hello.

Unfortunately, my car engine already stopped working.

So I decided to replace the other.

I installed the engine but it turned out that in my old engine was the sensor, and the sensor is a new engine.

From what the mechanic told me the engine is from 2003 and I have a car from 1999.

I have a question when you change the engine later if I need to replace:

- how to mount or what to do with the new/old sensor?

- or replace the oxygen sensor from 1999 to 2003?

- if computer fits the newer engine new 2003 old ist 1999

As for the present moment, this car drivin ', but at the start I have to wait a few minutes the engine to run well.

thx for help

chevrolet blazer 1999 4.3L v6 4x4

 

What type of car? what type of engine? - details please!

 

How about narrative, I have no idea what your talking about.

 

I think they are talking about the difference in sensors on the engines between 99-03. Which is a valid question, its been gone over on here a few times, however i don't remember which ones are different

 

Hes using a newer engine,which has a different style knock sensor. If you are still using the 99 wiring and computer,use the sensor from the 99. Thread and bolt size should be the same as the newer,if not you might beable to get a adapter from ace hardware etc to make it work. It senses vibration. The adapter might work. Just get a brass fitting etc.

 

exactly

sorry but i use google translator

speaking forth out better than I write but I'm still learning

my old sensor, mechanic somewhere lost and I have to buy a new one for the 1999 model.

thx for help

 

Up to sometime in mid-01 (or was it mid-02...), the knock sensor thread was 1/4" NPT (national pipe tapered) and were a single wire sensor. It then changed to bolted on sensor two wire sensor.

You will not find an adapter to go from the straight thread bolt hole to a tapered thread hole. You could fabricate one that would have a counter-sunk through hole for a socket headed cap screw that would thread into the block and on the other end have the 1/4" NPT thread for the single wire knock sensor. Attached is a quick sketch of the adapter I described above.

I am not sure if anyone has tried just grounding one side of the two wire sensor using the standard harness connector, then hooking up the other wire to the stock single wire that runs back to the PCM. I am not sure if this would work, but it could possibly be cheaper than fabricating an adapter and would certainly be easier if it works out properly.

 

thx for help