So my check engine light came on the other day out of know where so I got it scanned and the evap large leak and 02 sensor slow response and misfire in cylinder #1 code popped up. The next day is kinda started sputtering while I was cruising about 35/40mph and idling a little rough. Today it ran fine no sputtering or idle issue. I’m gonna change the coils and plugs today and scan it again later on. Any ideas what maybe the cause? Thanks guys.

 

change the plugs and swap #1 coil to another non misfiring cylinder. clear the codes. if the misfire follow the coil...replace the one bad coil. if the misfire stays on cylinder 1. do a compression test.
post the actual codes for the 02 and evap. post the model year and engine

 

Well I cleared the two codes that it was throwing and fixed those but now it’s throwing code p0208? I checked resistance in cylinder 8 fuel injector which is what it was saying to check And resistance is good so idk

 

evap dtc can take one week to mature. can't look anything up as I don't know the model year.

 

2002 Dodge Ram 1500 4.7l

 

Inspect all your evap hoses and replace the ones that looked crack.And you may want to put some fuel injector cleaner in the fuel tank to help with clod injectors. If you continue to have an injector code. Replace the injector.

 

All the hoses looked fine, I’m gonna replace the injector today, I noticed that injector connection was loose on it so I fixed the clip and so far it seems little better but code still on

 

Silly question, but did you check your gas cap? If it's open, it'll set an evap code. Newer systems can tell if it's the cap, but older ones just know there's a leak.

 

yes gas cap is fine, no more evap code just code P0208 which is fuel injector failure cylinder 8