HX oxygen sensor help
Thread Starter
Joined: Dec 2003
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From: tacy, ca, usa
HX oxygen sensor help
i had engine code 41 so i replaced the primary o2 sensor ( had 215,000 miles 
) i looked for a replacement and found that nkt o2 sensors are stock and that L1H1 is the stock sensor and i verified it by looking at the sensor and had L1H1 stamped on it.
now i have seen that the sensor had been updated to L2H2 and that the only diff was shorter wire harness. so i bought a L2H2 and installed it . but now i have check engine code 61 primary o2 sensor?
is the l2h2 not compatible ? it plugs right in. any help i would appricate it
) i looked for a replacement and found that nkt o2 sensors are stock and that L1H1 is the stock sensor and i verified it by looking at the sensor and had L1H1 stamped on it. now i have seen that the sensor had been updated to L2H2 and that the only diff was shorter wire harness. so i bought a L2H2 and installed it . but now i have check engine code 61 primary o2 sensor?
is the l2h2 not compatible ? it plugs right in. any help i would appricate it
Honda-Tech Member
Joined: Oct 2002
Posts: 5,152
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From: chicago burbs, Il, USA
L1H1 and L2H2 are swappable. I've run both in VX's with no problems.
did you buy the L2H2 new?
Either you didn't reset the ECU after swapping in the new O2, you didn't get the O2 plugged all the way in, or the O2 itself is bad.
did you buy the L2H2 new?
Either you didn't reset the ECU after swapping in the new O2, you didn't get the O2 plugged all the way in, or the O2 itself is bad.
Thread Starter
Joined: Dec 2003
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From: tacy, ca, usa
Re: (Relic1)
well i unplugged the ecu while i did and oil change and swapped o2 sensors ..then drove around and cel came on. .. last night i disconnected the battery all night and drove it to work today .. no cell thus far .. so i guess that was the problem . thanks
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Joined: Sep 2003
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From: Salt Lake City, UT, USA
Re: (turbo gli)
I'm having the same exact problem on my HX. My car was running like poo (felt like it was bogging, or surging if I held the gas pedal steady at 50ish mph) and bought a NTK 5-wire sensor on ebay......
Seems to have fixed the problem, as my car runs much better, and I never had a cel before, but after I put the new sensor in, I have a cel now. But like I said, the car runs much better.
I scanned it and it said 'primary o2 circuit malfunction'. I checked the pinout from the female to the male end of the plug, and everything seems fine. One thing I noticed though is that there is 2 pins that connect to each other on both the old and new sensors, with a resistor inline. My old sensor read .29 ohms or something, and the new one read 2.29 or something along those lines. I can't remember, but I know they were way off from each other. I replaced the new resistor with the correct value of the old one, reset my ecu and had no luck.
So I'm stuck as of right now, but oh well, car runs smoother.
Seems to have fixed the problem, as my car runs much better, and I never had a cel before, but after I put the new sensor in, I have a cel now. But like I said, the car runs much better.
I scanned it and it said 'primary o2 circuit malfunction'. I checked the pinout from the female to the male end of the plug, and everything seems fine. One thing I noticed though is that there is 2 pins that connect to each other on both the old and new sensors, with a resistor inline. My old sensor read .29 ohms or something, and the new one read 2.29 or something along those lines. I can't remember, but I know they were way off from each other. I replaced the new resistor with the correct value of the old one, reset my ecu and had no luck.
So I'm stuck as of right now, but oh well, car runs smoother.
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Thread Starter
Joined: Dec 2003
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From: tacy, ca, usa
wich sensor did u buy on ebay?? more resarch and i found that we HX users need ntk pn 24300 not 24302 . the l2h2 is ntk pn 24302. so im seeing if i can return my sensor and get the correct 24300 sensor
Honda-Tech Member
Joined: May 2005
Posts: 1,368
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From: Buffalo NY/Fort Bragg NC
Re: (turbo gli)
I'm having the same exact problem on my HX. My car was running like poo (felt like it was bogging, or surging if I held the gas pedal steady at 50ish mph) and bought a NTK 5-wire sensor on ebay......
Seems to have fixed the problem, as my car runs much better, and I never had a cel before, but after I put the new sensor in, I have a cel now. But like I said, the car runs much better.
I scanned it and it said 'primary o2 circuit malfunction'. I checked the pinout from the female to the male end of the plug, and everything seems fine. One thing I noticed though is that there is 2 pins that connect to each other on both the old and new sensors, with a resistor inline. My old sensor read .29 ohms or something, and the new one read 2.29 or something along those lines. I can't remember, but I know they were way off from each other. I replaced the new resistor with the correct value of the old one, reset my ecu and had no luck.
So I'm stuck as of right now, but oh well, car runs smoother.
Seems to have fixed the problem, as my car runs much better, and I never had a cel before, but after I put the new sensor in, I have a cel now. But like I said, the car runs much better.
I scanned it and it said 'primary o2 circuit malfunction'. I checked the pinout from the female to the male end of the plug, and everything seems fine. One thing I noticed though is that there is 2 pins that connect to each other on both the old and new sensors, with a resistor inline. My old sensor read .29 ohms or something, and the new one read 2.29 or something along those lines. I can't remember, but I know they were way off from each other. I replaced the new resistor with the correct value of the old one, reset my ecu and had no luck.
So I'm stuck as of right now, but oh well, car runs smoother.
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