Pinging badly

[tjm73]

My 98GT was pingin liek crazy even at highway speeds when you gave it just a touch of throttle to go up a hill or pass someone. I just put a new O2 sensor (had a CEL) and it doesn't ping at all now.

 

[CanadaStang]

with the PI head swap the pinging should have done nothing but get worse, by increasing compression.

He's talking about just replacing the cracked intake, not the complete headswap.

 

[98Black4.6]

That's good to hear!! Did you put it on yourself?

Yup.

 

[98Black4.6]

My 98GT was pingin liek crazy even at highway speeds when you gave it just a touch of throttle to go up a hill or pass someone. I just put a new O2 sensor (had a CEL) and it doesn't ping at all now.

I though about that, but I do not have a CEL. And if it is the O2's, then something is causing them to go bad, which is the root of my problem. The H-pipe I am swapping in will allow me to rule them off the list if it still pings after installation.

 

[98GT-AllMine]

I'll put my money on a "dirty" MAF sensor.

Experienced the same symptoms (clatter on WOT, no horsepower). Cleaned the MAF with contact cleaner, and now she runs like the proverbial "Raped Ape"!

 

[k8037]

carbon buildup in egr port can cause an accel. ping. take the egr valve off and inspect the port if buldup is present clean it & install egr valve .my wifes 94 cougar 4.6l had the same problem & that fixed it. also the correct way to clean the maf is take it off & spray the wires w/carb. cleaner do not touch the wires.