Why is my car running so ritch?? - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

AN89HATCH · 03-03-2005, 03:58 AM

It seems as tho my car is runnign very ritch, My car used to be ka turbo (then i sold everything) and went back to all motor, I still ahve my walbro hp 255lph fuel pump in the car, and thats all i kept from swaping back to all motor. It ran normal for about 6 monts, but lately it seems to be running really ritch, my gas milage is really bad, and now my car is shooting out fire balls. But i checked my spark plugs, and they are not fouled which is weird. will just leaving the hp fuel pump in the car cause it to run rich, and back fire alot?

s13gonwild · 03-03-2005, 04:01 AM

fireballs? hehe take a vid...leave it alone it looks cool LOL do you have a fuel regulator or sumthing like that?

bdeisle · 03-03-2005, 10:22 AM

check the o2 sensor

trixxxr4_kids · 03-12-2005, 03:10 AM

o2 sensor , MAF or if your lucky your air filter is dirty and your ECU is trying to compensate for the loss of air with gas

97SilviaRB · 03-12-2005, 11:47 AM

fuel pump or o2 sensor

papershot · 03-12-2005, 05:05 PM

fuel pump wont make you run rich. the fuel pressure regulator is there for that purpose.

03-03-2005, 03:58 AM	#1
AN89HATCH Zilvia Junkie Join Date: Oct 2003 Location: BAY AREA Posts: 393 Trader Rating: (0) Feedback Score: 0 reviews	Why is my car running so ritch?? It seems as tho my car is runnign very ritch, My car used to be ka turbo (then i sold everything) and went back to all motor, I still ahve my walbro hp 255lph fuel pump in the car, and thats all i kept from swaping back to all motor. It ran normal for about 6 monts, but lately it seems to be running really ritch, my gas milage is really bad, and now my car is shooting out fire balls. But i checked my spark plugs, and they are not fouled which is weird. will just leaving the hp fuel pump in the car cause it to run rich, and back fire alot? __________________ slide your ride.com

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03-03-2005, 04:01 AM	#2
s13gonwild BANNED Join Date: Jan 2005 Location: cali Posts: 466 Trader Rating: (0) Feedback Score: 0 reviews	fireballs? hehe take a vid...leave it alone it looks cool LOL do you have a fuel regulator or sumthing like that?

03-03-2005, 10:22 AM	#3
bdeisle Leaky Injector Join Date: Feb 2004 Location: balti md Posts: 108 Trader Rating: (0) Feedback Score: 0 reviews	check the o2 sensor

03-12-2005, 03:10 AM	#4
trixxxr4_kids BANNED Join Date: May 2003 Location: san diego Posts: 56 Trader Rating: (0) Feedback Score: 0 reviews	o2 sensor , MAF or if your lucky your air filter is dirty and your ECU is trying to compensate for the loss of air with gas

03-12-2005, 11:47 AM	#5
97SilviaRB Leaky Injector Join Date: Nov 2003 Location: North Carolina Posts: 144 Trader Rating: (0) Feedback Score: 0 reviews	fuel pump or o2 sensor

03-12-2005, 05:05 PM	#6
papershot Zilvia Junkie Join Date: May 2004 Location: CT Posts: 368 Trader Rating: (0) Feedback Score: 0 reviews	fuel pump wont make you run rich. the fuel pressure regulator is there for that purpose.