RangeRovers.net Forum banner

21 - 28 of 28 Posts

·
Registered
2006-2009 Range Rover MkIII / L322
Joined
·
532 Posts
70psi almost 5 bar its too much like 40-50% acording to jlr 3 bar is fine i am running 2.3-2.6 on idle like the other owners i know.
For lambda readings we need a specialist.
Lean means air in the mix or less fuel in there.
Confused
 

·
Registered
2006-2009 Range Rover MkIII / L322
Joined
·
532 Posts
Also my bank 1 and bank 2 equivalence ratio(lamba) sensors are reading 0.991... which means it's running a smidge on the rich side....

This is all confusing for me, given my lean codes and the data stream reading on the rich side on all my monitors...

I would love to understand all this more, if anyone has a more input, I've seen how big of an issue this has been and I'd like to fix my rover along with passing on this information to anyone else that's having just as hard a time figuring out the lean code issue and hopefully saving them alot $$$ at a dealership or indy shop.

Jason
Lean codes are sometimes very difficult to understand on this jag engines.
I was running while ago one bank rich one bank lean.
 

·
Registered
1970-1995 Range Rover Classic
Joined
·
23 Posts
Discussion Starter #23
70psi almost 5 bar its too much like 40-50% acording to jlr 3 bar is fine i am running 2.3-2.6 on idle like the other owners i know.
For lambda readings we need a specialist.
Lean means air in the mix or less fuel in there.
Confused
It does seem high... but I'm not sure how I could regulate it down...

I cant help but think it's an air issue.... but I really cant say for sure if the injectors are good or bad. From my visual inspection they looked good... but I didnt take them apart or have a shop flow test them either
 

·
Registered
2006-2009 Range Rover MkIII / L322
Joined
·
532 Posts
It does seem high... but I'm not sure how I could regulate it down...

I cant help but think it's an air issue.... but I really cant say for sure if the injectors are good or bad. From my visual inspection they looked good... but I didnt take them apart or have a shop flow test them either
Injectors are out of game for now. If the culprit is injectors they are coming with misfires. You can check injector pulse on jlr software.
Do you have some black smoke on first starts?
 

·
Registered
1970-1995 Range Rover Classic
Joined
·
23 Posts
Discussion Starter #25
Injectors are out of game for now. If the culprit is injectors they are coming with misfires. You can check injector pulse on jlr software.
Do you have some black smoke on first starts?
Kinda what i was thinking, if i had some bad ones id see a misfire. I can watch the injectors firing and voltage on my scanners live data and there are no issues there.

No smoke or anything on start up. I was running my scanner tonight and noticed my IM readiness showed that 7 of the 8 monitors were set, and the one monitor that didnt set was my evap. Here in California all engine monitors have to set except the Evap to pass smog, so im going to try to smog it tomorrow.
 

·
Registered
2006-2009 Range Rover MkIII / L322
Joined
·
1,088 Posts
Evap will only run with fuel level between 20% and 85% full. If your tank is out of that range that test won't run. Guess it to prevent sucking fuel or taking too long to draw a vacuum.
 

·
Registered
1970-1995 Range Rover Classic
Joined
·
23 Posts
Discussion Starter #27
Evap will only run with fuel level between 20% and 85% full. If your tank is out of that range that test won't run. Guess it to prevent sucking fuel or taking too long to draw a vacuum.

Yes, that's correct!! I have a half tank so I should be fine. In the smog shop right now and they said all the correct monitors were set... now to see if it will pass...

Even if it does pass, I still want to find the lean issue. So this wont be the end of this thread. I know what ever I find may help someone else and give me more insight to issues like this on other vehicles.

Jason
 

·
Registered
1970-1995 Range Rover Classic
Joined
·
23 Posts
Discussion Starter #28
It passed smog!!! I feel so much better. Also after a good conversation with the smog tech he suggested I go back to the injectors(after hearing about how dirty my fuel filter was)

Hes had similar issues and said the injectors were still dirty
 
21 - 28 of 28 Posts
Top