I recently had some issues with my ranger it's a 98 4.0 4 wheel drive. It started with the camshaft sensor and then it ended up meeting you at camshaft and a couple other minor things now check engine light keeps coming on it's saying possibly a fuel pressure regulator but I don't think that's the problem what else could it possibly be being as the camshaft and the camshaft sensor was just replaced

 

Without knowing the actual codes, we have no idea.

 

+1 ^^^^

Need exact code numbers

List here: https://www.therangerstation.com/tec...trouble_codes/

These are just a FEW of the Cam sensor codes, not all
P0340 Camshaft Position Sensor Circuit Malfunction
P0341 Camshaft Position Sensor Circuit Range/Performance
P0342 Camshaft Position Sensor Circuit Low Input
P0343 Camshaft Position Sensor Circuit High Input
P0344 Camshaft Position Sensor Circuit Intermittent

And each one means something slightly different
So there isn't "the camshaft sensor" code, there are lots of them, lol

And no "fuel pressure regulator" code, that's not a monitored system on a Ranger

 

I should have been more thorough in my description the motor is out of a 2000 Ford explorer but it is in a 98 ranger this is a picture of the exact code it threw
I went to two different parts stores one person said it was a mass air flow sensor that was $300 and the other parts store said it was a fuel pressure regulator that was $89. I just don't have enough money to try everything

 

P0175 is Drivers side of engine.

If you also had a P0172, which is passenger side of engine, I would agree with the "possibly" MAF sensor or the "fuel pressure regulator"

Being that is only one side of the engine throwing a code, my first guess would be the O2 sensor on the drivers side is wore out.

 

Lean and Rich codes are set by the upstream O2 sensors after warm up

And O2 sensors are the ONLY sensors that wear out on a schedule, 12 years or 100k miles

On a V6 engine there are 2 upstream(closest to the engine) O2 sensors, one on passenger side(bank 1) and one on drivers side(bank 2)
You can swap these around and see if code changes to other side, P0172 System too Rich (Bank 1)
Or if you do not know the age of current O2 sensors just change them

Nether of the diagnoses would be correct, just FYI
If it was a MAF sensor issue BOTH O2s would set P0175 and P0172, same for fuel pressure issue, because both sides of the engine use the same MAF sensor and same fuel pressure

Since you just have the one code it has to be something specific to that side of the engine
Could be O2 sensor on that side is old
Could be one fuel injector on that side is leaking
Could be exhaust is partially blocked on that side

 

Thank you very much. I appreciate the help

 

313,000 miles on your Ranger! ! Congrats are in order.
Being you went to O'Reilly AP for code reading service, I gotta make a respectful suggestion.
Get a code reader. The prices have come way down and the features included are many.

A slightly-better-than-basic code reader will pay for itself by eliminating trips to an AP store.
Also, if you do ever swap components side-to-side to see if a code changes sides, you can determine the results right there and then..

Often, an electrical glitch can spawn a slew of codes. With your own reader, you can erase them all, reestablish a solid electrical supply and see which codes return, if any.
Also, many of today's readers clear formerly "dealership only" codes like SRS (an airbag light caused by unplugging a seat, for example).