silly question - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

MyFirst240SX · 09-10-2003, 12:51 AM

How important is the Oxugen sensor on the exhaust manifold? the wire got cut off from it a month or so ago, and i havn't gotten around to fix it yet. im starting to have some sputering and hesitatoiin with my car now. I also now have 3 leaky injectors i need the seals for. I think thats causeing the issues, but any ideas?

240Stilo · 09-10-2003, 01:44 AM

Hopefully someone else will chime in on this too but I think that sensor sends info to the ecu on how lean or rich the engine is running and then compensates. Without it I guess it kinda just makes the ECU take stabs in the dark as to how to manage the fuel.

*Sil-Abc* · 09-10-2003, 03:19 AM

yea thats what i heard too. the sensor sends info to the ecu about how much fuel to use and how rich or lean it should go. its really important to get that thing fixed. id fix it soon if i were u.

kkw4p · 09-10-2003, 05:09 AM

The injectors can be fixed by replacing the o-rings. And yes, the O2 sensor sends info the ECU, and that's probably why you're running rich and sputtering.

MyFirst240SX · 09-10-2003, 11:42 PM

Thanks for the input guys

09-10-2003, 12:51 AM	#1
MyFirst240SX Zilvia Junkie Join Date: Dec 2001 Posts: 599 Trader Rating: (0) Feedback Score: 0 reviews	silly question How important is the Oxugen sensor on the exhaust manifold? the wire got cut off from it a month or so ago, and i havn't gotten around to fix it yet. im starting to have some sputering and hesitatoiin with my car now. I also now have 3 leaky injectors i need the seals for. I think thats causeing the issues, but any ideas? __________________ It is better to drive a Slow car fast than to drive a fast Car slow! '89 FastBack 5spd: Intake/Exhaust,Strut Bars and JL15. '90 Parts car/Some day drag car.

09-10-2003, 01:44 AM	#2
240Stilo Junkie Join Date: May 2002 Location: Socal Age: 41 Posts: 1,160 Trader Rating: (0) Feedback Score: 0 reviews	Hopefully someone else will chime in on this too but I think that sensor sends info to the ecu on how lean or rich the engine is running and then compensates. Without it I guess it kinda just makes the ECU take stabs in the dark as to how to manage the fuel. __________________ -Juan

09-10-2003, 11:42 PM	#5
MyFirst240SX Zilvia Junkie Join Date: Dec 2001 Posts: 599 Trader Rating: (0) Feedback Score: 0 reviews	Thanks for the input guys __________________ It is better to drive a Slow car fast than to drive a fast Car slow! '89 FastBack 5spd: Intake/Exhaust,Strut Bars and JL15. '90 Parts car/Some day drag car.

09-10-2003, 03:19 AM	#3
Sil-Abc Premium Member Join Date: Jul 2003 Location: Downtown LA Age: 39 Posts: 2,549 Trader Rating: (13) Rides Gallery: Sil-Abc Feedback Score: 13 reviews	yea thats what i heard too. the sensor sends info to the ecu about how much fuel to use and how rich or lean it should go. its really important to get that thing fixed. id fix it soon if i were u.

09-10-2003, 05:09 AM	#4
kkw4p Join Date: Sep 2003 Location: P'Cola, FL Posts: 15 Trader Rating: (0) Feedback Score: 0 reviews	The injectors can be fixed by replacing the o-rings. And yes, the O2 sensor sends info the ECU, and that's probably why you're running rich and sputtering.