SOURCE: car with loss of power
It could be that the coil is weak, or the igniter module is faulty (ie not giving the coil enough time to charge), or the fuel filter is blocked, or the exhaust is blocked. I have seen Cat Converters melt down internally and block up the exhaust pipe, causing faults like what you describe. Thats probably the first area i'd check, and easy enough to do so, just remove the Cat from the exhaust and take it for a drive. It'll be noisy, but if it goes heaps better then you know that is the problem. If it doesn't go any better, stick another fuel filter on it (it's probably due for one anyway) and see if that does anything. From there it's probably better to get a mechanic or auto electrician to diagnose the fault. It is also possible that the fuel pressure regulator could be faulty, not keeping sufficient fuel pressure in the fuel rail.
SOURCE: my mazda soho 121 1998 model speed can only go up 120
speed limiter most likely its a device they install to stop you being able to speed they also make rev limiters, or your engine can only go that fast which i doubt cos 130 pretty low for an engine stop at
Mazda 121 2-2 - Scribd
https://www.scribd.com/doc/34263197/Mazda-121-2-2Jul 13, 2010 - Mazda 121 2-2 - Free ebook download as PDF File (.pdf), Text file (.txt) or read book online for free. Workshop Manual Volume2 of 2 ...
images for heat sensor location
SOURCE: my mazda soho 1.4i cuts out when you stop at the stop street or robot and she doesn't rev up?
I had the very same thing. It's just dirty idle valve. . Or what the correct name is . I forget now. It located on the top left of the intake manifold and has an electrical plug with 3 wires connected to it. Remove it there are 2 spline screws. Spray with carbon cleaner and clean out throughly. Refit and that's the end to your problems
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