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The they checked the EPS? Did they say that it has power to it? Did they check the steering angle sensor? What did they say? Is there a signal?

No best. All have their pros and cons and all can make more power than advertised with supporting mods.

You not wrong. I wouldn’t recommend doing any hard driving with 1/3 tank. The Venturi sucks fuel ungodly slow and the little hole in the bottom of the bucket that fills it isn’t much better. Transfer from the side without the pump to the side with slows way down as the tank gets low because the...

Any chance you can provide a video of the noise?

Sounds like a mode door actuator sticking

Check for vacuum leaks as discussed, also check the IMRC’s wiring, vacuum hoses, and verify they close at idle. If they are open at idle and not tuned for it it can cause lean condition

Quality basic bolt ons like cai, cat back, from a good vendor that provides data and a good tune you will have no problem caused by the parts or tune

Check for knock if it shows knock weather it’s real or false it is pulling timing, check intake air temps if it’s too high ether real or bad sensor it’s pulling timing. Check fuel trims maybe you got bad gas. Check cylinder contribution. Check oil pressure. Check cam advance. Check throttle body...

I had a similar issue once. I was driving on a mountain road gettin it when all of a sudden my steering felt like it locked up. It didn’t though, it just got really hard to turn. The power steering is electric and the power wire somehow wigged loose enough that it lost connection. The electric...

Maybe I misunderstood

With LT fuel trims at 25 even when the ST fuel trims go -10 or -15 your still positive 15 or 10. So it’s still showing a lean condition

When you install the new pumps make sure you get any air out of the tube that crosses over from one side of the tank to the other. If air gets trapped in there it acts like a toilet trap and slows down fuel transfer across the tank

Generally you want to keep the bucket full all the time in all driving conditions. This helps keep the fuel pump cool and insures you don’t starve the system of fuel.

Basic bolt ons from known vendors have been vetted extensively. Should have no problems with good vendor parts and a quality tune

Fuel trims are high on both banks just higher on bank 2

Check o2 sensor voltage bank2 sensor 1 and bank 1 sensor 1

No point in changing the belt unless you are installing a gates green belt or rpm belt. Rpm being the best option from gates. When he gets to the point where he wants more power look into a overdrive balancer

Have you checked fuel trims on bank 2?

The smoke test will check for vacuum leaks the o2 swap will verify the o2s are good and the injector swap will check if a injector is clogged or failing for some reason

Yes the two closest to the engine. You can check them but I would still swap them if it is possible. I would swap the o2s and swap all the injectors from side to side and see if the code changes banks