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Old 03-17-2009, 04:49 PM   #1 (permalink)
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Default Swapping ex motor into lx

So a buddy of mine was trying to do some research, and i just figure i'll ask here for good measure.

It seems you have to wire up another o2 sensor when doing this "Swap" - Does anyone know if the lx's harness is already prewired for the second o2, or does one have to run wires all the way through to the ecu and pin the connector?

All help appreciated.
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Old 03-17-2009, 07:50 PM   #2 (permalink)
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if its a d17.. the lx and ex have the same o2 sensors if the engine is 01-03 or 04-05. the later years have a wideband factory and the earlier ones just have 2 narrow band o2's.
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Old 03-17-2009, 08:22 PM   #3 (permalink)
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Quote:
Originally Posted by baron340 View Post
if its a d17.. the lx and ex have the same o2 sensors if the engine is 01-03 or 04-05. the later years have a wideband factory and the earlier ones just have 2 narrow band o2's.
true...

the ex just have the vtec wires, and the 01 LX/DX doesn't have EGR
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Old 03-18-2009, 08:36 AM   #4 (permalink)
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the 02 dx/lx doesnt have egr either
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Old 03-21-2009, 08:44 AM   #5 (permalink)
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ex an lx both have O2 sensors
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Old 05-02-2009, 09:30 AM   #6 (permalink)
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So what was decided on this becuz i have an 05 lx and was wonderin about this exact swap. I have an ex head pnp, ex ecu. do i need anything else?? i already know i'll have to tow it to the dealership to get the key reflashed.
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Old 05-03-2009, 04:42 AM   #7 (permalink)
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You will need engine management if you have a PnP head. Stock ECU is not going to be able to take advantage of the porting and neither will the stock cam.
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