Car loses power while driving

Hi jgonzalez160, welcome to 2carpros

Scan the computer scanned for code/s-you have a problem within the engine management system that caused the CEL to turn on. This is your starting point of diagnosis, finding out what is going on.

This guide will help us find it

https://www.2carpros.com/articles/engine-has-low-power-output

Please run down this guide and report back.

Inspect and test the TDC sensor on front engine see location number nine as for the P1457 check the gas cap and EVAP canister vent-shut valve or get it smoke tested to find it

Hello SEGMA.

Pull your cluster panel check the cable that runs from the transmission to the cluster.

Hello,

If I could step in here real quick. There is a Self Diagnostic Test you can do to test the functioning of the gauge assembly. I have included it in the diagrams down below. Please go through it and get back to us with what you find out. If the gauge assembly needs to be replaced we can give you instructions on how to do that as well.

Thanks,
Alex
2CarPros

The engine is in limp mode and there is either a fuel or ignition cut. Your exhaust manifold is red hot because you are spitting out a lot of raw fuel into the exhaust.

Scan the PCM, that is the first step to diagnosis. There could be a number of different problems.

When you say it loses power, does it shut off or just get sluggish? When this happens does anything else shut off like the radio, heater, lights?
If it just shuts off is it instant like you turned off the key or does it sputter and skip like it is running out of gas?

You most likely have a sensor out of range.

What is the DTC (diagnostic trouble code)? That should lead you in the right direction.

Hi kurtsteele65,

Misfiring would cause loss of power and it could be due to the spark plugs or related parts. Misfires can also damage the catalytic converter, which from what you are describing may be partially plugged. Try loosening the exhaust flange before the cat and driving it, if the cat is the problem it will run ok, but yes it will be loud

Read the guide below, it will help

https://www.2carpros.com/articles/bad-catalytic-converter-symptoms

The oxygen sensors won't cause that. They simply help the Engine Computer fine tune fuel metering for lowest emissions, and the "downstream" ones monitor the efficiency of the catalytic converter(s). Basically there's three things to look at. There could be a lack of engine power from misfiring cylinders. You'd feel and hear that. Power could be down due to a jumped timing belt, but usually the engine will be hard to start too.

The exhaust system could be restricted, typically due to a plugged catalytic converter. Listen to the sound of the exhaust at the tail pipe. If you hear a steady hiss instead of the normal "putt-putt" sound, suspect a plugged catalytic converter. There should also be a good hard air flow from the tail pipe.

A disc brake could be dragging, but there will almost always be other symptoms or observations. Feel next to the two front wheels after driving a few miles. If one is real hot, have the brake system inspected.

Also be aware that diagnostic fault codes never say to replace parts or that they're bad. They only indicate the circuit or system that needs further diagnosis. When a sensor is referenced in the fault code, it is actually the cause of that code about half of the time. Your mechanic must check the wiring and do some electrical tests to rule everything out other than the sensor.

So there are no engine codes? Here again it can be so many things. Fuel, spark, sensors. Why did they change your IAC? Same reason?