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Old 08-29-2018, 07:57 PM   #1
Scooby Newbie
Member#: 480004
Join Date: Jan 2018
Chapter/Region: NESIC
2017 WRX
WR Blue

Default Knock sensor TSB '17 WRX?

Does anyone know if there is a TSB for knock sensors on the 2017 WRX?
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Old 08-30-2018, 11:59 PM   #2
Elbert Bass
Scooby Specialist
Member#: 283429
Join Date: May 2011
Chapter/Region: South East
Location: Down yonder.
2016 Fuji Sunfire 03


Yup. TSB 07-133-18 Knock Sensor Design Change, DTCs P0327,
P0328, P0332 and P0333
If you have those codes you still must diagnose the codes per the service manual - replacing the sensor may not be the fix.

If the last 8 of the VIN is H*830255 (star digit can be any number or letter) Then you have the redesigned part from factory.
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