I had the transmission on my 2018 Mazda3 changed around six months ago. Was running perfectly fine till recently.
Seems to be upshifting right, but downshift or passing a car, the engine seems to choke and slams into a hard downshift, seems to be 3rd and 5th gear (I have the automatic). This creates a kind of jerking slightly.
Now, with a new transmission recently installed, I suspect it could be the upstream oxygen sensor. I have no code, no CEL, nothing. Spark plugs have around 50k km on them, air filter is good. Seems to lack power and have lower MPG, smells like gas sometimes on startup.
Is it possible the transmission is going out again? or a lazy oxygen sensor would be the cause?
Anyway, I'm tired of the trouble I had over the last year with this car, I have a deal to get rid of it and get into a 2023 Civic Sport with CVT.
Any tips would help, thanks.
Seems to be upshifting right, but downshift or passing a car, the engine seems to choke and slams into a hard downshift, seems to be 3rd and 5th gear (I have the automatic). This creates a kind of jerking slightly.
Now, with a new transmission recently installed, I suspect it could be the upstream oxygen sensor. I have no code, no CEL, nothing. Spark plugs have around 50k km on them, air filter is good. Seems to lack power and have lower MPG, smells like gas sometimes on startup.
Is it possible the transmission is going out again? or a lazy oxygen sensor would be the cause?
Anyway, I'm tired of the trouble I had over the last year with this car, I have a deal to get rid of it and get into a 2023 Civic Sport with CVT.
Any tips would help, thanks.