Pinging on boost

[SCR34M3R]

well i got my car this is the first week i get to drive it and i wanna give it a bit of shit

but when i give it a bit at about 3500rpm its starts pinging really bad then it stops

its a R33 GTST and i just got it from japan

how can i stop this? and how bad is it?

cheers

[LBR33]

Iv got the same problem i should be changing the plaug on the weekend but wont be able to test it on th road for a while

[PranK]

you got an aftermarket ECU? cam gears? what mods are done and how much boost you running?

[SCR34M3R]

prank: the car is stock as i havnt done nothing the boost i dont know yet i am trying to work out how this a pillar holder goes but on the one in the dash it it goes about 3.5-4, pretty much the line befor 7 which is half way sometimes just under

[PranK]

How many k's?

[SCR34M3R]

46k

[NRB]

What fuel?

[SCR34M3R]

bp ultiment i just put some octane booster in it befor to try and help it maybe

[NRB]

I'd drive it off boost until you get a tuner to look at it, or perhaps consider resetting the ECU if it's stock.

[SCR34M3R]

yer i been driving nice now,

might be a stupid question but do u reset it?

[SCR34M3R]

someone said plugs should i do them?

[L 33]

I also seem to have the same problem i have fmic, safc2 plus all the other mods. pulled the plugs out and noticed that the tip on one of them was broken, these ware iridium plugs. dont know if thats the problem but you could check.

[NRB]

To reset a factory ECU, disconnect the battery, depress the brake pedal a few times, try to turn the lights on etc. to fully drain the stored charge. Then reconnect the battery.

[SCR34M3R]

just went to SST and got it on the dyno and they reckon its the cat, coz its getting heaps of fuel and it has a smell to it which they said is the cat

so hopefully that is it

[Kaido_RR]

Your timing might be advance, get a workshop to check it out

[NRB]

Have they replaced the cat now? How is it?

[SCR34M3R]

i fixed the cat myself just got now all new exhaust going on next week so was just a quick fix and its all good now no pinging at all

[sik14]

mines just started doin this aswell. i cant really see how the cat could make any differance tho?

anyone else proven this theory?

[Kinks]

My ignition timing was set to around 18 degrees, and the recommendation on here is 15. Knocked it back to 15 and it looks like that solved the pinging issues - the strange thing is when I bought the car it didn't ping but 6 months later it started to. Anyway, definitely get the timing checked in case yours is out too.

[Swink33]

When I first got my car it used to ping at about 4,000 rpm after having it on the road about six weeks. I got new spark plugs gapped at 0.8 and it solved the problem. My car was stock at that time except for a catback exhaust.