I have a jdm b16 sir 2. when we dropped the motor in we used 87 octane without knowing it was the wrong rating. I pulled the plugs to chang them a day before draining the fuel. I'm usin shell v power now and pulled my plugs a few weeks later. The tip part is white but the base is black. Would running my car a day before draining the fuel make my plugs white and stay white? We ran my car and it shoots out a very small amount of white, which people have told me means head gasket(which it isnt) or runing extremely lean. I'm running a jdm p30 ecu. What else could be making me run lean. After going to 93, my gas milage has gotten bad also. I know my o2 sensor is bad but I've always been told that it would cause me to run rich. Any suggestions would help. I am scared to detonate my block. Help!!!!!!!!!!!! Any help would be apreciated.

 

i seriously doubt 87 octane would cause so many problems in a car....bump to help this guy out

 

bump! help me.

 

any help would be apreciated.i'm scared to drive my car now.

 

a bad o2 can cause you to run lean too?

 

yes, a bad o2 can make you run lean too. use a multimeter and check the o2 output while you are driving to see what it thinks your car is doing. don't drive so hard right now, you can damage parts.

 

thanks. bump for more advice?