Disconnect the battery of the car, remove the cables and boot covers, and remove the old spark plugs. Put in the new spark plugs, replace the cables and boot covers, and connect the battery.
ngk plugs are .31 to .35
between .28 - .31" for any kind of spark plug you decide to use in your Phazer.
The gap for NGK-R CR9E PLUGS 31-35
service manual says .31 to.35 for ngk plugs.
I have a 1990 Lumina Euro, 3.1 and there are 2 ways to change the plugs and wires. The first is what some mechanics do, by rotating the engine forward and blocking it that way while they change the plugs, which is the way they changed mine the other day. The other way, is the way I change them, which is to remove the alternator and then you can get to the back plugs fairly easily without having to go through the hassle of rotating the engine forward. I prefer this way myself and I usually chane my own plugs, but I had to have some other work done on mine so I let them change the plugs and wires since I need it worked on while I was working. The front plugs and wires are easy to get to. Use sparkplug pliers to get the wires off the plugs. Hope this helps.
Spark plug setting should be at .31
.31 to .36
.28 to. 31
.24 to .31
Check out Amazon.
Make sure that the wires are correctly routed, plugs are good and fuel injectors are correct resistance and working.
31 gap according to my 1991 corolla manual.32 or 31