Smoking on hard acceleration

Discussion of tuning specific to MAZDASPEED3/MAZDASPEED Axela/Mazda 3 MPS vehicles
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M.P.S
Posts: 1
Joined: June 13th, 2013, 3:07 am

Smoking on hard acceleration

Post by M.P.S »

Good day

Was wondering. What can I do to stop the black smoke on hard acceleration.It seems that the car is running rich.
Is there a map that will solve the issue or is it just a general issue with the mazda 3 mps, Is there any thing els that can be done
I don't want to buy the cable and software if it won't help me

Gen 1 mazda 3 mps
South Africa

Any help would be appreciated
mituc
VersaTuner guru
Posts: 1324
Joined: December 17th, 2011, 2:47 pm
Location: Iasi/Romania

Re: Smoking on hard acceleration

Post by mituc »

With no logging/monitoring there is no way to determine what's wrong in your case. But yes, looks like your car is running too rich assuming that the smoke is black. The AFR values go as rich as 10 AFR on the stock tune but the catalytic converters should take care of the extra soot. Even without catalytic converters the smoke should not be visible in this case.

So i suggest to visit a mazda dealer and ask them to look into your problem.
2008 Cosmic Blue Mazda 3MPS
Built engine + WMI + GTX3071 gen2, ~509BHP @34PSI
2008 Icy Blue Mazda CX7
Stock engine and exhaust (YES!!), JBR3" + GTX2867 gen2 + Autotech HPFP, self-tuned to 330-ish BHP
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