I have been noticing a bad misfire for about the past week and replaced the plug wires and O2 sensor this week. The cap/rotor/plugs are all 1 month old.

After replacing the wires and O2, I noticed that it was still missing so I took the next step which was to check injector resistance.

Here are my findings:

#1 - 18.0
#2 - 17.3
#3 - 17.9
#4 - 17.5
#5 - 18.5
#6 - 17.4
#7 - 0.66
#8 - 17.5

After seeing the ohm reading for injector 7, I took a look at the plugs that I pulled from the car last month when I replaced them and compared all 8 plugs. The plug that came out of the #7 cylinder is the only one that looked any different from the rest. It has a white color to it which leads me to believe that that specific cylinder has been running lean.

Question is, should I replace the injectors and get an AFPR. My current thoughts are to order a set of 24# SVO injectors and the BBK AFPR. What do you guys think about this?

TIA,
John

 

I would definitely change the injector on #7. As far as changing all the injectors to a larger size and putting a AFPR on is up to your preference. Just a thought!!!!!!!!