2000 ls V6 lean bank one 3 and 6 misfire

[yiw1z4rdcom]

Ok all i have a 00 ls v6 and this has done nothing but cause issues.. the first mo i had it i had to put a trans in it... But love the car.. I have a few issues with it right now... i have changed most of the coils in there and new plugs.... but right now i get a bad smell out of the tail pipe of gas i hooked it up to a computer and it says 3 and 6 misfiring... then another code poped up said lean bank one... everyone i have talked to said change the coils and the 02 sec. the one b4 the converter.... im guessing bank one is on the passenger side.. But when i hit the gas it sputters bad its like the gas is just building up.. not sure about it all please help me.. what i have bought and will be here in a few days will be all new fuel injectors found 6 new for just 56 bucks and i ordered a o2 and goin to try that...

[yiw1z4rdcom]

to add to all this i also gutted the converter on the driver side and had to saw the mufler off due to so much crap in it... so now it sounds like a crop duster... but thats why i put the memphis system in there so i cant here any problems anymore but please need help with the issues

[wyldhillbillie]

lean conditions are usually caused by a vacuum leak some where.

[danielsatur]

Use the Forum Search Tool ''PCV elbow''

All air is metered going into the the intake, when the PCV system fails, it will generate lean codes, and cause random misfires.

Isolate the PCV system for the short, by plugging the air duct work going to the intake.
Any diesel shop can micro bath, blow out, and test the flow rate on your injectors.

[yiw1z4rdcom]

i dont think ill do the test bc i am starting to run low on money think ill just pay for that pvc its just 6 bucks but could that make it run so lean and were it keeps shooting gas in and making it sputter... bc if i let it sit and run for 30 mins it will die bc flooding and when i do get it to crank it starts rolling out black smoke and smells like gas bad.. also anyone have pics on were the pvc is and change it..

[joegr]

Originally Posted by yiw1z4rdcom

i dont think ill do the test bc i am starting to run low on money think ill just pay for that pvc its just 6 bucks but could that make it run so lean and were it keeps shooting gas in and making it sputter... bc if i let it sit and run for 30 mins it will die bc flooding and when i do get it to crank it starts rolling out black smoke and smells like gas bad.. also anyone have pics on were the pvc is and change it..

The test is easy to do, it just takes a few minutes.
Changing the PCB elbow is not so easy. You have to remove the intake manifold. Do you really want to do that without taking a minute to see if it is even the problem?
Also, it's not the PCV valve that is the issue, it's the elbow that connects to it. Make sure you buy the right part(s). (If this is the problem, then I would replace the PCV valve too, since it is so hard to get to.)

Other things to check are the MAF, and the fuel pressure sensor. I think that failed injectors are the least likely possible cause.

[yiw1z4rdcom]

thats true about taking intake man off but i am goin to half to to change cyl 3 and to change the fuel injectors so i figuar its just 6 bucks why not get a new why i am all ready under there

[shorod]

If you're smelling unburned fuel in the exhaust, the PCV elbow is not the problem. If you perform the forum search mentioned in post #4 above you'll find a lot of information on the elbow.

Also, your 2000 would be suspect for having bad valve cover gasket sets, including the spark plug well gaskets which allow oil to seep in to the plug wells and short out the coils, leading to your cylinder misfire codes and the smell of unburned fuel.

Of course while you're in there replacing the coils and valve cover gaskets you may as well replace the PCV elbow. I think you'd need to also remove the lower intake manifold though to also replace the PCV valve and I think you'll find the correct one for your application is more than $6. Were you maybe looking at a generic cylindrical PCV valve? The one for your car is more of a box that bolts to the engine.

You are probably tripping codes for catalyst efficiency if you've gutted your converter and cut off the exhaust. Also, don't replace the O2 sensor until you get the misfires fixed. If you are running that rich you'll just damage the new sensor as well.

-Rod

[yiw1z4rdcom]

ok but when i hook it up to the computer all it tells me is bad o2 and cyl 3 and 6 could the valve cover gasket cause it to run lean.. bc every linc person said it was the o2... and thats why its runnin rich

[danielsatur]

Troubleshoot the most probable cause, because of age + mileage.
The most probable cause, is bad plastic, rubber, or seals.
There's alot of good data already in the this forum, use key words or pcodes during search's.

Example- AF->Linoln->LS
Search forum ''P0171'' not thread
Search forum ''PCV ELBOW'' not thread

[yiw1z4rdcom]

Hey guys i just ran another test on it and its saying that 1,,3 and 6 are misfiring and lean bank one but i pulled the coil and plug out and no oil nothing could it be from the dumbasses that gaped the plugs and i checked the pcv thing it was just 6.49 or something like that and the elbow comes with it.. what he said.. just a fyi i have also changed the MAF... just wait for all the parts to get here like the six new coils 6 plugs injectors pcv and the o2 come in then put them all at the same time and im not sure what else.

[danielsatur]

TRUST ME!
Put a turnicate, or block PCV port going to the Air duct work, so unmeterd air isn't going into your throttle body.
Reset + clear codes.

You can clean Cop's with CRC MAF, or electrical cleaner.

[yiw1z4rdcom]

whats up danielsatur im not to smart lol but what u said will u break it down into steps for me please... and if i need to change the pcv plus boot can anyone send pics please or direct me to were i can get a pic of it

[danielsatur]

A smoke test is used for unmetered air leaks, any leaks can cause random misfires.

See www.youtube.com/watch?v=FfiQ7qWiG-M

1) The Air duct work is the plasitc piping from the air box (filter) going to the throttle body.
2) The PCV system is connected to this piping, we want to remove the hose from the duct work.
3) We need to plug this hole on the duct work, so unmetered dosn't leak into the throttle body.

All Air is metered from the air box to the throttle body, and any air leaks will confuse the computer control for the air/fuel mix.

4) You can connect an external PCV filter on the hose for the short, but don't forget the PCV elbow will stiill have a little PCV emissions..
Your air intake leak should be fixed, reset and clear codes.