I would start by checking the coolant in the cooling system
reservoir. If it's not between the max and min lines, then
fill to the max line.

Certain engine control sensors must be immersed in coolant
to work properly. If the coolant is at all low, they may not
be immersed. The sensors then send the wrong signal to the
fuel and air control systems.

Especially if the coolant was recently replaced, do this. It
costs little and is a common cause of the problem you
describe.

There are others. Start here, though.

Please confirm whether
-- OEM ignition wires and spark plugs were used
-- the air and fuel filters were replaced. If not, when were
they last replaced?
-- the battery is old. This is for the slow-to-catch
problem. Battery age in years and miles, please? What make
of battery is now installed? Do you have a multimeter to
check its voltage with the car off and on?


"Bridget" <rbwhitng@megalink.net> wrote

>I have a 93 Accord EX with 158K miles, 5 speed manual, with
>an
> intermittent problem. It sometimes hesitates while
> accelerating at
> low rpm. It happens when I shift to 2nd or from 2nd to 3rd
> or when
> going around a corner in 3rd and then trying to
> accelerate. It seems
> to go away when the rpms get higher.
>
> The main relay was replaced in June 06 when the car would
> not start
> (crank but not start). This hesitation/jerking/stumbling
> problem is
> recent. Last week I had a tune-up at Honda dealer - spark
> plugs were
> replaced and timing, belts, hoses & filters were checked.
> The fuel
> relay (Relay RZ 39400-SM4) was replaced. It did not fix
> the problem.
>
> Also, sometimes when I start the car it sounds like it
> isn't going to
> catch but then does. Again, it doesn't do this all the
> time.
>
> Any ideas on how to fix this problem without replacing
> everything in
> the car?
>
> Thank you for any advice.