Knock knock

[Austin Calise]

The original brown plug knock sensor is either NLA or expensive I just use the green plug knock sensor in it's place bosch pn# 0261231038 about $25 from autohausaz or gowesty The brown one is pn# 077905377A rockauto has standard motor products version or airtex/wells for $100 bosch pn# for the brown one is
0261231040 can be found on ebay.co.uk and maybe some other sources in the US. google it. The blue sensor is bosch 0261231036.