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Well she’s finally fixed! Took a long test drive today and it was smooth as silk. I originally gave in and replaced two coils #6 & #7 to no avail. Still had the hard misfire on 7 with pending codes for 6 and random misfire. So I replaced all the coils on bank 2 along with new plugs. The plugs on bank 2 were a little worn being 6 years old with about 50,000 miles on them. They were ashy white (lean I think). Still no luck… 300, 306, 307… Then I checked every cylinder for spark (guess that should have been step one) and used my newly acquired stethoscope to listen to the injectors. Everything seemed fine thus far. I had fuel, fuel pressure and spark. Double checked for manifold leak and nothing. So I decided before I do a leak down and compression test I’d pull the injectors and run them through my homemade pressure cleaner. Some injectors were a little grimy and the lower O rings that insert into the engine were a bit dry and malformed but other than that the spray pattern was good and volume seemed okay. So I replaced the o rings. Before buttoning everything up and admitting defeat I hit up some Land Rover forums. A few guys reported that changing only the coils that threw a misfire code didn’t resolve the issue. They said they ended up having to replace all eight. So that’s what I did and it worked. I’d like to thank everyone for their time to help and for everyone’s concern. jjohnson1, good luck to your son and his Navy career!
I never was able to get my Land Rover program to load the PID’s onto the graph. But I ended up changing out cylinder 6 with a new coil. Still got a misfire for 6 and 7. So knowing 6 is 99.99999% good I swapped 7 with 3. Cleared all the codes and reset my PCM. Drove a bit and got got the same 306, 307 and 300. At least this time the problem didn’t change to the bank I put 7 on. I’m at my wit’s end so if anyone can offer some guidance I’d appreciate it
Okay, I did some research and found where I can monitor live information. It’s hidden very deep in a section of the program nefariously named “DATA LOGGING”. I’ll post results tomorrow. Too cold to sit in the car and screw with the laptop. I just thought I’d share the irony
jjohnson1, it does smell very rich when I start up. Being winter I’ve had the windows rolled up so I didn’t notice until just now when I went out to check
The second set of data was what I collected from JLR SDD which is Land Rovers diagnostic program. It’s run on Windows XP with a DrewTech Mongoose cable interface. The previous data was collected using a Bluetooth OBD2 and the Torque App. I’ve only used the JLR for reflashing. I know it has more capabilities to collect data. But since it’s so complicated Land Rover Tech’s have take a class on it. And there really is no information on how to operate it. It’s geared for a professional garage so there has to be something. Anyway, that should have been a closed loop. I let the car idle for about 5 minutes prior to pulling away. Then I didn’t make it a block before I got the trouble code. Once again, thank you for taking the time to help!
Also when I got home I swapped # 3 and 4 coils with # 5 and 6 so now they’re on a different bank. I drove around a bit but I didn’t get a code yet. My hands were freezing so I didn’t pull the plugs. Tomorrow should be a bit warmer so I’m going to give the plugs another try tomorrow.
I’m going to apologize in advance for all the pictures. I couldn’t figure out how to export the report. Here are the freeze frames for the codes I got on my home this morning after clearing the previous codes. I think this one is for cylinder 4
Also the PCV was changed out about 4 years ago and I give that a spray with carb cleaner when I do the throttle body
I’ve had her for almost 6 years. As is my routine I replaced the plugs when I got her as well as the battery (now on my second). I fully remove and clean the throttle body as well as replace the throttle body gasket every oil change. Knowing that this model has issues associated with the throttle body. Initially I had a stalling problem when I first bought it. So I removed all the injectors and built a pressurized fuel injector cleaner operated by a momentary switch and my compressor. I run 93 Shell ONLY and every couple months I throw a bottle of techron in the tank
I haven’t due to the Chicago cold. But that was my plan since the weather is going to be in the 30’s tomorrow
The JLR SDD is a little different. Being symptom driven software it’s not straight forward as to how I access that information. I was meaning to sit down with it today and try to figure it out but I left it at home and now I’m stuck at the firehouse until tomorrow. Basically the way I’ve been using it is I click on a myriad of symptoms from drop down menus. Then it reads the stored codes and gives you probable options. The misfire codes resulted in a 66% probability of CAMSHAFT POSITION SENSOR BANK 1. I tested it as per the instructions that JLR SDD gave me and it checked out fine.
Also, I’m still learning about fuel trim and O2 sensors. One thing I realized is that all or some of my O2 sensors are heated. Could it be that the heating function is not working? And if so, could that be causing my issues?
Just performed the water spray test as per ScannerDanner with no results. I also tried using another OBD2 APP and only found one freeze frame recorded and it’s the same as I posted which on this app is associated with a misfire on cylinder 4. Since I already have the codes, would it be advisable to clear them and read the next one that pops up which should result in freeze frame data?