Hello,
I just picked up a '99 DII bone stock but loaded with everything, and I'm fairly new to Land Rovers (I owned a '95 DI for a short while), and I'm definately new to ODB II and reading/interpreting codes.
Anyway, the Service Engine Soon light was on when I bought this DII last weekend. I got the codes today after visiting Checker Auto Parts (they let you borrow their code reader and get the codes yourself). The first time I checked the codes, it was P0300, P0305, and PO306. I cleared the codes, restarted the engine and the SES light did not come back on. But after about a minute, the exhaust started clanking a bit back by the driver rear tire, I got out of the vehicle, put my foot on the tailpipe, the clank went away, and by the time I got back to the cab the clanking went away on its own but the SES light was on. I'm convinced the clanking had something to do with it, but I don't know if there is an exhaust leak/crack causing a clank or other problems possibly causing these codes, or if it's not even possible for an exhaust problem to cause these codes. So then I was thinking that the clanking was just another symptom of the engine running a little rough despite the fact I couldn't tell a difference in how it ran. This time I just left the codes and waited until later in the day to check them again at a second Checker on my way home. I got the same codes, cleared them, and after 10 miles of driving they didn't come back (nor did I hear any more clanking).
I know that P0300 means random misfire, P0305 means cylinder 5, and P306 means cylinder 6. What I don't know is what this actually translates into to pinpoint the problem. I read some previous threads and they basically said anything from plugs, wires, distributor packs, to slipped sleeves in the cylinder (I don't know what that is). The previous posts seemed to have a bunch of other codes at the same time, so my case seems to be a bit simpler.
The engine runs very smooth, has good power (more than my DI 3.9), I got 15MPG on my first tank of gas at 87 octane and combo city/highway driving, which surprised the heck out of me since my DI got 13.5 at best. Dealer service was done at all regular intervals by the previous owner up until 67,000 miles which was the last one. The previous owner said the only problems it's had were a couple leaks and a bad alternator. It now has 102,000 miles. I have no idea when the plugs/wires were replaced.
I was hoping to get more specific info on these 3 codes and how they could relate to my DII despite the lack of symptoms (besides a short-lived exhaust clanking).
Thanks!
mnwolftrack
I just picked up a '99 DII bone stock but loaded with everything, and I'm fairly new to Land Rovers (I owned a '95 DI for a short while), and I'm definately new to ODB II and reading/interpreting codes.
Anyway, the Service Engine Soon light was on when I bought this DII last weekend. I got the codes today after visiting Checker Auto Parts (they let you borrow their code reader and get the codes yourself). The first time I checked the codes, it was P0300, P0305, and PO306. I cleared the codes, restarted the engine and the SES light did not come back on. But after about a minute, the exhaust started clanking a bit back by the driver rear tire, I got out of the vehicle, put my foot on the tailpipe, the clank went away, and by the time I got back to the cab the clanking went away on its own but the SES light was on. I'm convinced the clanking had something to do with it, but I don't know if there is an exhaust leak/crack causing a clank or other problems possibly causing these codes, or if it's not even possible for an exhaust problem to cause these codes. So then I was thinking that the clanking was just another symptom of the engine running a little rough despite the fact I couldn't tell a difference in how it ran. This time I just left the codes and waited until later in the day to check them again at a second Checker on my way home. I got the same codes, cleared them, and after 10 miles of driving they didn't come back (nor did I hear any more clanking).
I know that P0300 means random misfire, P0305 means cylinder 5, and P306 means cylinder 6. What I don't know is what this actually translates into to pinpoint the problem. I read some previous threads and they basically said anything from plugs, wires, distributor packs, to slipped sleeves in the cylinder (I don't know what that is). The previous posts seemed to have a bunch of other codes at the same time, so my case seems to be a bit simpler.
The engine runs very smooth, has good power (more than my DI 3.9), I got 15MPG on my first tank of gas at 87 octane and combo city/highway driving, which surprised the heck out of me since my DI got 13.5 at best. Dealer service was done at all regular intervals by the previous owner up until 67,000 miles which was the last one. The previous owner said the only problems it's had were a couple leaks and a bad alternator. It now has 102,000 miles. I have no idea when the plugs/wires were replaced.
I was hoping to get more specific info on these 3 codes and how they could relate to my DII despite the lack of symptoms (besides a short-lived exhaust clanking).
Thanks!
mnwolftrack