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simple-man
04-05-2010, 01:28 PM
I have a 1990 240sx with a soch ka2400, this weekend my check engine light turned on and a also noticed a knocking sound. After I ran the car for a while the light turned off but the knocking still continues only when the car is cold but after it warms up it stops...anyone have any idea thanks.

jspaeth
04-05-2010, 02:40 PM
Check your oil level first

simple-man
04-05-2010, 10:29 PM
i had just done a tune up...spark plugs & wires, oil filter, air filter, and fuel filter, also i added lucas stabilizer to the engine oil...i have gotten replys of being a knocking sensor, weak oil pump and a lifter.