1995 E320 (50K miles)
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