Eats gas like V8 5.0L
Thread Starter
Registered User
Joined: Jul 2006
Posts: 80
From: NJ
Eats gas like V8 5.0L
I have a 1995 240sx however it eats gas like v8 5.0L
I can figure out what is the problem I change fuel filter I put in fuel filter from 300zx, oil change etc……… however I had full tank of plus gas yesterday and I drove 120 miles “highway” and my car eat half of the tank that can be good and I was not pushing it at all.
If any body can help me to figure out what it is that would be great.
Thanks:
I can figure out what is the problem I change fuel filter I put in fuel filter from 300zx, oil change etc……… however I had full tank of plus gas yesterday and I drove 120 miles “highway” and my car eat half of the tank that can be good and I was not pushing it at all.
If any body can help me to figure out what it is that would be great.
Thanks:
Contributing Member
Joined: Oct 2002
Posts: 593
From: arlington texas
Originally posted by Darkvillin
just personal curiosity, what would an o2 sensor do to the gas mileage? please dont take offense to the question.
just personal curiosity, what would an o2 sensor do to the gas mileage? please dont take offense to the question.
Registered User
Joined: Aug 2006
Posts: 1
From: Sykesville, MD
A 02 sensor is located in the Exuast Manifold. It Relays the Air to fuel Mixture to the motor. If its bad it will Tell the computer the car is running Lean and add more gas. Thus killing your gas mileage.
Registered User
Joined: Oct 2005
Posts: 155
From: New York
like i told the other guy with bad gas mileage, this is something you should bring to a dealership. and ask them to hook it up to an exhaust gas analyzer which will tell you if your running in a rich, lean, or misfire condition...and then have them hook it up to a scope and check all the sensors, and then you will have an accurate why ur car is doing that...the amount of fuel used is determined by so many factors, you could have a bad vacuum leak, air bypassing the maf or speed density sensor causing your 02 sensors to sense a lean condition and dump more fuel, could be a bad 02 sensor, it could be a egr vavle open or stuck closed, it could be a bad tps sensor...like i said there are alot of things to check be smart and spend the money b4 something goes horrible wrong with your motor
Contributing Member
Joined: Oct 2002
Posts: 593
From: arlington texas
Originally posted by epp_b
If, by 02 sensor, you mean "mass airflow sensor" (one and the same thing?), I think the engine light would be on.
If, by 02 sensor, you mean "mass airflow sensor" (one and the same thing?), I think the engine light would be on.
Registered User
Joined: Aug 2006
Posts: 254
From: Canada
The mass airflow sensor is mounted right after your air filter and the o2 sensor is mounted to the exhaust or headers. so, no they are not one in the same. hope this helps.