2015 Jeep Wrangler 3.6L - Fuel Injector Open Circuit Diagnostic DTCs P0306 & P0206

Рет қаралды 2,062

Күн бұрын

This vehicle came in with a pretty severe misfire. DTCs P0306 & P0206 indicating an injector open circuit fault. In this video, I discuss various methods for testing an injector and verifying the circuit integrity. Using a lab scope I show you how to current ramp and voltage test an injector. This nonintrusive method of testing allowed me to verify the the failure part without removing the intake.
Update: After the intake was removed, I was able to further inspect the harness and found no issues. It was the injector that causing the open circuit. Replaced it and the engine ran great!

Пікірлер: 15

@mikemorris7776 3 ай бұрын

Great video, as a Jeep guy it only takes 10min to remove the upper intake and another 5min to remove the injector rail and injectors. Keep up the videos they are informative

@oldbiker9739 11 ай бұрын

your a patient man when it comes to ringing wires to verify cause , we need more trades men like you .

@BigDogDiagnostics 11 ай бұрын

Thanks! I try my best to verify the concerns. It’s difficult sometimes to be patient, but what I learn from every diag makes the next easier!

@ZoomAutoDiag 11 ай бұрын

Nice visual representation for folks that think its just code based diagnostics. Nicely done sir.

@codyhoops1019 6 ай бұрын

Really liked this video. I work in Aviation but my passion is Automotive modification and repair. More on the mods... lol than repair. But I'm no good with electrical. I liked how you didn't have a bunch of start stop edits. It shows how quickly this can be diagnosed, testing all injectors on each bank, with the right equipment. I need to start accumulating the equipment. I currently have these codes on ky 2015 Jeep Grand Cherokee limited 3.6. I have dreaded cylinder 5 and 6... I've had to pull the intake 5 times this year for oil cooler cracked housing, then the cooler failed, then the cheap oil temp sensor failed, then the harness to knock, oil pressure switch, oil temp sensor failed. On top of that, P0420 and P0430, which I actually diagnosed using data on a scan tool and you tube. Fuel trims were lean, constantly. So all that to say, I got my check engine light off for the first time in 2 years.. it lasted 3 days now this. I'm not complaining, I've learn a ton. Thank you for explaining everything you did throughout the video.

@ZoomAutoDiag 11 ай бұрын

Give this man a thumbs up! 👍🏻

@BigDogDiagnostics 11 ай бұрын

Thanks bro! Much appreciated!

@bartscave 11 ай бұрын

Exactly! I don’t know how so many people view these videos and don’t give thumbs up. Thanks for sharing your experience and knowledge.

@BigDogDiagnostics 11 ай бұрын

@@bartscave thank you for watching!

@user-zo1on8cv9y Ай бұрын

Hey man, I could really use your help right now. I’ve got a 3.6l, the same one you’re working on, just in a challenger. After changing the oil filter housing and replacing the spark plugs I’m getting the same codes your customer here is getting. I went back and replaced the fuel injectors and the problem is still persisting. P0306 and p0206. Wont go away. At this point it has to be something electrical right? I would appreciate if you could tell me what wires I would need to be replacing in order to fix this, thanks man.

@christopherneale13 11 ай бұрын

When ive used my 1008c with the hscope app it will not let me record in automotive you know why ive paid for the automotive bit of the app

@BigDogDiagnostics 11 ай бұрын

You should be able to record. Click on the master function. It should allow recording for an extended period. What I was doing was just on the main scope screen. Maybe try adjusting your time base and then zooming in.

@jessemackenzie6516 11 ай бұрын

do you have it set to auto or manual start?