Seattle GST
15+ Year Contributor
- 184
- 1
- Mar 11, 2004
-
Seattle,
Washington
I have posted all mods to date in my profile, and I have been running NGK's one band colder than OEM. I have had runner number 3 foul 2 plugs in the last year, and while getting a new Master Cylinder the Mitsu tech informed me that the OEM plugs would be better both in performance and apparently he told me that the colder plug does not fit properly? I am baffled by his last statement as I compared a 7 and 6 while at home and by my viewing, they look identicle in size/fit.
Should I switch back to OEM temp, or should I continue to run the colder plug.
I do get a single backfire when easing off the gas in 3rd gear. It happens on the same downhill sweeping right that I take every morning, if i keep on the go fast pedal it will not backfire, but if i lay off (to be within the speed laws in that area) then i backfire.
Should I switch back to OEM temp, or should I continue to run the colder plug.
I do get a single backfire when easing off the gas in 3rd gear. It happens on the same downhill sweeping right that I take every morning, if i keep on the go fast pedal it will not backfire, but if i lay off (to be within the speed laws in that area) then i backfire.