1997 LX450 with 78,000 miles with Automatin Transmission.
The temperature has been for 15° F. to 50° F. in the morning. The engine starts fine and goes smoothly to a steady fast idle of 1400 rpm. Within 15 seconds, I back out on a level drive about 60', and proceed foward underlight acceleration to a speed of about 20 mph for a distance of about 1/4 mile. During this time, the miss is very sporatic, lasting less than 1 second, almost as if the engine is running out of fuel, but disappearing almost instantly. When I stop, the engine idles smooth, but not as smooth as when the engine is warm. For the next 1 to 2 miles, the miss is still sporatic and only under mild acceleration. The miss doesn't start as soon as I start acceleration but happens after a 1 or 2 second lag. After 2 miles the engine runs smooth, accelerates smooth, Idles really smooth.
One night I went out for about 5 hours, the outside temperature was about 5° F. The miss was as sporatic, but stronger.
When warmer the miss is milder.
I have replaced the Spark Plugs with Bosch Platinum about 4 months ago. I have recently replaced the Wires, Cap, Rotor, and Fuel Filter. The engine has 78,000 miles and burns less than 1 quart of oil in 2500 miles.
Please feel free to stop by and drive this some morning.
Thanks for your opinions,
Tom
The temperature has been for 15° F. to 50° F. in the morning. The engine starts fine and goes smoothly to a steady fast idle of 1400 rpm. Within 15 seconds, I back out on a level drive about 60', and proceed foward underlight acceleration to a speed of about 20 mph for a distance of about 1/4 mile. During this time, the miss is very sporatic, lasting less than 1 second, almost as if the engine is running out of fuel, but disappearing almost instantly. When I stop, the engine idles smooth, but not as smooth as when the engine is warm. For the next 1 to 2 miles, the miss is still sporatic and only under mild acceleration. The miss doesn't start as soon as I start acceleration but happens after a 1 or 2 second lag. After 2 miles the engine runs smooth, accelerates smooth, Idles really smooth.
One night I went out for about 5 hours, the outside temperature was about 5° F. The miss was as sporatic, but stronger.
When warmer the miss is milder.
I have replaced the Spark Plugs with Bosch Platinum about 4 months ago. I have recently replaced the Wires, Cap, Rotor, and Fuel Filter. The engine has 78,000 miles and burns less than 1 quart of oil in 2500 miles.
Please feel free to stop by and drive this some morning.
Thanks for your opinions,
Tom