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Is running lean safe?

BwolfGT

BwolfGT

New member
I've got a bad maf so I've been running lean and throwing a code or about a week now while I'm waiting to pick up my new one. Is it safe to be driving it around like this alot? Will it cause damage to anything?
 


Too lean is never good, if anything a little rich is best. Running lean and open throttle is a good way to chip pistons. Just take it easy.
 
if youre not knocking then youre not lean enough. your car will be WAY faster if you run it as lean as possible without knocking. im talking about 12.0 or higher AFR when WOT non-intercooled.

but fosh is right, youll blow it up a lot faster running it lean.
 
if your running lean enough to throw a code...then you are not just a little lean you are VERY lean...be careful!
 


If you know your maf is bad, unplug it and run off the pcm tables. At first the car will run like crap until it learns the tables. Running off the tables will most likely make you a little rich and safe.

If you are getting a lean bank code, then the pcm is telling you based off the O2's that it's adding more fuel than it's allowed w/o pushing a code. It's not necessarily lean.
 
BillBoost37 said:
If you know your maf is bad, unplug it and run off the pcm tables. At first the car will run like crap until it learns the tables. Running off the tables will most likely make you a little rich and safe.

If you are getting a lean bank code, then the pcm is telling you based off the O2's that it's adding more fuel than it's allowed w/o pushing a code. It's not necessarily lean.
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Alright, thanks. I didn't even know you could run it without an MAF.
 
But if your car is like many other 3800 cars they are not coded at all to use the ve tables when the maf is working then it becomes pointless. But if you one of the few with it coded into the pcm then your good to go.
 


chrisb said:
But if your car is like many other 3800 cars they are not coded at all to use the ve tables when the maf is working then it becomes pointless. But if you one of the few with it coded into the pcm then your good to go.
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So you're saying if I get it tuned with the maf unplugged I wont even need an MAF?
 
pretty much, but its still good to run it. your car will just be in better shape all the time if it can run independent of it.
 


01GTP said:
Nobody post where they should anymore. Also the tuning section is kinda a dead zone .
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Isn't that 1 of the Mod's Jobs?
Moving topics to where they belong...

I only read from "New Posts", I don't surf the "forums"...

Do you really want to trust an answer from someone surfing the lounge?
 
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