What the hell does this CEL mean?
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From: Seattle, WA, USA
What the hell does this CEL mean?
This is on a 99 Prelude with a Greddy 18G turbo, I am just using the Greddy blue box for managment. I get this CEL as soon as I start the car up, I have no clue what is means:
41 - Primary Heated Oxygen Circuit
Detection Item: Circuit Malfunction
Probable Cause: Open or short in Primary HO2S sensor heater circuit ECM
Any ideas?
41 - Primary Heated Oxygen Circuit
Detection Item: Circuit Malfunction
Probable Cause: Open or short in Primary HO2S sensor heater circuit ECM
Any ideas?
Thread Starter
Senior Member
Joined: Mar 2004
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From: Seattle, WA, USA
Re: What the hell does this CEL mean? (RotiEatter)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by RotiEatter »</TD></TR><TR><TD CLASS="quote">You need a new 02 sensor</TD></TR></TABLE>
Hmmm. Any idea why it would have gone bad? I have a 3" exhaust and high flow cat, and it has been smelling like **** lately.
Hmmm. Any idea why it would have gone bad? I have a 3" exhaust and high flow cat, and it has been smelling like **** lately.
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Joined: Apr 2003
Posts: 9,051
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From: Bay Area, CA
Re: What the hell does this CEL mean? (boostedcivicsir)
also could be the o2 sensor wiring.
check that, make sure it is in good condition all the way through,
and that it hasn't shorted out anywhere.
if you have a multimeter, you can just do a continuity test.
hook up one test lead to one end of the wire, and one to the other end.
if continuity is good, then you know the wire is solid all the way through.
in which case i'd guess it was the o2 sensor.
check that, make sure it is in good condition all the way through,
and that it hasn't shorted out anywhere.
if you have a multimeter, you can just do a continuity test.
hook up one test lead to one end of the wire, and one to the other end.
if continuity is good, then you know the wire is solid all the way through.
in which case i'd guess it was the o2 sensor.
Honda-Tech Member
Joined: Nov 2003
Posts: 3,613
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From: Las Vegas, nv, lv
Re: What the hell does this CEL mean? (Tad)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Tad »</TD></TR><TR><TD CLASS="quote">also could be the o2 sensor wiring.
check that, make sure it is in good condition all the way through,
and that it hasn't shorted out anywhere.
if you have a multimeter, you can just do a continuity test.
hook up one test lead to one end of the wire, and one to the other end.
if continuity is good, then you know the wire is solid all the way through.
in which case i'd guess it was the o2 sensor.</TD></TR></TABLE>
check that, make sure it is in good condition all the way through,
and that it hasn't shorted out anywhere.
if you have a multimeter, you can just do a continuity test.
hook up one test lead to one end of the wire, and one to the other end.
if continuity is good, then you know the wire is solid all the way through.
in which case i'd guess it was the o2 sensor.</TD></TR></TABLE>
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