r/GRYaris

Hello.

Have a problem with my car.

It stutters on acceleration.

It happens on every gear. Sometimes it's hard to even accelerate, but oither time I can drive fluently with small stutters here and there. Feels like an issue with fuel system or ignition system.

But

No check engine light

Replaced spark plugs

Replaced ignition coils

removed and tested injectors.

Managed to get a new fuel pump. It's waiting for replacement.

Maybe someone had similar issue. I have no idea what it is. Local Toyota dealer is helpless.

Local tuners and mechanics can't help.

Edit

One other thing to add. Every time I replace a part, car will behave normally for some time (like 1-2 hours of driving). After this time stuttering is coming back.

Sent it to Toyota, they replaced fuel pressure sensor, car was driving perfectly for a few hours.

Stuttering came back, local shop replaced spark plugs and ignition coils, perfect behaviour for an hour.

Removed and tested injectors, you guessed 2 hours of perfect behaviour.

Had a black GR last year, but I bought impulsively and chose a car I wasn’t 100% happy with. Sold after 10 months. I was sad but it wasn’t that I regretted selling, more that I regretted not buying more carefully.

My friend bought me the Hot Wheels model to cheer me up. I went jn a different direction and bought a Mk7.5 Golf R in an attempt to save money, improve practicality but still have something fun. For 6 months I tried to bond with the car all while this little model sat on my desk every day while I worked.

Eventually I had enough and bought a pearl white 22 model. With only 5k miles on and it’s clearly been absolutely cherished. I’m so happy with it, it’s like a brand new car inside and out and feels so much tighter and fresher than my black one (which was on 38k and they were clearly enthusiastic miles), although I am willing to admit some of that may be tainted by the VW interlude, their manual boxes are so sloppy in comparison.

I have promised myself (and others) to keep this longer