Hi there,

Let me start off by saying I love driving the Rover, but it has been one thing after the other with it. Just after spending ~$300 to replace a leaking coolant expansion tank and hose this past Friday, I thought I was somewhat home free for awhile.

After taking it out this morning on the freeway I see the "Service Engine Soon" light come on. .

I brought it to the local Oil Change shop and they pulled the code for me.

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Good to see you over here on the dark side!

I still think you're code is PCV related as its one of the errors I was getting. It's referring to incorrect fuel air/mix or more air in the system than expected. This is usually due to a vacuum leak in the system somewhere.

The two thick hoses here are the culprits, but the smaller yellow hose often fails as does the one on the bottom of the cyclone unit (6b673)

Your car has the heated bag thing 9J294 which I wonder if it's NAS only as I've never seen it on a car over here?

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I think that's a generic O2 sensor code, I seem to remembermy old Maserati throwing that code up when the 2 pre-cat sensors were shot 2006 Mercedes CLS
1991 Retro-style Mini
But really finding it hard to fight the urge for a S/C...

And a quick google of the code...

http://landroverforums.com/forum/showthread.php?t=19204 2006 Mercedes CLS
1991 Retro-style Mini
But really finding it hard to fight the urge for a S/C...

Thanks for all the feedback and info everyone.

Dan, thanks for referencing me to this site.

I will look into a USB code reader. If you have any links to brand/product to look up for ~$25 USD I would definitely be game.

I'm also finding in threads that it could be the catalytic converter warranty issue mentioned here:

http://www.rangerovers.net/forum/viewtopic.php?f=2&t=32764

Tidbit of info in the thread M44K TS mentioned:

"i know this is an old thread but the problems with the p1170 code --is ussually a hairline crack in the weld at the front of the passenger side(bank 1) converter-it spans across the top of the converter and can only be seen with a mirror--it can be fixed with simply running a bead weld acroos the top of the converter(you must drop the exhaust to gain access to it)"

motosport3 wrote:

Thanks for all the feedback and info everyone.

Dan, thanks for referencing me to this site.

I will look into a USB code reader. If you have any links to brand/product to look up for ~$25 USD I would definitely be game.

I'm also finding in threads that it could be the catalytic converter warranty issue mentioned here:

http://www.rangerovers.net/forum/viewtopic.php?f=2&t=32764

Tidbit of info in the thread M44K TS mentioned:

"i know this is an old thread but the problems with the p1170 code --is ussually a hairline crack in the weld at the front of the passenger side(bank 1) converter-it spans across the top of the converter and can only be seen with a mirror--it can be fixed with simply running a bead weld acroos the top of the converter(you must drop the exhaust to gain access to it)"

The exhaust is definately worth a punt, isn't there a recall for it in the US?

The only reason I'm dubious about it is that the same reason was given to the previous owner of my car by a LR dealer. Yet there is no crack, just leaky PCV hoses. There is also a guy on here who just bought a RR from a dealer with a "blown head gasket" again similar codes. Trouble is vacuum or exhaust leaks cannot actually be detected by the ECU so it tends to throw all sorts of other spurious codes.

You posted a few pics on rr.net of your engtine cover off - but I didnt see whether you had checked the hoses? They are further back under the pollen filter housing (easy to remove)

RE the code reader, search eBay for USB OBD you want something like this, but preferably more local unless you dont mind the wait.

Dan 

Thanks for the prompt and informative responses Dan.

You're right I didn't actually check the PCV hoses then. I already put the cover back on and it's raining on and off over here so will have to check it out again later.

I did try to squeeze what I could that wasn't covered by the heated bag and with a little pressure was able to collapse the hose. I'm not sure if all of them that are bundled in there should be as stiff as you mentioned.

Great insight, and the recall for the cat is valid in the US for 11 years or 120k miles. That would be ideal.

I'm searching ebay for the OBD USB tool and I've found a few of them. What software do you end up using with the cable? I see EasyOBDII looks packaged with most of them.

The bundled software is a good start for reading and clearing codes, if thats all you want to do then its OK. I use a dodgey version of digimoto which can be found on most torrent sites  

Cleared up and I've become more proficient already at removing the cover. Took off the air fliter this go around as well.

The hoses visually looked fine. Hose 6759B was a little soft. It is almost impossible to view hose 6C342B.

Here are some of the pics I took.

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Interesting - your hoses have been replaced at some point. Originally they would have been fastened with BMW crimp clips, where as now yours uses jubilie clips.

Best take a look at your exhaust next... 

I did just have my coolant expansion tank and expansion tank hose to thermostat replaced on Friday before the SES light came on.

Replacing the tank hose to thermostat necessitated removing the radiator I believe. Do you think or could see any correlation to all of this?

Brought car back to my local shop and had them pull the code again. This time
they found the fuel meter fault as well as "lambda sensor aging fault, downstream fuel trim bank1." they said this was the O2 sensor.

I asked them to put the car the lift and we looked over the cats and saw or heard no leaks.