Question about running lean.
#5
Yea, a mettallic rattle is a good description. Marbles or BBs are good too.
The computer may pick up being lean but can still act normal if there's detonation.
Ex: My old tune pinged terribly and I thought it was my hurst for quite a while - it wasnt.....
The computer threw no codes
The computer may pick up being lean but can still act normal if there's detonation.
Ex: My old tune pinged terribly and I thought it was my hurst for quite a while - it wasnt.....
The computer threw no codes
#8
pinging is something that you would definitely hear over a stock exhaust but may be tough to hear over LT's, off road X pipe, and a loud axle back.
like it's been said it's a metal on metal kinda sound. kinda like jiggling around loose quarters. you should also feel it running lean under load. unstead of running nice and smooth like it would under ideal conditions it'll break up and just not be smooth.
it's hard to describe until you experience it, my best advice is if you floor it and it doesn't feel "right" or "normal" then get off the throttle. it doesn't take a lot of detonation to destroy a motor and running lean is the quick road to detonation.
like it's been said it's a metal on metal kinda sound. kinda like jiggling around loose quarters. you should also feel it running lean under load. unstead of running nice and smooth like it would under ideal conditions it'll break up and just not be smooth.
it's hard to describe until you experience it, my best advice is if you floor it and it doesn't feel "right" or "normal" then get off the throttle. it doesn't take a lot of detonation to destroy a motor and running lean is the quick road to detonation.
#9
By the time the computer notifies you of a lean condition via the dummy light, it is more than likely going to be too late for the motor. I recommend that everyone who does even light modding invest in a good quality wideband guage.
#10
I have a question to add to this, cos I'm also trying to find out what pinging is... Would the sound be continuous or just one loud pop? Here's my senario. I added LT's on a supercharged car without modifying my tune. Since the install, I'm hearing this sound...like metal rattling, or fluttering, but only under load/acceleration. On two seperate occasions, I heard a very loud bang, but while idling at a red light- which i'm almost certain was detonation. Am I running lean?
Sorry for hi-jacking, but this could help the OP...
Sorry for hi-jacking, but this could help the OP...