[DeTomaso] NPC Check Engine Light

[Will Kooiman]

Before trying a universal sensor, I would check other sources.  If you were
quoted $287 from Honda, Autozone or Napa might charge $100.  Just make sure
it is name brand.

You could also try ebay and Google as others have suggested.  I've heard of
a parts store on the web, similar to summit, but with normal car parts.  I
don't have the link handy, but if you find it, that's another idea.

-----Original Message-----
From: detomaso-bounces at realbig.com [mailto:detomaso-bounces at realbig.com] On
Behalf Of Art Stephens
Sent: Friday, October 07, 2011 12:31 PM
To: Doug Braun
Cc: detomaso at realbig.com
Subject: Re: [DeTomaso] NPC Check Engine Light

Thank you Doug. At $287 for a new sensor, I might just try splicing in a $30
universal sensor?

Art



From: Doug Braun 
Sent: Friday, October 07, 2011 10:09 AM
To: Art Stephens 
Cc: detomaso at realbig.com 
Subject: Re: [DeTomaso] NPC Check Engine Light

Art, 

The mechanical shock from the rock can damage the sensor without any visible
damage.  First thing I'd try is to buy a new sensor and install it.  The
worst that will happen is you'll have a spare sensor.  Besides, sooner or
later, that sensor is destined to wear out.  If the new senor doesn't fix
it, suspect the wiring as it may have been damaged by the rock.  

PS: The "secondary" name for the sensor likely means it's one of two that is
farther downstream in the exhaust and likely after the catalytic converter.
It purpose may only be to tell the ECU when the cat is lit.

Doug Braun
blue 73L #5505


On Thu, Oct 6, 2011 at 4:55 PM, Art Stephens <artstephens at verizon.net>
wrote:

  Hello guys,
  I was driving my new Honda CR-Z  Hybrid thru Death Valley the other night
when I came around a curve and found a rock in the middle of my lane. I
wasn't able to avoid it so I straddled it but it was too tall and banged up
the bottom of my car. As soon as that happened I got a check engine light
which turns out to be a Secondary HO2S Circuit Fault (sensor2), O2 sensor as
near as I can figure. I can see no apparent damage to the sensor but the
muffler has a big dent in it. Is the dented muffler the likely cause of the
problem, increased heat due to the restriction, or does the circuit fault
mean there is no signal from the sensor, or something else? I know if I take
it to the dealer that they will want to replace the muffler and tail pipe
for a thousand dollars and still no guarantee of solving the problem. Any
thoughts?

  Thanks,
  Art


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