Before I swap 2 and 3 plugs, I am going to take the car for a short drive, make sure it is at op temp and get a second reading of the plugs. I have been running straight D2 for the last few tanks, so the fuel should not be in question at this point. No additives have been put in the tank, either.
I am using a multimeter that cost me about $40. It's not the cheapie from HF but I have one I will use as a cross reference.
__________________
1991 F250 super-cab 7.3 IDI. (rebuilt by me) Banks Sidewinder turbo, hydroboost brakes, new IP and injectors.
2003 S430 - 107K
1983 300SD - Tanoshii - mostly restored ~400K+.
1983 300SD - Good interior. Engine finally tamed ~250K.
Monark Nozzle Install Video - http://tinyurl.com/ptd2tge
|