Engine Pinging
#1
Engine Pinging
I have a 94 Gt with aode and bolt on mods but mostly stock. Under load with pedal all the way to the floor the engine pings really bad, then i let off and it runs fine. I have a vaccume gague and it starts pinging at around 4 pounds all the way to zero when pedal is on the floor. What the hell is going on? thanx for any info!
#5
RE: Engine Pinging
when you hear pinging, its the pistons rocking back and forth inside the cylinder due to the gas igniting prematurely, also if your running cheap gas sometimes hot carbon build up will ignite it too, use higher octane so its harder to ignite[sm=smiley20.gif]
#8
RE: Engine Pinging
ORIGINAL: nemethjames1
when you hear pinging, its the pistons rocking back and forth inside the cylinder due to the gas igniting prematurely
when you hear pinging, its the pistons rocking back and forth inside the cylinder due to the gas igniting prematurely
And if you live up in colder climate locations (below freezing most of the winter) then you will get some heavily "winterized" gas which is more likely to ping. Also in colder weather the ecu adds (or doesn't pull) as much timing due to the cooler intake temps. Run some higher octane gas or octane booster that should help - also only gettin gas from places like Shell & Chevron