Topic: Knock sensor.

[Tice]

So I was thinking about this today mainly because I don't have one on my engine. The EFI set-up is from an 87 runner. I thinking it is suppose to have one. Right? Partsamerica's site show one availible for an 87.  If so what's the bad side of not running one?

[Marlin]

Check engine light will come on, and the computer will be unable to adjust the timing as required. You will experience a power loss and poor fuel mileage.

The sensor is located above and in front of the starter.

[Tice [OP]]

Thanks Marlin. I did some searching in the manual and it does show one. I do have a serious lack of power too. Guess I will be on a quest to find one.

[Tice [OP]]

Ok so I found a sensor, in my tool box of all places, I knew I had one. Now this is my problem, My motor is from an 84 and it doen't ahve a "port" for the sensor on the block, I know where it's suppose to go. How can I attach this to the block to make it work? I've thought about welding a Bung or nut but welding to cast is tricky and I really don't want to weld to the block anyhow. Also, can someone snap a pic of theirs? I want to make sure I have the right wire for it as well. Of all the left over wires after the EFI swap none have the right plug. Though the one I suspect to be right has no plug at all.  I really don't drive this on the road alot, but if this is the main reason why I have no power then I'd like to remedy it.  I really close to going propane but with EFI theres really no good reason to me. Any and all help is greatly appreatated.

[Marlin]

Got your answer right here

Remove the rear top passenger side motor mount bolt and weld a 12 x 1.25 mm nut on the top of the 14mm head of the 10 x 1.25 mm motor mount bolt. Reinstall the bolt using a 17 mm socket, and then bolt on the knock sensor. The wire will simply plug into the sensor without making it longer.

I have done this many times with perfect sucess.