No Arthur, I used the oem copper non-resistor plugs. I forgot to mention that I have replaced the MAS air flow sensor as well. I try to use oem parts at all times. My car does not have ASR; so does code 10 on pin 14 point to faulty rpm TN signal reading? If so, what sensor picks up this info? Thanks.

Bill

__________________
87 560 SL
93 300E 2.8
91 300CE-24