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help needed: CEL codes keep coming back but I believe parts are good

Help, Advice, Owners' Discussion and DIY Tutorials on Volvo's stylish, distinctive "P2" platform cars.

2001 - 2007 V70
2004 - 2007 V70 R
2001 - 2007 XC-70
2001 - 2009 S60
2003 - 2007 S60 R

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Year and Model: 2001 V70
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Re: help needed: CEL codes keep coming back but I believe parts are good

Post by PatrickHenry » Fri Feb 07, 2020 4:26 pm

abscate wrote:
Fri Feb 07, 2020 8:21 am
. . . P0032 is the heater circuit in the front OXS, not the sensor readout . . . It might be another electrical fault is pulling the heater low and popping the P0032 . . . should show very close to B+ voltage with the key on in POS II
abscate, thank you for your continued help with this! I'll look into the wiring for my '01 re. what else is connected and ensuring the O2 sensor has sufficient voltage.

I've also ordered another O2 sensor (Denso) despite the present one (Bosch) only being about a year old. At this point I'm OK with dropping another $100 on a potentially unneeded part for the potential reward of making this all go away without spending all my future weekends probing under the hood with the multimeter. ;-)

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