Running rich cause fouled plugs? - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

shift_down · 10-20-2012, 11:43 AM

Hey guys

I had my car running pretty good with idle afrs at 14.5, WOT afrs at 11.5, and the afrs would lean out once I let go of the pedal. So I was very happy with this.

One of my intercooler pipes blew out of the coupler while I was under boost one day.

Now After I put it back together and made sure that there were no vac leaks, my afrs are jacked up.

Idle afrs are 17-18, WOT is about 10.5-11, and I go FULL LEAN after letting go of the gas. The car drives good though.

Could the afrs be bad because my plugs are fouled from running SUPER rich after my intercooler pipe blew out of place?

What do you guys think? Im trying to get my car runing good again. thanks guys

10-20-2012, 11:43 AM	#1
shift_down Zilvia Junkie Join Date: Sep 2012 Location: Tulsa Oklahoma Age: 34 Posts: 313 Trader Rating: (0) Feedback Score: 0 reviews	Running rich cause fouled plugs? Hey guys I had my car running pretty good with idle afrs at 14.5, WOT afrs at 11.5, and the afrs would lean out once I let go of the pedal. So I was very happy with this. One of my intercooler pipes blew out of the coupler while I was under boost one day. Now After I put it back together and made sure that there were no vac leaks, my afrs are jacked up. Idle afrs are 17-18, WOT is about 10.5-11, and I go FULL LEAN after letting go of the gas. The car drives good though. Could the afrs be bad because my plugs are fouled from running SUPER rich after my intercooler pipe blew out of place? What do you guys think? Im trying to get my car runing good again. thanks guys __________________ Ka24 t3/t04b + Z32MAF + 550 subys + Walbro 255 + enthalpy Tune + 91 octane