Kawika

Got a couple of opinions in the A4 forum but would like more views.

My car pings (sounds like a ping-pong ball dribbling in my engine).
I'm assuming that it probably is my chip since it's from TAP. (Don't mean to bash) but I can't exactly test another chip since I only have one.

I also contemplated my BOV, but the damn thing pings even after about 5 minutes of cold start-up so it can't be the BOV since no air is excaping/exiting into atmosphere.

I'm already running 93 octane, should I try changing my plugs?
Doing a Fuel Injector flush/clean additive?

Has anyone heard of PREP(Pressure Relief Engine Protection) Plugs that have a pressure relief valve to help in situations like this?

Any opinion and advice would be greatly appreciated.

Thanks,
DAVID

nwong

If so, what boost are you achieving during boost? Is it ambient temperature hot? Have you looked at your plugs to determine relative A/F mixture? Where do you get 93 octane?

Kawika

Have both electric boost and egt gauge. I don't have much knowledge of where the temps should be, but when I get them installed, the only thing that I'm aware of to look for is to see how constant the boost is.

What temps on the egt should be normal/abnormal?

Also, the performance shop near me wants to charge me $50 for the install of my boost gauge,
and $80 for my egt gauge. Does that sound about fair?

Thanks in advance...

DAVID

WJM

not to sound stupid, but I have had pinging once, and it was with 93 octane from a Shell station.

First chance I got I went back to Mobil

Kawika

I wonder if I went down on octane if that might help. Just concerned that I need the higher.
At this point, I still think that it is the chip. Only thing that I can do at this point until I get/change to diff chip is to try a injection flush, change plugs and change octane. I wonder what would happen if I put an octane booster?

Thanks for your input

David