it kong the first time then i bought 1 from chop shop for RM100...it lasted me around 8 months and now kong again...anyway, just returned from spare part shop and they said that my so4 single cam vted engine has two KS. 1 on top and 1 bottom. Is this true? I checked at honda service centre last night and thats how i found out that the CEL was due to knock sensor malfunction, but the mech did not say anything about the one on top or below.
BTW, the spare part shop guy quoted me RM 500 for the top one..