Alun Jones

Just posting an update. After getting a mechanic friend to dismantle everything to get at the sensors, it was apparent that the wiring harness to both sensors was badly corroded, as well as the tag in the sensors. While I may have got away with just a harness, the amount of work to dismantle again would not have been worth the risk. Bit the bullet and bought 2 genuine knock sensors from Lexus as well as wiring harness, gaskets and a bypass hose at £560 ( plus £275 labour and new coolant at a mate rate ). Car is running really well again with no errors even after a few weeks. Thanks to everyone for your comments.

I guess this has been asked may times previously. Lexus RX300 2005 3.0V6 petrol AWD I have errors P0325 and P0330. sensor 1 has been intermittent for a while, now 2 causing issues. When errors occur. the car is loosing power and transmission acting strangely so assume both sensors need replacing. I'm struggling to find the OEM sensors on the web ( and guess genuine will carry a hefty premium ) but Autodoc are listing some Hearth+Buss, Meat&Dorta and AutLog, alternatives ranging from £30 to £60 each Any recommendations which of these might be a good choice? due to the manhours involved in changing, I'm hoping to do this only once.