I want to run a test pipe on my ka24de. Do I need an o2 sensor for it and will there be any problems? Will I need a resistor?

 

where do you live, what year is the engine, and how many O2 sensors are there on your particular car (before or after the cat)?

 

my car is a Canadian 91,ka24de,not sure how many o2 sensors there are,i know theres one for sure on the header and one on the cat

when running a test pipe do i need to plug in the o2 sensor or do i leave it unplugged?

 

plug it in! they are there for a reason. go to a shop get a 12 1/2" pipe bent with two flanges on it and ask them to weld a o2 sensor bung on the testpipe near the same location the original one was, it's not that hard.


EDIT:
P.S. where are you from in canada?

 

i know DSM's don't need it but i'm sure the car runs better with it.

 

won't it get wrong readings in a test pipe? since its not heating up?

 

that is where mine is, and it runs fine

if you have an exaust leak before the test pipe it will make a difference on how well it reads the exaust gas.

 

I have a 92 ka24de. But mine only had the one oxygen senson in the exhaust mani. Why is there a difference between the 91 / 92?

TJ