LRA 40g Main Tank '05+ Install

[J1000]

Thanks for the tips. I'd be interested in seeing what the CEL is for. I think the EVAP check takes place after the vehicle has been filled up and then parked for a number of hours or longer. So possibly the greater volume is throwing off the measurement. Might be easy to spoof.

The delayed shipping messed up my plan but hopefully I'll get it installed later this month or next.

 

[salsaredpearl]

I too would be curious about which codes it’s throwing.


I assume the answer is “not possible,” but I wonder about the potential of retrofitting EVAP system from earlier 100s that have the charcoal canister under hood, are compatible with these LRA tanks, etc.

Or deleting it… or potentially overriding/bypassing some of these seemingly irrelevant checks it performs.

My other vehicle is an old e39 BMW and there’s tons of stuff people on the forums have managed to work around with simple diy bypass harnesses or coding tweaks to various modules in the cars. Including SAIP type malfunctions which I consider in the same ballpark as this EVAP business (there by mandate and causes more headache and reliability issues than anything.)

Just some thoughts, not sure if anyone has input.

 

[GTV]

Thanks for the tips. I'd be interested in seeing what the CEL is for. I think the EVAP check takes place after the vehicle has been filled up and then parked for a number of hours or longer. So possibly the greater volume is throwing off the measurement. Might be easy to spoof.

The delayed shipping messed up my plan but hopefully I'll get it installed later this month or next.

I finally broke down and ordered a BT code reader. It's likely the same small evap leak as it was before. I don't think it's volume related as the idiot lights have been triggered when the tank was at least 3/4" full, so the air volume was relatively low. The lights haven't triggered while driving, the 3 times they've come on was after sitting overnight.

I too would be curious about which codes it’s throwing.


I assume the answer is “not possible,” but I wonder about the potential of retrofitting EVAP system from earlier 100s that have the charcoal canister under hood, are compatible with these LRA tanks, etc.

Or deleting it… or potentially overriding/bypassing some of these seemingly irrelevant checks it performs.

My other vehicle is an old e39 BMW and there’s tons of stuff people on the forums have managed to work around with simple diy bypass harnesses or coding tweaks to various modules in the cars. Including SAIP type malfunctions which I consider in the same ballpark as this EVAP business (there by mandate and causes more headache and reliability issues than anything.)

Just some thoughts, not sure if anyone has input.

I've heard this sort of thing is very common in the BMW world, not so much over here.

 

[Sargy]

@GTV Check this out for P0456. LRA on a 200 but the canisters are similar it looks like. Do we have a similar breather setup?
Side note: My 06 fuel tank is damaged enough from wheeling so I am looking at options myself for a replacement.

Anatomy of P0456 - Small Evap Leak

Recently have been getting CEL code P0456 - small evap leak. As the evap system self test is performed at night by the vehicle, usual symptom would be a nice greeting in the morning with flashing CEL, 4LO, TRAC, etc. And the inability to toggle 4LO, CDL, etc., if off-road camping. It...

forum.ih8mud.com

 

[Zuberg]

Just bumping this to see how the LRA tank is running. Did you figure out the evap code fix? @J1000 did you install your tank yet?

 

[GTV]

I haven’t figured it out, haven’t tried either.
I put over 10k miles on it in 4 1/2 months last summer so I’m confident that it works.

 

[J1000]

Just bumping this to see how the LRA tank is running. Did you figure out the evap code fix? @J1000 did you install your tank yet?

Haven't installed mine yet. Looking to get it done this spring, however. Have a shop full of customer projects at the moment.

 

[jtb517]

Wonder if the charcoal canister got doused with fuel or something like that? I had seen some other threads in the past where this had happened in hot weather at high elevation.

 

[GTV]

Wonder if the charcoal canister got doused with fuel or something like that? I had seen some other threads in the past where this had happened in hot weather at high elevation.

I have no doubt that mine got flooded in ver 1.0. Hopefully that’s all it is, clearing the codes every 500–1000 miles is annoying. Still worth it though.