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hey all.

my skyline is pinging around 2000rpm threw to about 3000rpm dose any one have any idea what could cause this i have changed plugs. running v power. put some octane boost in. im thinking possable the timeing as put it on comp an the timin angle is 5%.7

thanks

martin

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i just wounderd if any one had experinced the same or similer prob.its hard to describe exactley wat its doin inless u drive it.

would you recomend anywere or no anyone in newcastle area??

thanks for all the advice.

martin

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15 degrees is what the timing should be at.

If its at 5 degrees, deff get it checked out by a mechanic who looks after imports.

Dont go to nissan as they will charge you thru the roof and probably wont know what to do since they dont work on skylines everyday like other work shops..

Or you could do it yourself and perhaps borrow a timing gun from someone to check.

Edited by siddr20
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My car is totally stock save for a nismo rear muffler and I have my boost solenoid on a switch. If I run 7psi down low it also pings at about 3000RPM.

Higher octane fuel helps, I've also heard that a better exhaust will improve cylinder scavenging and might help this problem.. planning to do it anyway so will see if it helps.

Already checked ignition timing, changed fuel filter, and fitted 1 heat range colder plugs and makes no difference.

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Always used 98RON, I wouldn't use anything less either. It is definitely happier on 100RON.

Timing is 15 degrees, plugs are NGK BK6RE something somethign.. i think the standard heat range is 5 so it's 1 colder. Standard 1.1mm gap.

I have used consult software to try richening the mixture or retarding the timing, and in both cases when I get it to the point where pinging stops the car is running like a dog. So I just leave the boost switch at its normal value so I'm only running 5psi in the midrange and 7psi up top (which it is fine with).

I am thinking that a new exhaust/cat will provide less restriction and hopefully push my load points a bit further which will make the ECU richen things up slightly. I think "taking it somewhere" will only produce one of two outcomes - they will retard my timing further making it run like a dog or recommend a PFC which is a logical (but expensive) step. Really the only thing I haven't tried is replacing the fuel pump, and I don't think that's the problem because the pinging is worst in the midrange.

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