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Mike Kelly
Mike Kelly, Mazda Mechanic
Category: Mazda
Satisfied Customers: 257
Experience:  17 years experience as an auto mechanic, foreign and domestic. 5 years running my own repair business.
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I have a Mazda 323 2.0 sport 53 plate.I have changed the

Customer Question

Hi , I have a Mazda 323 2.0 sport 53 plate.I have changed the battery , spark plugs, catalytic converter, coils, lamba sensors , air filter , oil filter , oil & the mass airflow meter.Still can't get the vehicle to run smooth.When taken for a long hard ride down the motorway, the engine starts to struggle to idle when slowing down or stopping in traffic & sometimes cuts out. When accelerating through the gears there seems to be a fuel air mixture problem as it stuggles to pick up smoothly.What could be the issue having changed all that I have?
Submitted: 2 years ago.
Category: Mazda
Expert:  indy-tech replied 2 years ago.
Name is***** goal is to provide you with excellent service – if you feel you have gotten anything less, please reply back,
Was or is the check engine light ON when the engine is running .
If it was on did you check for malfunction codes ?
what where the codes if any.
Rgds Greg
Customer: replied 2 years ago.
The engine light was on & the codes indicated lamba censors & the catalytic converter. Those changed the light is off
Expert:  indy-tech replied 2 years ago.
Okay good thank you .You need to check the fuel pressure as this now sounds like a fuel pressure issue .Can you check also with a good scan tool the fuel trim . Greg