Engine misfire code, help!
#1
Engine misfire code, help!
Ive been getting a p0305 misfire code for awhile now, but it started as a p0307 and once its given me a p0300 code. Ive swapped the COPs around, injectors, plugs (brand new, .045 gap). Ive even changed out the driver side upstream o2 sensor since thats the bank thats been giving me all the issues. So far it seems to be cylinder 5 thats throwing the code the most, its the only one for about 2 weeks now that has. Ive used a noid light to check the circut, spark tester to test the coil, compression is at 150 on all cylinders. There is no water in the plug wells, plugs look normal for only having a few k miles on em. Im at a total loss as to what to try next. Truck is a 2009 FX4 SCrew with 115000k miles on it. Any ideas would be appreciated, thank you
Kyle
Kyle
#2
I am having a similar issue at 174xxx miles.
Im going to be replacing the injectors this weekend as well as the O2 sensors. the plugs and coils were replaced about 1000 miles ago to try to remedy the issue. Hopefully someone may have a good solution for us.