Sentra Wagon FWD L4-1597cc 1.6L SOHC (E16i) (1988)
Air/Fuel Mixture: Testing and Inspection
PREPARATION
1. Make sure that the following parts are in good order.
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Battery
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Ignition system
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Engine oil and coolant levels
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Fuses
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E.C.C.S. harness connectors
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Vacuum hoses
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Air intake system
(oil filler cap, oil level gauge, etc.)
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Fuel pressure
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A.I.V. hose
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Engine compression
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E.G.R. valve operation
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Throttle valve
2. On air conditioner equipped models, checks should be carried out while the air conditioner is "OFF".
3. When measuring "CO" percentage, insert probe more than 40cm (15.7 in) into tail pipe.
Overall Inspection Procedure