OK my 2001 Chevy Silverado 1500 I just changed my throttle position sensor my fuel regulator sensor and fuel filter and cleaned mass air flow sensor and the truck is still sluggish

Asked by Dec 26, 2014 at 09:55 PM about the 2001 Chevrolet Silverado 1500 Extended Cab SB 4WD

Question type: Maintenance & Repair

The truck won't shift down right away going up hill or if you get into it with the gas it will go like hell the tore size is 305 40 23 I need help please

14 Answers

17,935

Any codes?

It threw a bank 2 o2 sensor but I don't have one on my truck

17,935

Bank 2 sensor 1 or sensor 2? Also did you just take it out?

Just now and says bank 2

17,935

If you can get the actual code "p04??" I can work with that a little better.

Yeah it just threw that one service engine light came on I replaced the other one an hour ago but now the p0420 came on

It just threw the po420 code bank one I'm at a dead end with this truck aren't i

What do I do about that p0420 code its throwing

17,935

P0420 is typically a bad catalytic converter. Maybe it's clogged?

I took them both out and just put pipe in there place but all 02 sensors still in but it still is running sluggish it bugs down and u have to almost floor it to get it to down shift

17,935

That's got me a little stumped. Either the tips isn't reading right or the valve body is having issues. I would suggest checking fuel pressure too.

What should the pressure be and when u say tips what is that exactly

17,935

Sorry I meant tps. Auto correct messed that up.

What is that I know everything about old trucks and diesel but this gas and new shit lol not so much

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