Why Is My Engine Pinging

[rami]

my engine is pinging on boost... and its not boosted the engine runs smooth and theres nothing about it that seems like theres something wrong.. but when i hit past 4500rpm it pings! and its pissing me off it wont boost etc..... what is it and what do i do..??

[_8OO5TED_]

gap the plugs to 0.8mm....

its not pinging, its missing.....

u have re-posted havent you? my stock R33 did exactly the same thing.

i would recommend u change and gap the plugs

[Bluprint]

Is it making a sort of mechanical/tinny rattling noise?

[rami]

YES IT IS!!!! but i thought that was some metal hitting something... what is it dude???

[lingeringsoul]

all I know is, if it sounds like nails rattling in a can, ITS BAD NEWS.....I don't know anything more

so tkae it to a mechanic and get it checked out I guess

[Craved]

descriptions about pinging are correct

maybe time for some descripitons on the car ..

mods????

running premium fuel?

[shyskyline]

what boost u running on and have u got stock turbo

what sort of skyline u got?

[Spook's_Skyline]

perhaps this is why you were able to swap cars . .. . .

did you get the liner checked out by a mechanic first?

[Bluprint]

Then that sounds like pinging.... I thought mine was pinging last year but apparently it turned out to be the dust collar on the back of the gearbox where the tailshaft goes in had come loose and was getting clipped as the tailshaft spun, try looking at that, but if it's only when you hit boost then it's more likely going to be something like pinging. Is is constant or does it happen with like no pattern or what?

[sewid]

Could be your forgies.

[rami]

found out what it was.... thanks neway guys.. the rattling was because of a loose component in the engine bay... and the pinging was from the dikhed whom i bought the car off... he gave me a full tank of REGULAR unleaded... now its got bp ultimate and its all fine... btw i was running 7psi on a r33 skyline front mount 3 inch turbo back... its all running smoothly n etc.. thanks to the guy who reminded me about premium... i called him straight away n asked the ex owner when he gave me fuel.. what kind etc.. in a way his a dopey but nehow.. thanks neway

[Mr Italy!]

Now you just gotta hope the pinging hasnt hurt your engine much. It doesnt take much to cause a problem.