Sir, I have Nissan Sunny 1.0 LX, 1986 with E10 type engine and have done 150,000 KM. It was ok with traditional spark plugs, and the Co was within normal range. The trouble started when I put BOSCH Platinum 2 spark plugs. The plugs become black with carbon, before it was brown. On analyser test, it is ok at idle state, but the Co jumps to above 12 when RPM increases, and the fuel consumption is also incresased. One said it is the Platinum 2 spark pluge, as it needs more air to burn the more fuel which cannot be provided by the original intake.
What is your opinion.
What is your opinion.
Mar 5, 2007 at 7:24 AM