02 civic ex, 02 sensor problem after 05 HX engine swap
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02 civic ex, 02 sensor problem after 05 HX engine swap
So I killed my 2002 Civic EX engine and swapped it with a 2005 civic HX. Car has been running great with the new engine after I swapped the ECU. Only problem is I am using the ex exhaust and when I swapped the 02 sensors on ,bank 1 sensor 1 ,and bank 1 sensor 2 then check engine light came on and dose not go away even after swapping for new sensors. So my question is there a wiring difference between the 2002 civic 02 sensors and the 2005 civic.
And I am using the ex exhaust on the HX engine.
And I am using the ex exhaust on the HX engine.
Joined: Aug 2003
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Re: 02 civic ex, 02 sensor problem after 05 HX engine swap
03-05 uses a wideband downstream (unsure about upstream) O2 sensor. 01-02 uses narrow band.
Joined: Aug 2003
Posts: 21,620
Likes: 1,252
From: Las Vegas, NV
Rep Power: 512 Re: 02 civic ex, 02 sensor problem after 05 HX engine swap
swap in 05 sensors and you should be fine. Same connectors, same threads, different sensor portion. Wideband sensors will be significantly more expensive, just saying. Also, the D17 doesn't play nice with "universal" splice your own wiring sensors. Buy plug and play ones
Joined: Aug 2003
Posts: 21,620
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From: Las Vegas, NV
Rep Power: 512 Re: 02 civic ex, 02 sensor problem after 05 HX engine swap
ecu vs sensors.
Just so we're on the same page, 05 engine, 05 ecu, 02 wiring harness, 02 sensors?
Just so we're on the same page, 05 engine, 05 ecu, 02 wiring harness, 02 sensors?
If you think a good mechanic is expensive, try hiring a bad one
Joined: Dec 2011
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From: Midwest. Aiming about mid-chest
Rep Power: 519 Re: 02 civic ex, 02 sensor problem after 05 HX engine swap
The HX ECM (or pcm) should be looking for THREE different oxygen sensors, so you will never get rid of all the fault codes.
