staggers and stumbles

i have a 93 accord lx its got 180000 miles on it, there is no check
engine on the trouble i am having is the tach jumps at 3000 rpms and
at that point the car surges or jumps, but if you ease into the
throttle it will be fine it only when u cram fuel into it is when it
does it sometimes it will smell a little gassy when u fire it up i
have done a complete tune up on it from plugs,cap,rotor,wires,fuel
filter,injector cleaner,it idles fine need help please :!: :!:

 

Eliminate these basics:

Thoroughly purge the cooling system of air, exactly per the
manual's directions. Certain sensors that provide input to
the car's computer must be submerged in coolant to work
properly.

Consider a new oxygen sensor. A failing old one will not
necessarily set off the check engine light. Buy only an OEM
sensor. Denso OEM ones are available on the net for much
less than what your dealer wants.

 

remove all the junk off your key ring and manually return the key to the
full "run" position after starting. if that helps, you need a new
ignition switch.

 

how does the ign.switch affect a 3K rpm surge?

I note he didn't change the air filter.....
That "gassy smell" could be bad injectors.Maybe they're past the point
where injector cleaner would do any good.

Oh,I'd also wonder about the throttle position sensor(TPS).
It could have a bad zone on the element,or be dirty.

 

vibration - some resonance at that frequency perhaps.

/highly/ unusual for honda injectors to get that bad, and certainly not
in only 180k miles

usually sets a code. and usually goes at higher mileage.

 

thanks for all the help i purged the coolant system,cheked the
timing,checked the injectors,cleaned out the fuel tank, to find out
that the distributor had a broken wire and was arking against the
case fixed the wire now runs like a scalded dog thank agai