sr20det fouling spark plugs - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

1992s13hatch · 10-09-2012, 07:33 AM

Hi guys I finally got my Sr running and it is fouling spark plugs. it is a s13 Sr redtop I am running a stock setup and a walbro pump no fpr just the stock one. could anyone tell me why it is running too lean if more info is needed ask. I'll try to help so you can help me out.

csramotorsports · 10-09-2012, 07:50 AM

If it's fouling plugs it is running rich, not lean. Are the ends of the plugs covered in black carbon? THe walbro pump is too much for your stock setup...you need an aftermarket fpr and turn your pressure down. Or go get a tune

1992s13hatch · 10-09-2012, 07:57 AM

Well it was running rich but I found out the problem. then I took it out again and it started bogging out. so I brought it back took the spark plugs out and they had white tips but the circle was black. I thought that meant it was running to lean any ideal why.

s13mikesr20 · 10-09-2012, 02:38 PM

If running to lean adjust iacv if that doesn't fix the idel problem then mabye o2sensor

zneubauer · 10-09-2012, 08:00 PM

02, iacv, or get an adjustable fpr.

10-09-2012, 07:33 AM	#1
1992s13hatch Leaky Injector Join Date: Jun 2012 Location: martinsburg wv Age: 30 Posts: 92 Trader Rating: (1) Feedback Score: 1 reviews	sr20det fouling spark plugs Hi guys I finally got my Sr running and it is fouling spark plugs. it is a s13 Sr redtop I am running a stock setup and a walbro pump no fpr just the stock one. could anyone tell me why it is running too lean if more info is needed ask. I'll try to help so you can help me out.

10-09-2012, 07:50 AM	#2
csramotorsports Leaky Injector Join Date: Apr 2011 Location: Augusta,GA Age: 35 Posts: 57 Trader Rating: (0) Feedback Score: 0 reviews	If it's fouling plugs it is running rich, not lean. Are the ends of the plugs covered in black carbon? THe walbro pump is too much for your stock setup...you need an aftermarket fpr and turn your pressure down. Or go get a tune

10-09-2012, 07:57 AM	#3
1992s13hatch Leaky Injector Join Date: Jun 2012 Location: martinsburg wv Age: 30 Posts: 92 Trader Rating: (1) Feedback Score: 1 reviews	Well it was running rich but I found out the problem. then I took it out again and it started bogging out. so I brought it back took the spark plugs out and they had white tips but the circle was black. I thought that meant it was running to lean any ideal why.

10-09-2012, 02:38 PM	#4
s13mikesr20 Nissanaholic! Join Date: Sep 2011 Location: las vegas Age: 34 Posts: 1,792 Trader Rating: (8) Feedback Score: 8 reviews	If running to lean adjust iacv if that doesn't fix the idel problem then mabye o2sensor

10-09-2012, 08:00 PM	#5
zneubauer Zilvia Addict Join Date: Jun 2011 Location: Florida Age: 33 Posts: 640 Trader Rating: (7) Feedback Score: 7 reviews	02, iacv, or get an adjustable fpr.