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?
|
|
10-08-2009
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?
10-08-2009
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.
10-08-2009
Alright, no more WOT till it's fixed then lol.Originally Posted by FoSHO99
10-08-2009
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.
10-09-2009
if your running lean enough to throw a code...then you are not just a little lean you are VERY lean...be careful!
10-09-2009
Yeah it's throwing a system too lean SES code. I haven't been getting into boost at all since I posted this lol.
10-09-2009
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.
10-09-2009
Alright, thanks. I didn't even know you could run it without an MAF.
10-09-2009
You bet you can. One of the first things in the FSM for maf testing is to unplug it.
10-09-2009
youre supposed to unplug the MAF and do a VE tune before you do any other tuning.
10-09-2009
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.
10-11-2009
So you're saying if I get it tuned with the maf unplugged I wont even need an MAF?
10-09-2009
So some 3800s use the ve table with the other fueling tables while the Maf is functioning?
10-13-2009
yes from what i have read, the ve is used to check for maf fault and some cars seem to use a combination of maf and ve. only way to check if your car uses ve tables is to zero them out to see if there is a difference when running. most dont though. i think the main reason they have them is for when the maf fails it runs off the ve tables. may run like crap but atleast it runs and you dont have to pay a tow bill home. no real reason to run your car on ve tables only. maf is by far easier to tune then ve is. If are cars were ve only then when people would add a cold air intake you would have to get a tune more so then with a maf based vehicle.
10-11-2009
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.
10-11-2009
Ok thanks. Hey bio, wanna grab that pic from the lounge and do some circling for me?
10-11-2009
You unplug the connector at the maf.Ok thanks. Hey bio, wanna grab that pic from the lounge and do some circling for me?
10-11-2009
Nobody post where they should anymore. Also the tuning section is kinda a dead zone .
10-11-2009
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?
| « Previous Thread | Next Thread » |
| Tags for this Thread |
| Bookmarks |
Bookmarks |
