So I just bought a 2000 D2. It has 188,000 on the chassis and about 90k on the motor (the owner had the motor replaced with a used one about a year ago). She does have a few codes but I went into it knowing I needed to do some work. There is definitely a missfire issue but I was able to drive it 40 miles home and the previous owner drove it 70 miles a day. They said this misfire issue started 2 weeks ago. His mechanic says it needs to coils. Here are the codes.

P0154
P1590
P0134
P0300
P0306 X2
P0301 X2
P0302 X2
P0303
P1300

I also know that the owner used only 87 octane since he had the engine replaced 1.5 years ago. On my way home I put in 93. I know that most are misfire related and I'm sure the two o2 sensor codes are due to the misfire too. I would love to hear the expertise of anyone.

My first plan of action is to throw in some cheap plugs to see if that fixes any of the codes, next I'll replace the wires and if that does not work, then the coils. What is strange to me is that the previous owner told me this came out of the blue a couple of weeks ago. You would think that a failing plug or wire would only happen one at a time, meaning one misfiring cylinder at a time, not three. If it was a failing coil then why would both coils go at the same time, these cylinders do not connect to the same coil?
I am curretly doing research but from what I gather, I need magnecor 8mm wires, +4 plugs and change all fluids. Any advice on what parts and fluids to get would be greatly appreciated. Thanks for the help and I am happy to be part of the community.

 

P1300 Random/multiple cylinder misfire detected

The P301-8 codes are misfires for cyl 1-8. P300 is multiple misfires.


P0154
O2 sensor circuit no activity detected (bank 2,sensor 1)

P0134

O2 sensor circuit no activity detected (bank 1,
sensor 1)
Front sensor LH bank open circuit

P1590 ABS rough road signal circuit malfunction


Good luck.
You will need to download the Rave Manual for Land rovers. Lots of links on this forum.

 

Anything after 0300 and up to 0308 is a miss fire starting at 0301 is miss fire on cylinder 1 and so on up to 0308 which would be a miss fire on cylinder 8
Toad 2 is right you need to download the rave manual it will help out a lot.

Sounds like a good place to start would be new 02 sensors and plugs and wires.
I'm in the same boat wit 0300and0306

Did you get service records with the truck?

 

I posted in your other thread - front o2 sensors and I think MAF sensor causing the misfires.

And please don't start multiple threads.

 

I will clean the maf but aren't there maf specific codes?

 

I bet the misfire is causing the o2 sensors to throw an inefficiency code due to the abundance of unburned fuel. I feel like the o2 codes are not the root of the problem, just the effect.

 

Links below to a variety of manuals. There are some codes for the MAF, and there are some things a dirty MAF can do that make truck run bad. Clean only when stone cold, with made for MAF cleaner, be sure you do not put key in ignition before cleaning, it heats part of the sensor up to 350 degrees above ambient, so a squirt of cold cleaner can fracture it.

 

I do have maf specific cleaner, thank you do much for the heads up on making sure it is cold, I'll try that first in the morning. The previous owner did show me an air intake tube he had to get replaced. Maybe that tube when broken allowed the maf to get dirty. Just thinking out loud now.

 

Put those codes into http://enginecodemaster.com

one at a time

like P0104 or such.

Most of the RAVE codes are in there now.

 

I cleaned the maf and tried a used one that I had laying around. No difference. I cleared the codes and went for a drive. I plugged my scanner in and basically the same codes came back except that I didn't get a misfire 3. The o2 codes move over to pending. I did get a misfire in cylinder 1,2 and 6. I cleared those codes, tried the used maf I had laying around, went for a test drive and read the codes. They were the same except for no cylinder 2 misfire which leads me to believe I have an intermittent failure of the ignition system. Signs are starting to show coil issues.