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2002 civic si idle fluckuation ...


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Can anyone isolate the problem ...

Bubble in the lower radiator hose ...?

Vacume leak?

Idle control valve ...?


Other 02 si's are having this issue ... anyone know the answer ... ???

the car has 142,000 miles ...


really baffled .....


Please help with the real answer .... Thanks in Advance !

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1. valve adjustment (don't touch unless you know what your doing)


2. oxygen sensor (not too bad but the 4 wire o2 sensor is rediculoualy priced)




4. vacuum leak (can be checked by covering the air intake with rubber)

let me know how it goes bud.


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