[rjc]

Hello,
Buying a motor a motor out of a 2003 and replacing one in my 1999. only difference I've notice is late 99 then went to roller. question I have. Will I be able to use my harness/computer and be a direct plug in? Any Info greatly appreciate.

Thanks

 

[Rebel n Dirt]

You will have to use the intake and all topside equipment from the 99 for it to work. Everything else should be the same, or close enough to work.

 

[rjc]

I bought the motor and I noticed the knock sensor connectors at totally different. I used my intake and everything else plugs in. Also on the motor it has an extra sensor on the oil pan which I'm assuming is a low oil sensor. mind did not have that. so I should be ok there.

Could I run without the knock sensor or can I splice connector to fit?

Thanks

 

[oldeerslayer]

Kinda hard to splice 1 wire into 2 places. The designs and operation are completely different as are the 99 and 03 PCM's and operating systems.
One wire sensor is a resonate sensor.
Two wire sensor is a flat response sensor.
You have to use the KS that matches the PCM and OS you are running.

But all is not lost, read this:

knock sensor conversion

I have swapped a 1999 4.3 ltr block with a 2003 4.3 ltr block, has anyone converted the 2 wire knock sensor to the single wire sensor for the 1999 s10 4x4.I would appreciate any help with this matter thanks

www.s10forum.com