I'm thinking of going to look at a 1994 Range Rover. I talked to the current owner and he says the CEL is on. I'd like to be able to read the code(s) when I check out the truck. I have an OBD2 reader for my 1998 Disco. Will this plug into the Range Rover's data port and communicate with the on-board computer? If so, where is the port located? If my Scangauge won't work with the RRC, what does it take to read the codes?
OBD1 code scanning on RRC?
- Thread starter Tugela
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ptschram
Well-known member
Pre-'96 Rovers are sometimes referred to as OBD-1-1/2.
The only scan tools I know of that are capable are the Autologic (in which I have less than no confidence based upon personal experience and the fact that rep couldn't even bring one to demonstrate that was functional and he STILL wanted more than $11,000 for it) or the BlackBox Solution's products.
With a '94, it will have a pretty damn robust EMS and they only have a very few components or conditions that will result in illumination of the CEL/MIL.
To be honest, if buying from a less than knowledgeable seller, it is great leverage to get a better price as "you know, you can't just run down to AutoZone and have the codes read"...
Good luck, I love my '94 LWB and would like to find another one in pristine condition so I can continue to drive a classic for the foreseeable future.
The only scan tools I know of that are capable are the Autologic (in which I have less than no confidence based upon personal experience and the fact that rep couldn't even bring one to demonstrate that was functional and he STILL wanted more than $11,000 for it) or the BlackBox Solution's products.
With a '94, it will have a pretty damn robust EMS and they only have a very few components or conditions that will result in illumination of the CEL/MIL.
To be honest, if buying from a less than knowledgeable seller, it is great leverage to get a better price as "you know, you can't just run down to AutoZone and have the codes read"...
Good luck, I love my '94 LWB and would like to find another one in pristine condition so I can continue to drive a classic for the foreseeable future.
yup just check out the LED readout under the passenger seat and go from there. i'm sure you'll find a list somewhere on the web of what each number reads. its almost always related to O2 sensors or throttle potentiometer (usually base idle adj or vss).
ptschram
Well-known member
Thanks, PT. I appreciate that 14CUX is a fair sight simpler than even GEMS, although when I had my 1990 RR I was too young and dumb to learn about it. The current owner says the engine doesn't sound right. Given my limited knowledge of the 3.9 I can't begin to guess what sorts of issues would prompt an error code. I'm hoping it's something as simple as timing or needing a tune-up. Or it could be something more involved, I really have no idea at this point.
The truck is in beautiful shape otherwise with gorgeous paint and a well cared-for interior. It only has 119k on the clock and the body electrics all supposedly function. My heart wants it, my head and my wife are leery of taking on an unknown unknown. At least with my Disco I know where all the demons are (and there are still several). I want to go look at it and if the heart gains the upper hand I might take it to Ship's Mechanical or some other Rover indie specialist in Portland for an inspection.
PT, can you rattle off a couple of usual suspects for what causes the CEL to illuminate on this engine? I can at least get started doing some research into those.
For motivation I'll throw in some photos from the ad. One look and I hope you'll say "Damn, I want Nick to have that truck!" Maybe you can even call my wife and help tip the scales. Just think of all the parts I'll have to buy from you to keep this beauty running.
The truck is in beautiful shape otherwise with gorgeous paint and a well cared-for interior. It only has 119k on the clock and the body electrics all supposedly function. My heart wants it, my head and my wife are leery of taking on an unknown unknown. At least with my Disco I know where all the demons are (and there are still several). I want to go look at it and if the heart gains the upper hand I might take it to Ship's Mechanical or some other Rover indie specialist in Portland for an inspection.
PT, can you rattle off a couple of usual suspects for what causes the CEL to illuminate on this engine? I can at least get started doing some research into those.
For motivation I'll throw in some photos from the ad. One look and I hope you'll say "Damn, I want Nick to have that truck!" Maybe you can even call my wife and help tip the scales. Just think of all the parts I'll have to buy from you to keep this beauty running.
And now I feel slightly silly having added to my own thread before realizing Mr. Shipman himself chimed in.
Neil, what are you doing next Saturday? Want to come check out this Range Rover with me in Gladstone?
I'll gladly buy you a few bottles of Captured by Porches or your local concoction of choice.
It's only 16 miles from your shop. Maybe I can get the owner to let me bring it by your shop for an inspection during the week. Or something. I wonder if this purchase would qualify as a business expense for my company...
Neil, what are you doing next Saturday? Want to come check out this Range Rover with me in Gladstone?
I'll gladly buy you a few bottles of Captured by Porches or your local concoction of choice.It's only 16 miles from your shop. Maybe I can get the owner to let me bring it by your shop for an inspection during the week. Or something. I wonder if this purchase would qualify as a business expense for my company...
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ptschram
Well-known member
That is a beautiful truck.
Neil already addressed some common problems.
The TPS is a huge problem for the older trucks. Worse yet, they cost an arm, leg and both testicles to buy new. Fuel injectors clog badly leading to what appear to be oxygen sensor issues as the ECU sees this as oxygen sensor not injectors.
Worst case, replacing the fuel temp sender, coolant temp sender, both oxygen sensors and the TPS aren't all THAT expensive given the appearance of that truck.
How many miles are on it? while the bodies are in beautiful shape out west, the mechanical stuff deteriorates at the same rate as the rust buckets I have. If you intend to keep it, consider a new cam and lifters right away as they are likely gone.
Also, I'll put big money on the vacuum advance canister being compromised. I think I still have a few of that batch of ten I got due to a software glitch a few years ago.
Neil already addressed some common problems.
The TPS is a huge problem for the older trucks. Worse yet, they cost an arm, leg and both testicles to buy new. Fuel injectors clog badly leading to what appear to be oxygen sensor issues as the ECU sees this as oxygen sensor not injectors.
Worst case, replacing the fuel temp sender, coolant temp sender, both oxygen sensors and the TPS aren't all THAT expensive given the appearance of that truck.
How many miles are on it? while the bodies are in beautiful shape out west, the mechanical stuff deteriorates at the same rate as the rust buckets I have. If you intend to keep it, consider a new cam and lifters right away as they are likely gone.
Also, I'll put big money on the vacuum advance canister being compromised. I think I still have a few of that batch of ten I got due to a software glitch a few years ago.
Thanks, PT. Price estimates on the parts you listed? Beyond the colorful and qualitative amounts you suggested for the senders and TPS?
119k on the odo. Not sure where that was accumulated, though. Given the state of the tailgate I'm guessing somewhere sunny.
119k on the odo. Not sure where that was accumulated, though. Given the state of the tailgate I'm guessing somewhere sunny.
ptschram
Well-known member
Must be. I can't even find the part on the usual suspects' websites (AB, RN, L8).
http://www.pangaea-expeditions.com/resources/obdcodes/index.html
Explanation of the codes, how to clear, etc.
.
Explanation of the codes, how to clear, etc.
.
http://www.roverparts.com/Parts/ETC8495G
http://www.roversnorth.com/ProductDesc.aspx?code=ETC8495&type=0&eq=&key=it
And I'm sure PT can quote you a price too.
Pretty nice for sure. Don't see too many 94 SWBs. Just buy it!! But, before you do make sure you check the rear load area under the carpet. The driver's and passenger floor is a pretty easy fix, yet, that cargo area floor is more difficult. Of course anything can be fixed if you want.
OBD1 reader is available as share ware. I use it all the time and love it. From a personal opinion standpoint... I prefer the 94 over the 95 (sorry Heather).
Here is the link and the interface plug they mention costs about $30 to make... very simply IF you can insert a 400 ohm resistor inline and follow some uncommon yet basic instructions on how to reverse the signal output for a FTDI USB you will be in business.
It is called ROVERGAUGE http://code.google.com/p/rovergauge/
This is how you make the interface plug http://code.google.com/p/libcomm14cux/wiki/HardwareInterface
you will also need to source the 5 pin plug to plug into the 14CUX.
Shit... aside from that, if you have a multimeter you can resolve 90% of your issues... no knock sensor, no crank sensor.... only two O2's.... I could go on.
Here is the link and the interface plug they mention costs about $30 to make... very simply IF you can insert a 400 ohm resistor inline and follow some uncommon yet basic instructions on how to reverse the signal output for a FTDI USB you will be in business.
It is called ROVERGAUGE http://code.google.com/p/rovergauge/
This is how you make the interface plug http://code.google.com/p/libcomm14cux/wiki/HardwareInterface
you will also need to source the 5 pin plug to plug into the 14CUX.
Shit... aside from that, if you have a multimeter you can resolve 90% of your issues... no knock sensor, no crank sensor.... only two O2's.... I could go on.
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