Question

Can a throttle position sensor cause a misfire?

Answer 1

The throttle position sensor may be a cause of your engines misfire if it's not getting the correct fuel to Air mixture ratio.

However I would take the vehicle to Autozone or another shop and have then run a test on the engines computer to determine the exact cause before spending the money replacing the throttle position sensor since it's unlikely the cause of the engine misfiring.

The throttle position sensor is part of your vehicle's fuel management system, and helps ensure that the correct mixture of air and fuel is delivered to your engine.

But things that could be causing your engine to misfire are faulty spark plugs, bad spark plug wires, low fuel pressure, dirty or clogged fuel injectors or engine compression problems.

A failing or even dirty MAF sensor could cause the vehicle to get a lean code and lean fuel mixture would could cause an engine misfire.

Autozone will test the vehicle for free to determine the problem but your vehicles check engine light needs to on for their tester to work.

Answer 2

Yes indeed A Throttle Position Sensor can be a cause of an engine misfire since the throttle position sensor controls the fuel and air mixture by letting the computers engine know where your throttle is located.

Sometimes the throttle position sensor could just be dirty and need cleaned while other times it may need replaced.

I tried replacing everything else on my vehicle such as spark plugs, ignition coils, fuel injectors etc and it still had a misfire.

So I took it to a shop and they found the problem to be the throttle position sensor being bad and after they replaced the throttle position sensor the vehicle quit having misfires.