2022 Toyota RAV4 — catalyst efficiency code but car drives normally

If it were in my driveway, write temp, speed, and in-gear vs coast when the 2022 Toyota RAV4 does it — then decide on parts. Save the big job until that test fails. Write the result down so the next test isn't a repeat of the last one. I'd sleep better after that step, even if it finds nothing. If that fails I'll eat the diagnostic fee.

This is usually cheaper to test than to guess. Two 2022 Toyota RAV4s can feel identical and have different causes, so measure before you copy someone else's repair. You'll know quickly if you're on the wrong tree. I'd want that in writing, not as a promise. I keep a notes app thread for this now.

Log the conditions before you spend. A pressure test beats staring at a dry driveway if the 2022 Toyota RAV4 is losing coolant with no puddle. Don't erase codes until someone who can help has seen them. On “catalyst efficiency code but car drives normally,” that was the fork that mattered for me. This is from a 2022 Toyota RAV4 in Connecticut with 17,000 miles. Verbal 'we'll take care of it' is not a plan. If it repeats twice more I'll book time.

Start with the test that can prove you wrong. A pressure test beats staring at a dry driveway if the 2022 Toyota RAV4 is losing coolant with no puddle. Save the big job until that test fails. Was this after sitting overnight? I've seen both outcomes, which is why I'd test instead of assume. That's my plan before I call anyone.