Do I get the o2 sensor for the car/ecu or the engine?
03-06-2009, 04:19 AM
#1
Honda-Tech Member
Thread Starter
Do I get the o2 sensor for the car/ecu or the engine?
I have a 93 ex coupe with a p28 and a b16a2. My gas mileage has been really bad so I am going through the normal things that would cause this and trying to fix it. I already fixed a really bad vacuum leak, but i noticed the o2 sensor on there is a bosch and is for 93 ex. I asked this question to two people, one person told me i should have the o2 sensor for the engine and the other said it should be for the car. So which should it actually be for, also what brands do you recommend, I am thinking either ntk or denso. I don't want to pay for oem, so don't get on here and tell me that. But if you have experience with either ntk or denso i would appreciate if you could tell me how they worked for you. I tried searching this but couldn't really find anything to directly answer my question.
03-06-2009, 04:45 AM
#2
Seagull Management
Join Date: Jun 2008
Location: Miramichi, NB, Canada
Posts: 15,150
Likes: 0
Received 24 Likes
on
22 Posts
Re: Do I get the o2 sensor for the car/ecu or the engine?
Typically you buy the O2 sensor for the Engine and ECU (IE 4 wire O2 sensor for an ECU that looks for a 4 wire O2 sensor) Although most OBD1 and OBD2 D and B-series honda O2 sensors are interchangeable. Denso and NTK are both fine, Denso is actually the OEM manufacturer for Honda, Bosch sucks.
03-06-2009, 05:44 AM
#3
Honda-Tech Member
Join Date: Apr 2006
Location: B18c1, PA, usa
Posts: 420
Likes: 0
Received 0 Likes
on
0 Posts
Re: Do I get the o2 sensor for the car/ecu or the engine?
Typically you buy the O2 sensor for the Engine and ECU (IE 4 wire O2 sensor for an ECU that looks for a 4 wire O2 sensor) Although most OBD1 and OBD2 D and B-series honda O2 sensors are interchangeable. Denso and NTK are both fine, Denso is actually the OEM manufacturer for Honda, Bosch sucks.
03-06-2009, 06:08 AM
#4
318 Curves, 11 miles
Re: Do I get the o2 sensor for the car/ecu or the engine?
I'm running a d16y8 bosch I had laying around on my b18c1 now with no noticed difference from the gsr sensor that quit on me. Same mpg, same power. YMMV.
03-07-2009, 08:31 AM
#5
Re: Do I get the o2 sensor for the car/ecu or the engine?
Stupid question: Why do Denso and NTK each have different part numbers for the 4-wire O2 sensors for, say, a 93 Civic DX (D15B7 engine) and a 2000 Civic Si (B16A2)? I can pull up the photos of the end connectors at the Denso and NTK sites, and they look the same. Are the wire lengths the only difference? The price difference sure seems illogical. The 93 Civic DX 4-wire sensor costs $60. The 00 Civic Si costs $86 (half-inch shorter wire length). Is it likely a stocking thing?
Otherwise this is now making sense to me. The purpose of all O2 sensors is to provide a signal hovering around 0.45 volts depending upon the amount of oxygen in the exhaust. So this signal is about the same, regardless of what engine or ECU one has. Dunno if the heater varies much; all get battery voltage?
(Granted, for those doing swaps, adding wire to an O2 sensor with insufficient length is not advisable.)
Otherwise this is now making sense to me. The purpose of all O2 sensors is to provide a signal hovering around 0.45 volts depending upon the amount of oxygen in the exhaust. So this signal is about the same, regardless of what engine or ECU one has. Dunno if the heater varies much; all get battery voltage?
(Granted, for those doing swaps, adding wire to an O2 sensor with insufficient length is not advisable.)
Thread
Thread Starter
Forum
Replies
Last Post
4tika4
Honda CRX / EF Civic (1988 - 1991)
5
07-25-2009 05:23 AM
