Isuzu Hombre 4.3 (Chevy S10) 1997 won't start

Check for spark to the plugs. If you don't have it, look at the crankshaft position sensor. If you do, then look at replacing the fuel filter. Clogged filters will give you pressure. But not volume. I would replace it anyway.

try a fuel system cleaner in your fuel tank get one that cleans the sensor.and check the wiring at the sensor may be broken. if that does not work time to change your O 2 sensor.

Check for a vacuum leak in your hoses it may be as simple as this or a fuel filter I say just change it to make u sleep better at night lol

its really a GM car, end to end.

no engines codes, is not true i bet ,
some codes take 1 to 3 trips, or dont store
and if you get CEL glowing, driving too much can clear the codes.
so.... that means you must scan it failing. see?

sputtering is misfiring (bad spark or way to rich fuel)

why do you jump all over fuel first.
try spark FIRST no gas engine burn fuel right with bad spark'
not one, and is first not last.
ever heard of tuneup, done one in last decade.
you know, spark parts? plugs and wire top list.

in the rules of basics its:
engine good, (compression test pass, and vacuum looks ok)
then spark
last fuel
why do that backwards/?

The lean condition is usually the result of an O2 sensor fault, or a vacuum leak.
The EGR may be stuck and setting that code, you can remove clean and check wiring connections.
The po452 fault code is related to a low input signal from your EVAP system which is to do with your purge canisiter system...You could have a faulty sensor in this system or again bad wiring...

Troubleshoot these areas, clear all fault codes and see how she runs.

Good luck, i hope this helps.

crank senser sounds like your problem.

You need four things for an engine to run. 1. fuel 2. spark 3. compression 4. timing (spark at the right time. By your post it seems you have fuel and spark and you probably have compression unless you blew a head gasket. That leaves the timing. Check the timing and/or the timing belt or chain whichever you have.

what is your fuel pressure like? im guessing you have injection on this still.

Check for spark and get back to me.

Have you removed the spark plugs to look and see how the cylinders are burning fuel, while the plugs are out you could check the compression in each cylinder,
How about the fuel pressure, what is it ?
Any engine codes ?
I will be able to help you a lot more with this info.