97 Sidekick Sport 1.8L - CUTS OUT AT 1/4 THROTTLE

[fixkick]

Is there a test I can do on the front 02 Sensor ? ........ Impedance?

Update, I just found your page on 02 sensors.

the best test, is hot idle, and the 02 scan plot, see on your new scan tool
the heater can be tested 2 ways
current draw, 1amp, using and amp clamp meter on just 1, heater wire.
or dead cold, unpugged, the heater pins show about 12 ohms or so, 0 is shorted, infinity is dead open, bad.
the heater element inside can short to CEL side, causing grossly reading wrong CELL, the o2 side is like a timing battery cell, thus the name
the o2 sensors can be tested with a scope, i bet you dont have that, nor is it needed, the scan tool does that.

use the scan tool.. watch the 02 swings.
if its dead, the heater is blown out, or the CELL is dead, heck never seen any 20 year one ever, not dead.
the scan tool at hot idle shows the swing, about 6 times a second, if not 02 dead, or exhaust cracks near the O2, causing it to lie.


guess what, here is my china scan tool, like yours doing exactly this tests
MS509, 3 or 4years old, one of the first ever sold.