Engine runs, zero response to accelerator pedal - SOLVED

TL;DR

• Symptom: 2003 V-8 Tundra starts and idles fine but there is absolutely zero response to the gas pedal in park, neutral or drive, i.e. the engine does not move off idle regardless of gear or throttle position and the truck can't be driven.
• Cause: It was the ETCS (electronic throttle control system) fuse, 10 amp in position 22 under the hood on my 2UZ-FE.

This symptom has a number of suggested solves in the inner tubes but I didn't come across a suggestion to check the fuse. That probably should be a first step in diagnosing a problem but I slept that day in diagnostics school (I think I slept through every day of diagnostics school which explains why I'm NAPA's best customer ever.)

Other solves mentioned include: TPS, the brake switch that doesn't allow the engine to be revved with the brake on while in gear (I didn't know this existed), dirty MAF, dirty throttle body, etc.

p.s. Dirty little secret: the truck jumped another car before this symptom began and there's a good chance the cables were crossed. Lesson-of-the-day: incorrect connection of jumper cables can immobilize your car (or worse). Don't do this.

That's all for today. Ridicule and constructive comments welcomed.

 

There's another thread here about someone hooking up a battery backwards. They listed a myriad of issues. Here's a link for anyone else reading this in the future.

Make sure you double check, and triple check you're hooking positive to positive (Red) and negative to negative. (Black)

 

I went out and got one of these for myself as a present last week. Not only because you don't hafta worry about crossed cables, nor having to pre-charge an internal battery regularly, nor having to carry around more mass of cables, but there's also no concern of crossing wires to make a 24v battery while jumping someone

​

 

^^^Wow, I'd never heard of such a thing. Cool. I'm still holding out for the multi-function module that plugs into my neck, jump starts my car and gives me x-ray vision.

 

I got one of those for my wife a couple of years ago. She was on the road a lot for work, and I wanted to be sure she had some backup if she encountered a bad battery -- for either her or someone else. I've used it a couple of times to jump start vehicles and it works as advertised. I got several starts out of it even though it had been sitting for months and the charge was down to 70%.
It's also super handy as a mobile charger for phones. When we go camping my wife uses it to charge her phone or tablet without having to hook to a charger in the camper. She can just bring the jump pack down to the beach, plug into the USB outlet, and charge while she continues to use the phone.
A word of warning though: the "12V" out has a really high voltage -- like 18V-19V. Not a problem for jump starting because it will drop immediately when connected to a weak battery. But it can be a problem if you try to power something with electronics. I tried to use it to run an automatic air compressor (to fill an inflatable paddle board), and the overvoltage protection circuitry in the pump would throw a code and wouldn't let the pump cycle on.