Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum - View Single Post - Failed SMOG again in CA...High NOX count....

yetijeff · 12-09-2013, 07:37 PM

Pop the Allen caps on top of ur intake mani runners. They're clean outs for ur egr ports. 90% of these cars have never been cleaned and are packed solid with carbon not allowing egr gasses to pass through.

12-09-2013, 07:37 PM	#17
yetijeff Zilvia Addict Join Date: Sep 2010 Location: Corona Ca Age: 34 Posts: 765 Trader Rating: (3)	Pop the Allen caps on top of ur intake mani runners. They're clean outs for ur egr ports. 90% of these cars have never been cleaned and are packed solid with carbon not allowing egr gasses to pass through.