Should I swamp back to my old plugs? I don't recall which Bosch plugs they were, but they were a FR7 somthing and had a green stripe. Is there anything reason a change would cause this? Also I used anti-sieze, is this a problem for conductivity?
Go with the OE F7 LDCR and you should not have this problem. My car seems to to like the OE Bosch and this was apparent when I removed the 8K mile NGK's. They read good, but they just don't seem to fire as good as the OE Bosch. Also, I would not recommend using anti-sieze on the plug threads - just use a little bit of regular motor oil.
Also, did you torque the plugs to spec?
Thanks for the info, I'll swap my old ones back in. I torqued them to 21 FT/LBS and unfortunately used anti-seize. Is there a good way to remove the anti-seize?
They make conductive anti-sieze for applications like spark plugs and the resistor boots (stops them from sticking on plugs).
----Dave----
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