Help, why is my engine knocking?

Discussion in '1994 - 1995 Specific Tech' started by JimTMich, Nov 11, 2003.

  1. Still Knocking

    Well, I set the timing to 10 degrees with the sprout connector removed, engine warm. I ran 87 octane through for 2 tanks and it's knocking like crazy on 0F degree days.

    Haven't got it yet. :shrug: :bang:
  2. did you try replacing the sensors yet? also try using 89 octane...but you should be able to run 87 octane with 10* base line
  3. From what I've found, winter gas is more oxygenated which isn't going to help the pinging at all. Todays 87 is just a step above Propane. Don't run that trash. Don't throw in a whole tank of 93, but just try maybe 1/4 a tank and see if it works first before you fill her up.

  4. I replaced ECT, AIT, and cleaned the Maf.

    I put in 10 gallons of 93 and the knocking went away.

    Do I just have to live with more octane.

    BTW, Over the years I have found that running 93 I get about 20% better mileage. Which pays for the 93 octane. I'll have to keep my eye on it now that I have made changes.