I bought this 2002 sc430 with 82k miles 6 months ago have only used 6 times and have driven less than 100 miles mainly standing outside under cover.

All of sudden have slow acceleration and check engine light

had the codes read from auto zone it says both knock sensors bad

can someone tell me where they are located on the sc430 and is it easy to replace

many thanks for your help and advice

It is very rare that one knock sensor goes bad and astronomical that both go bad. I suspect that you have a different problem that is causes the knock sensors to malfunction. It is possible that your cat is plugged and causing this problem. Please post the exact codes that showed up on the scan and go from there...

THANKS FOR YOUR QUICK REPLY
THE CODES THAT CAME UP ARE P0325 AND PO330