This is my first post, and would like some help from the forum. I have 105k on my 06 LR3 so I decided to change the spark plugs (something I have done on other vehicles with no problem). The truck was rough idling slightly upon startup and when stopped, so I hoped this might help.
I purchased the oem plugs from auto zone and torqued them in to the 18lbs recommended by the Rave guide. It said to torque the coil screws to 4lbs but my wrench didn't go that low, so I tightened them with a normal wrench.
After install the truck now idles way rougher than before! It jumps from 500-1000 rpms back and forth and now I have the "Reduced Engine Perfomance" notification. Ironically, when I drive it for a few it idles perfectly (even though the reduced engine performance still is present).
I have double checked all connections and everything is correct. Could it be a bad plug? I didn't check gap settings as I was told the plugs come with factory gap already set. Can the error message be read by an OBD tool from the local parts store? or does it require a specialized tool?
Thanks in advance!
I purchased the oem plugs from auto zone and torqued them in to the 18lbs recommended by the Rave guide. It said to torque the coil screws to 4lbs but my wrench didn't go that low, so I tightened them with a normal wrench.
After install the truck now idles way rougher than before! It jumps from 500-1000 rpms back and forth and now I have the "Reduced Engine Perfomance" notification. Ironically, when I drive it for a few it idles perfectly (even though the reduced engine performance still is present).
I have double checked all connections and everything is correct. Could it be a bad plug? I didn't check gap settings as I was told the plugs come with factory gap already set. Can the error message be read by an OBD tool from the local parts store? or does it require a specialized tool?
Thanks in advance!
