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Matt
Matt, Mechanical Engineer
Category: Mazda
Satisfied Customers: 20583
Experience:  BEng hons Mech engineering, in auto industry 22 years
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My mk 1 Mazda 6 engine management light doesn't light up

Customer Question

My mk 1 Mazda 6 engine management light doesn't light up when you turn on the ignition
Submitted: 5 months ago.
Category: Mazda
Customer: replied 5 months ago.
04 model year 1.8 petrol, getting reading on my obd tool but no light on dash.
Expert:  Matt replied 5 months ago.

Hello

its possible that a previous owner has put some tape over the bulb inside or otherwise disabled it to get it to pass a MOT

if you have an logged fault code then I'd trust that and try and resolve it

some MOT garages will pick up on the lack of the bulb check illumination and fail you - others may miss it

Customer: replied 5 months ago.
Don't think it's been taped over suspect its been disabled in ecu
Expert:  Matt replied 5 months ago.

Hello

thats possible but would need a custom ECU flash to do so

if the car has been tuned or modified then this might be part of it

what are you trying to achieve?

to return it all to standard ?

Customer: replied 5 months ago.
Just bought car and having issues with rough running and poor performance, don't think it's been modified for tuning more likely to hide engine management fault.
Expert:  Matt replied 5 months ago.

OK

what is the fault code / s that you can read off with the scan tool ?

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