Check engine light

[drbill2010]

Strange... the check engine light came on after I changed the air filter on my 2006 Range Rover HSE. Coincidence or something else? Bill

[Savannah Buzz]

Hard to tell without the stored code that goes with that. You can go by a shop ($89 to read codes), find an auto parts store that will read for free, buy a code reader/scanner for a modest figure, or an Ultra Gauge that will do all sorts of displays and read and reset codes. If lid is not secure, or if you dislodge the air hose that goes to the engine or another vacuum hose or a plug on something, lots of things could make that code.

[georgep]

Originally Posted by Savannah Buzz

Hard to tell without the stored code that goes with that. You can go by a shop ($89 to read codes), find an auto parts store that will read for free, buy a code reader/scanner for a modest figure, or an Ultra Gauge that will do all sorts of displays and read and reset codes. If lid is not secure, or if you dislodge the air hose that goes to the engine or another vacuum hose or a plug on something, lots of things could make that code.

Side Question, I have Two Ultra Gauges one is mounted in a car and the other we just bought. With my pile of cars will it work on the 2001 Range Rover or the 1986 Land Rover? Do I need any adapters or is it plug and play.
Thank You
George P

[Savannah Buzz]

Not the 86, needs to be something that has a code reader plug (OBDII port), should work on Mutley and newer.

[drbill2010]

Originally Posted by Savannah Buzz

Hard to tell without the stored code that goes with that. You can go by a shop ($89 to read codes), find an auto parts store that will read for free, buy a code reader/scanner for a modest figure, or an Ultra Gauge that will do all sorts of displays and read and reset codes. If lid is not secure, or if you dislodge the air hose that goes to the engine or another vacuum hose or a plug on something, lots of things could make that code.

here are the codes;
P0174: system to lean bank 2
P0171: system to lean bank 1

Car running fine. I cleared the codes, will see if they recur.
Should I do something else?

[Savannah Buzz]

I would wait a few days, some codes don't pop back up until after two driving cycles.

[drbill2010]

Originally Posted by Savannah Buzz

I would wait a few days, some codes don't pop back up until after two driving cycles.

Thanks. I also cleaned the MAF sensor. I'll see what happens.

[drbill2010]

Originally Posted by Savannah Buzz

I would wait a few days, some codes don't pop back up until after two driving cycles.

Yep, same 2 codes popped back up after driving for a while. I just can't find any vacuum leaks or other reason for either bank to be running lean. Well, I'm going to the dealership on Monday to order a spare key, so I'll let them play with it. If anything, I should learn something and report back on here.
Bill

[Rovin4life]

lean codes on an 06 can be caused by alot of things including the injectors clogging up. MAF sensor doesn't go bad in them like the D2.

[drbill2010]

Well, turns out the check engine light codes meant the ECU had to be reprogrammed. I still don't know why. Would just changing the air filter have something to do with it? I'd like to get a better explanation from the dealer.