jewbacca

Hey guys
I recently swapped a JDM H22 into my 92. Got 41 code from my ECU, fine - change the o2 sensor. No dice.
Any thoughts?
Would it have something to do with RHD engine in LHD car?

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Absolut

Did you install a new 02 sensor or swap in another?

If new, check your wiring... Could have been damaged in the swap.

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Jason

marcucci

As mentioned... wiring is my only answer. There should be no difference in the O2 sensors from JDM/USDM or LHD/RHD.

Did you use the new ECU? Is it barking about a primary or secondary O2 sensor? If the ECU is '97 or newer (even if JDM) it might be looking for a secondary O2.

jewbacca

I'm using my old ECU. Old sensor gave me a 41, so I went to my shop and got a new one. Perhaps my old sensor was defective, but I know the new one works, I made them slap it on a prelude they had there quickly, and CEL didn't come on. You think I'm going to have to get a new ECU?

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marcucci

No, I would ohm out the wiring and make sure nothing got crimped or cut on the install. I'm not aware of any differences in the ECUs or the motors, but I'm not 100% on that.

jewbacca

Grrrr...
This is startin to piss me off I put my old h23 ecu in, and the CEL is still on. I gotta see if I can get me a helms...

__________________
And I got punched in the balls........by some guy named Cock-Knocker!

marcucci

OHM OUT THE WIRING!!!

93si4ws

he might not know what this means.

you need to check continuity and resistance in the wiring. like mentioned, during install, some of the wires could have been crimped, cut, or mangled. checking continuity will tell you if one or more wires in the circuit are open(cut). checking resistance according to spec will tell you if the appropriate voltage signal is getting back and forth to the ecm and sensor.

v

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vern - 93 jdm 2.3vtec 4ws
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jewbacca

O.K. cool
Does anyone happen to know proper numbers I should be getting when I check o2 sensor wiring?
I've got to see if I can track down an ohmometer, its not something a guy like me uses everyday, hehe

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And I got punched in the balls........by some guy named Cock-Knocker!

marcucci

You can pick up a cheap multimeter from Radio shack or another electronics store. Set it to resistance (<10) and you want to read something less than an ohm. Anything more than a few ohms and it might be a problem.

jewbacca

O.k, do I have to put 1 line on the o2 sensor side and 1 on the ECU side?
Or is there an easier way?

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marcucci

It's the easiest way. You can usually reach both with the door open.