2002 isuzu check engine light on

what engine, THE CAR IS A GM s10 IN DRAG.
4.3L v6 Vortec 4300, GM
2.2l i-4, OHV ENGINE. NOT ISUZU!!!

In 1996, Isuzu replaced its Pick Up with a version of the Louisiana-built Chevrolet S-10, the Isuzu Hombre, based on the Brazilian market S-10
so google the vortec 4300
here Ill type for you....

on most v6, its near the oil gallery , on a bank.
so that means if youd look on both banks , the one with the 1 wire sensor is it.
but not this v6
its here.
log in to mitchell's and read, its all there.

A v engine most fwd cyl Is number 1 see?

The engine is mounted transversely (sideways)-the front of the engine is on the passenger side where the serpentine belt runs. On the backside bank, bank one, closest to the firewall, are cylinders 1-3-5, from front of engine to rear. So number one cylinder is on the back bank, and nearest to the passenger side of the car (bank simply refers to which side of the engine on a v6 or v8, bank one or bank two. Bank one is always the side where the #1 cylinder is located, and bank two is the opposite side.) On the front bank or radiator side, bank two, the cylinders are 2-4-6, front to back of engine.

The firing order is 1-2-3-4-5-6, easy to remember.

MAKE SURE THE CONNECTIONS AT THE SENSOR ARE GOOD,ALSO CHECK FOR VACUUM LEAKS,HERE'S A LINK TO YOUR CODE,THE OLD SENSOR MAY BE GOOD,JUST A VACUUM LEAK, P1133 Chevrolet HO2S Insufficient Switching Bank 1 Sensor 1

are yous saying engine runs on 3 cylinders, (sure dead slow)?
great facts, so few post have actual facts or tests
but what engine, it's engine issues, which one?
must be v6, (left right bank)
but is it single or twin cam 24valves?
check all fuses first. (always)

lets see... one side has no spark, so did you scan he PCM while cranking for P03xx codes DTC errors. it will show them if you crank for 5 full seconds, and release the key , 90% of time.
and is a KEY fact in diagnosis, no need to fix cars like 1995 and older here. we use scan tools and win,.

left side has spark and fuel but is dead, so its flooding on that side.
right bank has no spark and no fuel.
you meant both sides dont fire. and engine does not run at all.
so what is wrong.
well I check spark first. is the timing good? if not the cam belt slipped. as all do , ignored.
5 min check and bam , OMG timings way off....
or check compression first. i do on all old cars.
for 2 reasons.
1:if compression is way off, the cam belt slipped.
2: if uneven , (done right) you go , gee, is this old car worth a rebuild? 13 years old, IMO , it is. but isuzu parts. hard to get?

do compression on #1 clylinder (or 3) first. if way off. bingo.
5 min work done WOT, wide open throttle.
bingo

line up
3.2 L 6VD1 SOHC V6
3.2 L 6VD1W DOHC V6 (w = 24v)
3.5 L 6VE1 DOHC V6

which one????????

knowing engine, tells the mech, what spark system is there and which of 2 fuel systems used.
see?
does engine have 1 coil pack with 6 lugs, or 6 cop coil packs.
see?

if compression is ok.
and one bank is dry.
that means the injectors are dead on one side.
and that means the PCM is seeing bad CMP sensor data.
some CMP can do that. but no engine stated.
SOme CMP sends camp pulses for all cylinders can can fail on one bank.
but if the cam belt slipped, some PCM go nuts with crazy CMP pulses.
let me explain if you were a PCM and the cam and crank signals.
are in contradiction, do you inject or not? (pretend that)
some do, some dont other guess wrong, or go goofy.

the spark and injections are all timed.
that is why I always check spark timing First.
a 5min job.
the new cars have no spark timing adjustments
and many think that is excuse to throw the tool away
nothing is so far from the truth...
learn this. and win...

p0171 is system to lean ( bank 1 ). did you turn off check engine light with a scanner! if not go to auto-zone and they will erase it for free, then you can see if light stays off. There could be a vacuum leak downstream of the MAF sensor.

Inspect all vacuum and PCV hoses, replace if necessary

Check for a dirty fuel filter and proper fuel pressure. Basically this means that an oxygen sensor in bank 1 detected a lean condition (too much oxygen in the exhaust). On V6/V8/V10 engines, Bank 1 is the side of the engine that has cylinder #1. good-day!!

The 2002 Santa Fe came with three (3) possible powertrains (engines). The 4 cylinder, and two different V6 engines - i.e. 2.4L 4 cylinder, the 2.7L V6 and the 3.5L V6.

The crankshaft position sensor on the 4 cylinder and the 3.5L V6 are in the same place - Front Crank Shaft behind the pully (behind the timing belt cover.

On the 2.7L V6, the Cranshaft Position Sensor is located in the engine block (Left Hand Side)
near the flywheel (adjacent to the LH (Bank 2) exhaust manifold.

Note: Left Hand Side means the radiator side (front) Bank 1 is the firewall side.

P1147: HO2S-12 (Bank 1 Sensor 2) Rich Shift Monitoring (Bank 1)

If your car has a V6 engine then the problem is the oxygen sensor AFTER the cat on the side that has cylinders 1,3,5. that would be the cylinders closest to the firewall in your car.

Ford V6's - rear bank of cylinders are 1 - 2 - 3. Front bank are 4 - 5 - 6 starting from passenger side (front) of engine.
Your firing order is
1 - 4 - 2 - 5 - 3 - 6

You're welcome.

these did not have a 3rd sensor
V6 engine only has one each side just after exhaust manifold flange.