Question about 1988 Mazda B2200

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Starts good, idles good but bogs down when accelerating.

I've changed the fuel pump, sending unit, fuel line, mass flow air sensor, plugs, wires, cap, rotor button, TPS, intake temperature sensor, coil. I'm at a loss with this truck of mine. I have a fuel guage in the supply line and the pressure is always above 40psi. It bogs down as if it has a shortage of fuel. if you accelerate slowly, it will get to about 50mph max. I hope you can help me.

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  • yadayada
    yadayada May 11, 2010

    About time to see the dealer, stop throwing parts at it.

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Its the caburtor, it blocks the fuel from the pump and it also bogs out, factory fault you need to replace the caburator and bypass all the smog stuff, just install the o2 sensor into the air intak hose thats what i did

Posted on Feb 11, 2009

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3 Answers

Car idles fine, but sputters, bogs and dies if gas pedal is pressed.


new spark plugs this decade. (a tune up?0
the filter is part of all 60k tuneups. letting it clog wrecks good pumps.
my wild guess, its lack of fuel flow, do to old filter.
or low fuel pressure.
car is identical to a Corolla. so is not unique or rare as some Geo cars are.
the cam belt not changes, invites valve kissing piston tops. BOOM
end of engine. (costs more to fix then worth of car)
the word is bogging, my engine bogs
if if bogs WOT (wide open throttle) and dont catch up < ITS NOT THE TPS. ever.
tps bad causes short bogs, called hesitations.
The map sensor , is what measure air flow and the ECU matches fuel to this air flow.
my guess, is it does that, but fuel pressure is like 15PSI, bad.

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