slumpedp

so i bought my 03 is300 2jz a few weeks back from a buddy, he had cracked the radiator, and when i bought it, i replaces the radiator and coil packs. along with the spark plugs hoping that would help, well it starts and drives but doesn’t drive far. it seems as if there’s not much power, and doesn’t sound as if it’s shifting right. i went ahead and bought a new mass air flow sensor hoping that would be it, it wasn’t, it kinda helped. the car when it stops it’ll start to shake. i don’t know what to do. can anyone plz help

TrueGS300

Is there an engine light on? Have you pulled codes?

daddystop

Sounds like terrible misfiring at low rpm idle causing the car to shake to me. As TrueGS300 asked, knowing what the engine codes are would be beneficial.

PrisyCrisy

That’s what was happening with my misfire.
check the cords.
I replaced the plugs and cords and connectors and no shaking idle

Stuis01

I'd replace the spark plug wires as well. Mine were cracking bad at around 100k.

Will cause misfire,
If you see the traction light going on and off it's probably that