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

[fixkick]

i think he needs 3 things
1:time
2:learn now EFI works.(For sure how 02 closed loop works and LTFT)
3:lean how his scanner works.


in this case, he asks it to scan, 02. in live data scan mode,(called PID scanning)
then presses the graph/plot button and bingo.

id just buy a new sensor, for $36, the universal connector version works and is cheap. my buy parts page covers that.
bosch # nnnnnn-4, the 4 I added for 4 wires.
PNP is 15287-4
universal is.15729-4
15729
https://www.amazon.com/Bosch-15729-Oxyge...B000BZL080
seen on ebay
or even
walfart
https://www.walmart.com/ip/Bosch-Oxygen-...9/34176839


the PNP (easY) can cost 3 times more.
my page shows the color codes for all suzuki and all sensors made

here is my cheat page on 02.
colors /pins and all
all ways to cut this fat hog.
all this on my 3 pages, 02
cheat sheet 1.

http://www.fixkick.com/sensors/O2%20sens...lors1.html

rule 1, each maker of sensors can use any colors they want and DO.
rule 2: Suzuki in there infinite wisdom, use may colors. on harness, a Royal PITA this. but i have tables.
rule 3, bosch invented it,why waver from best.... and costs less too.. hark. NGK great,but$$$$$


this page cover all suzukis for over 16 years. 89 to 2005?
http://www.fixkick.com/sensors/OxyGen_se...ch-sensors

to do this right tell me your 4 wire colors on your j18 harness side, 02 front
i can match those to any sensor made

...
.the 02 is in fact a 100,000 tune up part, pretending its not, is not wise,nor spending weeks doing endless tests.
in fact there no off car O2 tests that prove its ok (heater not blown) you can not test a sensor for Poisoned. (nor off calibration, only Bosch labs can)
dig?

only scans help.


now B1 S1,(bank 1 sensor one,,, ) this sensor sets fuel mix, job1
the sensors are off line, accelerating or WOT.
that is why I asked over and over, what does the misfire do WHEN misfring, if you slam the throttle down?
that slamming causes ECU ENRICH mode, a key diagnostic tool (free of cost) on all EFI cars.

all good tools do this, ALL!




here is my INNOVA, 3160 in action
Im scanning live data, then i force the tool to scan ONLY B1S1
then i press the graph button and below. a live scope (delayed, in time a tiny bit,who cares) VIEW.
the tool is just issuing the 02 PID command over and over, no magic,its just a OBD2 command,
the tool then digitizes and plots this data. as clearly seen above.

we see it not shifted, and swings fast,and is NOT DEAD.
if you had say exhaust leaks, it shifts lean, and the ecu ,now over injects the same amount as the 02 error presents.
air is 20% oxygen,so if 1% leaks in,that be HOPELESS.
the sensor measures deferentially but ill not go in to all that,but will say, no mud or grease on sensor allowed.period.(it must breath,air)

we look here here first.
why, well its what 1minute job
and 10minute to see all sensors live,.and go,Nero, thumbs up down?
and LTFT., WHAT IS that at idle.

long term fuel trim= LTFT
but if 02 is offset or dead, LTFT is useless data. (garbage in, nets garbage out,)(computers101)
short term fuel trim is to fast for humans to see,


the 02 is part of a SERVO loop
the PCm/ECU is the brains in this loop
the PCM hunts for perfect fuel mix,called STOICH.
endlessly, and near6 times a second. endless.
if and only if in CLOSED LOOP status.(look there firstfirst)

lets say fuel pressure was 60psi, closed loop will fail.. status and ALL
see?
the ECU CAN not adjust for GROSS errors.
nor for B1S1 exhaust cracks,
each putt, sucks in air, if you let it. answer, don't