Another A/F sensor issue

K-Series Programmable ECU installation questions / support issues
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cukali
Posts: 37
Joined: Thu Apr 27, 2006 10:48 am

Another A/F sensor issue

Post by cukali »

I have read what I could find on A/F sensor and I think I may have damaged my ECU. My sensor was damaged severely (physical damage) and my cel came on. I replaced with another that had to be spliced (was a honda sensor) and it worked. I then pulled it out and to make it more permanent by soldering the connectors into the original plug. I screwed up and I believe I got the two black wired crossed. Now, it is not working either way and I seen where you said it can/will damaged the ECU.


1) How can I tell if my ECU is damaged?
2) Are all Honda widebands the same? (I can get a junkyard CRV/Accord for cheap but no Si available)
3) How about RSX? Are they the same?
4) Cost of used and or new ECU?


thnx
Razathorn
Posts: 469
Joined: Tue Jun 14, 2005 12:17 am
Location: Lenexa, Kansas, USA

Post by Razathorn »

You can use sparkplugs.com's online shopping site to check what sensors in what cars are the same ;). Just lookup the 02-04 rsx type-s front sensor part number and then you can look it up on the other cars to see if it's the same. If I recall correctly, the CRV, 02-05 civic si, and 02-04 rsx type-s and base all use the same sensor. I could be wrong however, so do check and or wait for hondata's reply. You can also use estore.honda.com to cross reference sensor part numbers -- it's very handy as well.

Wayne
2003 black RSX type-s / jrsc @ 12psi / methanol injection / aftercooled
dark2k1
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Joined: Mon Feb 26, 2007 10:51 pm
Location: Quebec, Canada
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Post by dark2k1 »

You maybe just burned a fuse of your AF heater relay (if you have one)... if not, you porbably burn the heater relay.

But the CRV and Accord doesn't have wideband AF sensor .
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Spunkster
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Joined: Fri Sep 20, 2002 5:06 pm
Location: Hondata

Post by Spunkster »

Try your ecu in a known working car (RSX or SI). This will tell you if the ecu is damagedc or it is a wiring problem.
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