Sk8trfred

ok here whut's happening the car runs great in all gear except 4th and 5th in those gears I get pinging above 3500rpms but only at WOT if I back off to 3/4 throttle the pinging stops. what is this caused by and how can I solve it. oh yea I'm using 93 octane. and I havn't checked my timing yet. I'm just trying to understand why its only in 2gears and only at WOT.

georgiaguy246

your timing is too high. take it down 2 degrees and it should be fine.

93must

Check your plugs, wires, cap and rotor also!

Sk8trfred

I've got brand new MSD wires and CAP and semi new plugs. I really should replace the rotor though lol

93must

Always change the rotor with the cap! Did you set your gap correctly on your plugs? Have you changed the fuel filter lately?

Sk8trfred

yea I know I should change to cap and rotor but I had a MSD cap lying around so I put it on and forgot the rotor. oops. yes I did gap the plugs. and I havnt' changed the filter since I bought the car.

94gtcoupe

y do you have your foot on the floor in 4th anyway??? and don't say to pass thats y we have 3rd

Tims 88GT

Me say EGR or Timing.

kennebell92conv

check the timeing

Sk8trfred

3rd only goes so fast after that I need 4th lol