1994 Mazda 121 DB1031 1.3i
Summary:
Needs a proper 3 point tune up to bring out the economy
Faults:
Economy is bad, 340km per 35L tank, in my opinion anyway. 9.71 L / 100 km city driving.
I heard from a ex-Mazda mechanic that the Mazda 121 requires to be tuned at 3 different points for a proper tune.
I believe that a tell tale sign is when the car idles at 1500 RPM, and can vary for no apparent reasons.
Previously it was serviced by an 'old-school' mechanic, and no improvement was noticed. Apparently this is a common problem, as most mechanics are not aware of this 3 point tuning - which I am not sure what it actually means or entails.
This car was bought second hand, and looks like it has had quite a bit of 'backyard' work done to it - so was not in the best of condition when we first got it.
Will be getting this ex-Mazda mechanic to do the tuning, and will ask him further what it means; post results of this tuning.
I believe that the Mazda 121 93 model (MAZ DB1031) could be more economical as per Redbook website, of 8L/100km.
Would you buy another car from this manufacturer? Yes
Review Date: 14th September, 2007
17th Sep 2007, 04:56
I have a 1993 626 2.2L wagon that I'm trading in on Wednesday the 19th Sep, that's doing the same thing, spontaneously idling at 1500 from 850 for no reason. While doing this it also misses badly under acceleration and belches black smoke like an old diesel.
I've just paid Mazda $400 to fix it and they couldn't after 1 week. They thought it was the Idle Speed Control Solenoid, which they tried to fix, didn't work.
Replaced the entire throttle assembly with 2nd hand one, still didn't work and they said they'd also tuned it up.
It has 260,000km and I don't want to spend another dollar on it, which is why I'm turfing it for $800 on a brand new Ford Focus TDCi.
Has been a great car over the last 4.5 years, but I just want to be rid of it now. Although it won't matter to me personally, I'd be curious to find out if it would need this 3 point tune you're talking about.