Passat L4-1984cc 2.0L DOHC (9A) (1990)
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Display should be as shown above, displayed alternately
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Select 1
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press 0 then 2
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press 0
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read display to determine EPROM level
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refer to chart below to determine correct part numbers and EPROM level
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repeat for Engine Electronics O1 to determine correct fuel system management control module (ECU)
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vehicles with manual transmission can use the following fuel system management control modules (ECU's)
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California 8A0 907 404 BA or EA
