I own a 2003 Land Rovery Discovery II with 75,000 miles on it. The service engine light is on and codes that require attention are:

P0130 - O2 sensor curcuit malfunctin (bank 1 Sensor 1)

P0171 - System to lean ( bank 1)

P1171- Manufacturer Control Fuel Air Metering

My question is if I replace all O2 sensors and the MAF should this remedy the problem or should I look somewheres else.

If anyone can provide me with a place to get or order the O2 sensors (not universal ones) and MAF i would appreciate it.

Can a normal person do the work themselves or is it to difficult

Thanks

 

It is a little early to do all 4 02's, if it were mine, I probably would. If you replaced them, that will stop the codes, once you had them cleared and you won't need a new MAF.
Have you already done a 60 K tune up along with new 8 mm plug wires?

 

Just recently I replaced Coil Pak,and all spark plugs and wires, along with, I had to replace the coolant hose from the recovery tank to throttle body.

So would you replace all 4 O2 sensrs first then see if the problem is corrected.

Where to buy or order them and can I do the work. I don't want universal ones

Matt

 

Bank one sensor one will cause all three codes as its only on one bank. Plus clean out the connector as it might have lots of coolant and or oil in it.

Replace the one sensor and you will be fine.

if you are still getting the lean code on the one side then look at a broken catalytic weld or loose gasket.

 

Ok Thanks guys, now last question, which O2 sensor is that when I'm ordering Pre cat right, pre cat left, post cat right or post cat left.

Who is the best to order from and is it easy enough for me to do the work

 

Drivers side front. Try Atlantic British or British Parts of Utah.
Why did you replace the coil? Stay away from the MAF cause you have no codes indicating there is a problem with it.

 

I changed the 1 coil pak, plugs and wires, because in December i had codes p0301 # 1 cylinder misfire and code p0306- #6 cylinder misfire. After that stuff was changed no problems till now these new codes.

Thanks Im ordering the O2 sensor now.