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1,108 Posts
Re: HELP!! 8V Died...... (chatterton)

pull a spark plug is it carbon fouled? (black) if it is you are running excessively rich.
unplug the o2 sensor see if that does any justice.
check your ground wires leading onto the drivers side of the valve cover, these are crucial for efficient ECU operation,
Coolant temp sensor?
air intake leak.
i am assuming since the car is an 89 its digifant unless CIS was transplanted in VERY UNLIKELY. good luck lemme know what you find
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