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Jeremy Herridge (Yeti)
| | Posted on Friday, August 02, 2002 - 12:53 pm: | 
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I am a happy new owner of a 1996 Disco and a recent convert from a Toyota Landcruiser. I love my disco and the performance and ride are far superior to my 88 Landcrusier. The disco runs like a champ with 83,000 miles on it. My question is this: Recently after day of offroading my check engine light came on. After hearing on the radio, I took my disco to AUTOZONE for a free diagnostic check *this service is awsome and will keep me coming back to AutoZone in the future*. The reading gave me the codes P0130 and P0150, oxygen sensor failure. The light was reset and I was on my way. I am wondering if this light comes on, regardless at 82,500; for the scheduled routine maintance of changing them out or is this a real fault? Since my disco is still running great I will continue to drive it until the light comes back on. If it does then I will go ahead and change the sensors out. So when it comes down to this, where is the best place to buy them (ones that plug right in and require no mods). Who is the this Nathan o2 sensor guy? Thanks for any help. Discoweb Rocks!!!!! |
Robbie (Robbie)
| | Posted on Friday, August 02, 2002 - 01:03 pm: |
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Hi Jeremy,
The check engine (amber) light comes on when it senses a fault in the system, not based on mileage whatsoever. There is also another light, Service Engine (red) light that comes on when certain mileages are reached. One of those mileages is 82,500 when you are supposed to have an emissions check done, which usually ends up with changing out your O2 sensors. So you might really have a fault with your sensors since you are about at their predicted life expectancy. Nathan is at http://www.discountrovers.com. a great guy and reource with great prices. |
Paul T. Schram (Paulschram)
| | Posted on Friday, August 02, 2002 - 01:08 pm: |
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Jeremy:
If it threw a code of failure, it might indicate that they are indeed dead. It might be interesting to see if the same code is thrown again after a few start/stop cycles.
That said, Oxygen sensors will not keep your vehicle from running, just running well. you may experience poorer performance both in horsepower and fuel economy.
Again, you might have had this code thrown due to slow engine speed, heavy loading of the engine and other conditions you encountered while off-road, compared to highway driving.
Consider yourself fortunate that you have the '96 with OBDII. My '95 only has the cheesy box beneath the seat (and dealer-only Testbook).
Nathan Crabtree runs Discount Rovers (www.discountrovers.com). His phone number is 502-396-7274.
If my experiences are anything to go by, he will take great care of you! |
Jeremy Herridge (Yeti)
| | Posted on Friday, August 02, 2002 - 02:32 pm: |
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Thanks for all of the input! I will have to watch for any of the physical symptoms of dead O2 sensors. Could a very dirty, I mean black and not changed for 20,000 miles, have any effect? |
Kingfish (Kingfish)
| | Posted on Friday, August 02, 2002 - 04:53 pm: |
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Paul T, what the heck are you talking about? The cheesy box under the seat tells you the fault code. Check the net for what the fault codes mean. I keep a copy of them in my owners manual (along with ABS codes) so I can diagnose my CE or ABS light on the spot. VERY convenient! |
Paul T. Schram (Paulschram)
| | Posted on Saturday, August 03, 2002 - 08:01 pm: |
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Kingfish:
From his statement that he'd taken the vehicle to Autozone and had the codes read, I assumed that he was referring to an OBDII vehicle, and that it required an external reader.
Oops!
FWIW, I've only once successfully read a code from the box under the passenger seat! And, as for ABS codes, that's a lost cause. |
Jeremy Herridge (Yeti)
| | Posted on Sunday, August 04, 2002 - 02:11 pm: |
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Just a follow up! I went off roading in Mineral Basin, Utah yesterday and really pushed the engine on the Rover hard. And guess what, the light stayed off. Maybe it was just Lucas, knock on wood! I am sure the new air filter had to have helped, but we will have see. |
JRoc
| | Posted on Sunday, August 04, 2002 - 10:28 pm: |
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Hey guys
I just replaced one of my cats this weekend because it had crapped out. Upon checking info about cats I learned a little more about them than I knew. One of the things I read said that the cats go for a reason, not just on there own, and that I should try and find out why they went and not just replace them. One of the things they stated that can make a cat go is bad O2 sensors. I checked the dealer (I'm the second owner) and found out that my O2 sensors have never been changed. I have a '95 with 112000 miles on it. I had wondered if they were bad or not because my gas milage was horrendous! I didn't know how bad the gas milage was suppost to be so I took it as normal. Anyway, I'm ordering O2 sensors tomorrow and just thought if I can save someone the trouble of having to replace his/her cat prematurely it'd be worth all this typing! LOL
Good luck and happy wheeling.
I hope to meet some of you guys next weekend at Killington, I'm in a white '95 disco w/New York plates. Some people say I look intimidating but I'm not a violent person (anymore) so don't be afraid! LOL See ya there! And for the record I have one of those shitty boxes underneath my passenger seat and I love it!!! LOL |
Markd1x2 (Markd1x2)
| | Posted on Tuesday, August 06, 2002 - 04:54 pm: |
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Went to AutoZone and got the free OBD-II reading for the "Check Engine" light on my wife's '99 D1.
It read as P1193 which AutoZone's database said was "EGR Drive Overcurrent"... but they could not tell me what the remedy was.
I called Richmond (VA) LR and gave them the code #. They said it was one or more of the O2 sensors downstream of ( behind ) the Cat. With less than 32K on her vehicle, the dealer said it should be under warranty.. so we'll drive the 1.5 hours each way to get it fixed at the dealer.
Some other info that the LR folks gave me was that the problem "might" be related to the electric O2 heater going overcurrent. They also said that there probably wouldn't even be a performance loss due to this CE error.
One of the issues I have is with the seeming disparity between the AutoZone translation of the code and the LR explanation. I would warn others to call the dealer to verify. And a minor issue ... when I called the dealer I had to get a callback while the person I contacted got "educated" on the error code.... whatever that means. Then when I made the appointment with the service dept. it was if I had not spoken to anyone else at the dealership... they did not pass on the issue and I had to repeat most of what I had told the previous person (Jerrod). Next Tues (8-13) we will find out whether or not the fix is "in".
Mark |
Ramsay (3toedsloth)
| | Posted on Wednesday, August 07, 2002 - 08:56 am: |
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Mark,
That's weird. I always get great service at the dealer... Wait, no I don't. Sorry about that. Have a good day.
JR |
Kingfish (Kingfish)
| | Posted on Wednesday, August 07, 2002 - 10:35 am: |
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JROC, what kind of mileage were you considering as "bad"? I also have a 95, but I have 129k miles and the same O2 sensors. |
Paul T. Schram (Paulschram)
| | Posted on Wednesday, August 07, 2002 - 11:37 am: |
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Kingfish:
Do the OBDII cars have the black box beneath the seat? I don't think so. I just contacted a friend with a '96 and GEMS and he seems to think that his truck doesn't have the readout box that yours and mine has.
May seems as though the guys without the box got shafted, but they can use the generic readers, whereas, we are slaves to testbook or the generic equivalents that we all know cost more than our Rovers.
Consequently, it looks as though he may have to go to Autozone to have the codes read.
Paul |
Kingfish (Kingfish)
| | Posted on Wednesday, August 07, 2002 - 12:04 pm: |
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Paul, maybe I'm missing something, but the black box under our OBDI car seats tell us what the OBDII people have to use a reader to decode. I don't understand what check engine light testbook we (OBDI) are slaves too. When the check engine light activates, the black box displays a code. That code can be read from all kinds of sources (posted all over the net). It takes seconds to find out why the CE light has been triggered. Can you further explain what "testbook" you are talking about? |
Paul T. Schram (Paulschram)
| | Posted on Wednesday, August 07, 2002 - 01:16 pm: |
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The testbook is the factory/dealer diagnostic unit that gives further information and the ability to reset lights such as ABS and SRS directly, read outputs of sensors in realtime, etc. Rovacom and autologic are aftermarket equivalents that new cost about $10K.
If I had an OBDII truck, I might be able to reset both my ABS and SRS lights, and could use a generic code reader to read real-time sensor output.
What I was trying to comment on was that on the '96 truck that started this thread, he lacks the box with the readout, thus necessitating his needing to take it to have the codes read. |
Markd1x2 (Markd1x2)
| | Posted on Tuesday, August 13, 2002 - 08:37 pm: |
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Great Service from the Richmond LR dealer.
Took the wife's '99 D1 in today to get the 1193 EC error fixed. They said the O2 sensor near the cat was "bent". Since my wife has never driven her D1 offroad, something on the highway must have hit it. They had it fixed in about and hour.
The LR service tech also fixed the leaking washer fluid reservoir ( new check valve ) and fixed the severe high speed ( >70mph) front end shimmy by balancing the front tires. What did it all cost.... absolutely nothing ! ..... except for the gas and time to drive the 4 hour round trip. Kathleen and I are satisfied customers of Land Rover of Richmond, VA.
Mark |
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