2014 Volkswagen Jetta- P0302 Cyl 2 Misfire (2.0L-Leaky Fuel Inj.)
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- Опубликовано: 15 окт 2016
- 2014 VW Jetta with an extended crank, rich exhaust, and a single cylinder misfire, using a verus pro to analyze secondary ign waveforms (very misleading in this case) and injector control, and using a fuel gauge and simple visual checks to identify a leaky fuel inj.
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Having a wet plug would add to the varying waveforms on secondary, awesome video I'll definitely be tuning in on your channel!!
Thanks Alex for the support I'm glad you enjoyed. I agree too a very fueled up spark plug/cylinder would change my secondary ign waveform. It really looked like a lean misfire. But I've never seen secondary ign with a fueled up cylinder I wonder if that's what it looks like when it's so fueled up.
Excellent problem solving skill
Finally a real mechanic.
keep up the great vids
so glad to subscribe
Good case study you explain it well too good knowledge for everyone
Thank you for the support I'm glad you liked it
Great vid my friend !
Very nice explanation
I cleaned out the throttle body and the light is still and car still shakes. Diagnostic code came out 304. Now what do I do?
How do you disconnect the valve that goes to the firewall for the heater hose
Thank you kindly from the Great White North.
Nice video would have been nice to see more data.
I saw you initially had a injector trace ,but I would have unplugged the injector and plugged in a noid light to be sure the control side of the fuel injector wasn't being grounded continually
2014 jetta s maual trans 2.0 motor is sturering, any idea why?
Does the Glow Plug flashes as well when this occurs?
I need help! My check engine light is on for a code of P2188 but i can not locate the MAF sensor on a 2014 vw jetta 2.0
I have a 1.8 jetta 2005 GLI and it has 2 misfires in cylinder 2 and 4 but there’s no compression
Can someone please tell me where my maf sensor will be on a 2.0 2014 vw jetta. My engine looks just like this and I can’t seem to find it
Good call. Id pull the plug just to be able to visually celebrate. Lol.
Nice work! could easily have goes down the wrong route looking at ecu control.
absolutely
I have a 1999 2.0l none turbo new beetle where is. The pcv valve thanks
what blows your mind is how fast its dumping fuel. You were going to pulse test all 4 right and compare numbers?
At first I thought about it. Because I thought I had a lean misfire but it was opposite. But the rail pressure was leaking down so quickly it made that test irrelevant and almost impossible.
Where is the Mass Airflow sensor located on that vehicle? I have the same engine set up and can’t find it.
This engine uses a speed density system. Meaning it doesn't have a MAF. It uses TPS, MAP, Temp, and other data to fuel the engine with a pre-programmed fuel map.
This engine has been around since the 90's. Great engine, and simple like fuel injection cars were back then.
I had about 74000 miles when I got the random misfire , cylinder 2 and 3 misfire. It ended up being the "distributor" idk what it's called now. My buddy has same vehicle and It was a burnt insulation from a wire where the injector wires are at.
Thankfully it's an easy fix. Mine started going out between Phoenix and Las Vegas. Nearest town where anything could be done was Wikenburg; 60 mi away. Every time it misfired too much it would trigger the EPC light making it impossible to even cruise at a reasonable highway speed so I just kept resetting the computer with my app on the phone. I did heavy throttle downhill to climb big hills and barely touched the gas climbing them. Made it all the way to the 303 and Grand Ave, 23 miles from home before it gave completely. Get the autozone one, lifetime warranty. 200k miles with a 5 speed manual, it's been a great car outside the oil cooler not lasting.
@@AltruisticWarrior AutoZone? That Chiner junk? You'll be swapping that coil out every 12-18 months. Just buy the OEM and be done with it. The OEM coil pack can be found on FCP Euro for under 150.00 if you buy the factory direct Beru one that has the VW name and part number scratched off.
It's a coil pack-ignition module these days.
Hey quick Tom question I have an EVAP LEAK very small leak code and I know its the purge Valve, Ive been breaking my head looking for it and im assuming its in the center but I could be wrong but I dont know how to open the engine cover can you make a video pr perhaps a small guideline on how to open it? or showing where the valve is. Thanks a lot brother
What’s your engine code?
If you have the same engine as the one in this video, the purge valve is clipped to the side of the intake pointing at the coolant tank. You can't miss it. Has two hoses running to it. One that goes into the back of the manifold, and one that comes from the body of the car.
Where are the spark plugs located at on a 2014 Volkswagen Jetta
They are partially underneath the intake manifold. They will have four rubber wires going to them that you will need to pull off if you are replacing them
Can you please tell the location of the MAF sensor. It’s been driving me crazy. I can’t find it..
What engine do you have? It may not have one
@@PositiveLeadDiagnostics hi I have the same car you are working on in this video. 2014 Volkswagen Jetta 2.0 S model. I recently replaced all four spark plugs, and now the car starts a little better, but I still get an EPC light and a flashing engine light as well. I also can’t find the MAF sensor for the life of me. I guess it never had one to begin with.
Injectors are a common problem on these engines. Hopefully customer replaced all four. Outside of that, these engines are great! Albeit, underpowered by today's standards.
Getting a tuner chip and slapping a K&N filter improved the throttle response and stops the car from feeling jumpy during acceleration. I daily both my 2.0 Jetta and 2.5 Altima and they both feel the same.
My car has trouble starting after getting gas. Bad injectors?
Bad purge valve for the charcole canister stuck open when it should be closed.
Can it cause a p0131 (low voltage o2 sensor )
bad o2 sensor need to be remplace
Interesting issue! However, I don't think your lean misfire is being caused by low rail pressure. Did you check the pressure while it's running? The fuel pump can keep up just fine. The lean misfire is most likely caused by the fuel trims being pegged negative as a result of the raw gas being dumped into the exhaust stream. Would be curious to see the fuel trims too. Great vids!
Oh and if the injector shuts off due to the misfire, but is still spraying some fuel due to the pintle not seating, that could very well cause a lean burn pattern on cyl 2 as well...just brainstorming :)
The thing is that my misfire on cyl2 was never lean. The fuel inj was dumping fuel all the time because it was stuck open. Even after the computer shut off control. Any pressure in the rail was always relieved through cyl 2 inj. I wish I could have looked at a few more data pids to gather information but this thing was dumping so much fuel. Now I wonder is that what secondary ign looks like with a mixture that is just way to rich. In this case because it was dumping fuel all the time Does too much fuel give the same effect as not enough? I'm not sure because I've never seen secondary ign with a cyl that has way to much fuel like this. Thanks for your support and input on this channel. I'm glad you enjoy the videos.
That was my thinking Ivan
i saw a scannerdanner vid, when he disabled the spark(to create a misfire)..raw fuel was dumped into the exhaust..and guess what? fuel trim didnt go negative after that..he said raw is not rich..raw is about HC..rich is about CO and lack of O2
My 14 Jetta is having the same problem. It’s been jerking and now it completely shut off on me at a red light with check engine light on. Error codes I received are cylinder 1 4 and 2 misfire and random misfire. I don’t know crap about cars but after watching this gonna check fuel injector. Thank you.
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Got a 2014 2.0 jetta. I need to replace the pcv valve. Apparently it's under the valve cover. Every video I see is a different engine 2.0 type. They are all about replacing a oil seperator valve on top of the engine
My engine looks exactly like the one in this video
How much is a fair price for labor and parts to fix this? My local Volkswagen dealer wants to charge me $1100+ for this.
Damn bruh might as well get a new car after that
The problem is the fuel injectors are almost 300 each, and it is highly recommended to replace all 4. Fuel injectors were always problematic on these engines. Good chance they want you to replace all of them in one shot. To save you labor. And diminish the chances of a comeback. I work on these for a living, and that's exactly how I would present the repair to you. Every time one of these injectors fail. The entire labor has to be repeated for each injector. Just wiser to pay labor once and do all four.
@@CaptainRealm ? Have you looked at the car market recently? 1100 bucks is chump change on a vehicle that is paid off.
@@LynxStarAuto Thanks for responding Grabriel. I know its been a while since I posted this but I actually was able to fix my car back in January of this year. It turns out my problem wasn't the fuel injectors which I suspected them to be also. My problem was a hole in the carbon canister which was causing the evap leak. I also had a very dirty throttle body which was causing the car to stutter. It's been almost 6 months since I got it fixed and no more check engine light or stutter! With 105k miles my Jetta runs like new. I'm glad I only paid about $600 total over the course of a year trying to figure out what it was. Found a good honest mechanic who was able to get it done for a really decent price.
@@Agownsrs2 That's good to hear. These engines are bulletproof and have been around since the 90's. It's very important to find a guy that is honest, but more importantly understands these vehicles. I got my start at a VW dealer back in 2002. Worked there for almost 8 years before I went independent. I always tell everyone. Guys like us are a necessary evil in the auto industry. These cars just require a different approach, tooling, and equipment. Not every guy out there is cut out for them, and that's ok.
Cylinder 2 is on left side Middle
I have original numbered wires and that's where cylinder 2 is second on left side
Problems car. Transmission very bad. 0..
Loll you charge by the hour and you talk that much during the work for something that you obvisouly found early in the diagnostic that you proceeded.
Nice video tho
Not sure what you mean but ok
Positive Lead Diagnostics you talk more than work lol, a 4 hr job becomes 6hrs for the paying customer !!!🤷🏾♂️