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Old 12 Nov 2006, 09:08 pm
Abeness
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Default 1994 Civic EX 5MT: DTC 41 (O2 sensor heater)

Hi, folks. Haven't been here in a while. Combo of excellent previous
advice here that got me through a couple of repairs, plus the first baby
in the family--boy now 5 mos. and super cute!--and a move. ;-))

Anyhow, my MIL (check engine light) indicates a DTC 41. 128K miles.
"Primary oxygen sensor heater." Cleared and confirmed. [Thanks Tegger
for caching that excellent OBD I code retrieval PDF.] I haven't yet gone
through the testing procedures in my Helm manual--still gotta find my
meter after that aforementioned move--so I won't be replacing the O2
sensor before that, but I'm curious: I saw a post from Randolph from
back in 2003 that suggested success with a generic aftermarket sensor.
Is OEM is any better than aftermarket in this case? I stick with OEM for
mechanical stuff. Can't say which is there now, or whether it's ever
been replaced; I bought the car used.

If it turns out that I need the O2 sensor, I don't terribly mind $182
for the one here:
http://www.hondaautomotiveparts.com/...NIFOLD+%282%29
It will save me a splice on stainless steel wire. Here's hoping it's
merely a dirty connection...
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