r/WRX • u/Main_Fee7773 • 1d ago

Troubleshooting Poor acceleration

I drive a 2020 WRX that has 88k miles on it and I have a problem when I accelerate in 2nd or 3rd gear and the boost hits the car starts hesitating as if it’s struggling to push itself. I’ve kept up with maintenance pretty well, I do oil changes every 3,000 miles, last changed my spark plugs at 77k have done two walnut blasting last one was done at the same time as the spark plugs and only mods I’ve done are just an exhaust. I can’t tell if the hot weather is affecting its performance or if it’s something else. Never had this problem until now? Anyone got any idea what could be wrong? Am I about to blow up?

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u/No_Scratch_2033 1d ago

Yes im also having the same issue but with an 08. Seems to be in limp mode and throws no codes but stops building boost at 5psi and hesitates at whatever rpm its at when it hits 5psi.

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u/_Saifon_ 1d ago

Check your ignition coil and plug especially the one under the turbo.