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Old 04-23-2003, 09:02 PM
400E 400E is offline
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Join Date: Jun 2001
Location: Omaha, NE
Posts: 962
The small thing in the left side air tube is the ambient air temperature sensor.

On our M119 engines, I believe the air mass sensor is actually in the throttle body. If you take off the air cleaner you'll see a thin platinum wire in the throttle bore which is the air sensor.

Have you tried some Techron and a good old fashioned Italian tune up?
'93 400E
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