Same car-same chip-no pinging
I have not noticed any pinging at any speed. You need to make sure you are using at least 91-octane fuel. May be critical. Next, run some quality fuel injector cleaner. I like Techron. There are other additives that can help. "Fuel Power" for example, is added to every tank and can help clean your engine. I have been told it can possibly lower octane requirements.
When was the car tuned last, plugs, air filter, fuel filter etc? Are there any vacuum leaks etc?
As for a pinging definition. I am sure others can do better. IMO, it is a light metallic tapping/rattling sound when accelerating under a light throttle/high load.
Good luck, The EAT chip is great, best improvement I have ever made to my car.
Originally Posted by
liquidtiger720
I just installed marks EAT chip in my 95 525i. I let the car warm up for about 1 min. prior to driving. I started off driving slow under 2k rpm around my neighborhood. As soon as the engine warmed up. I started driving a little more aggressive. First thing I noticed was smoother shifting? I dont know if that was an due to the chip, but all the shifts felt smoother than before. Idle is not as rough, and the power seems to be more consistent through the rpm's.
My only concern is pinging~
At my young age of 18, I have yet to actually hear a car "ping" thus not really know what it really is. Should the ping be high pitched/low pitched or what? Could somebody please try to describe what "ping" sound like and acts like.
Last edited by Russell; 02-13-2005 at 11:08 AM.
Thanks,
1995 525i Auto, M50TU 2.5L, EAT chip, 1/95 build, USA, 205/65/15 tires, ASC+T, HID, lumbar, EC Mirror, BMW Alpine 5 radio with BMW-Pioneer CD Changer, abt 236k miles, Oxford Green/Parchment