K20A Pinging Problem

[Azz86]

Checking the long & short term trims vs actual mixtures is basic stuff - Need a decent scan tool & accurate lambda meter.
There are a variety of things that can be the cause so targeting though testing so that actual problem can be solved rather than throwing money at a guess.
& tuning the car before the issue is solved may also be wasting money.
The K-pro can be good a diagnostic tool is you have access to one though.
- Check knock sensor output & function
- Check long & short term fuel trims
- Check Vtc cam command vs cam actual (early stages of vtc sprocket failure also sound like pinging)
Other things that may help are new fuel filter & cleaned injectors, but that also may make no difference.
Once the problem is correctly identified though, it can then be solved & after that, yeah, a tune would be worth it.

Hope that helps

Awesome dude. Thanks heaps for the info. This is great.