Re: Starting Problem-87 Civic Si
Still stumped....
I have swapped distributors including the cap, installed a new fuel filter, swapped the fuel regulator....no luck the car still does not want to start when cold and seems to miss and hesitate slightly when put under load once I get to run I checked the fuel pump flow and I have a question....how fast should fuel start to flow when the fuel return line is disconnected. The manual says the pump should deliver 8 ounces in ten seconds but fuel doesn't flow for the first 3 or 4 seconds once the pump is started through the ignition switch (main relay terminal jumped). Is this a problem? Once fuel is flowing, the pump delivers 8 ounces in ten seconds roughly. Should I be chasing this at all? Any ideas? Tim "Tim Channel" <channel@logicsouth.com> wrote in message news:vhc8efmbdi6bf6@corp.supernews.com... > I'm stumped......I have a 1987 Civic Si hatchback that just started > misbehaving when starting cold. This is what happens: > > Turn key to ignition position > All the appropriate lights on the dash show, oil, pgm-fi, brake... > Turn key to start position > Engine spins but hits on cylinders sporadically > Engine makes a snapping noise every rotation > Engine backfires through throttle body > Engine eventually picks up on enough cylinders to keep itself running > Engine eventually starts hitting on all cylinders and evens out. > This only happens when I start the engine stone cold. > The engine fires right up when warm. > > I have swapped computers (I have a spare), checked timing, spark plugs, > wires, O2 sensor, crank angle sensor, thermowax sensor....no luck...any > ideas? This is driving me nuts and I refuse to take the car in to a > mechanic. > > Help me out guys. > > Tim > > > |
Re: Starting Problem-87 Civic Si
If it's an electric fuel pump, they usually need a few seconds to
build up fuel pressure...that's normal. Sounds like it's working okay...ask a Honda tech at the dealer to be sure though (or look in your Haynes/Chilton/factory manual). John D. "Tim Channel" <channel@logicsouth.com> wrote in message news:<vhufq4n6568m46@corp.supernews.com>... > Still stumped.... > > I have swapped distributors including the cap, installed a new fuel filter, > swapped the fuel regulator....no luck the car still does not want to start > when cold and seems to miss and hesitate slightly when put under load once I > get to run > > I checked the fuel pump flow and I have a question....how fast should fuel > start to flow when the fuel return line is disconnected. The manual says > the pump should deliver 8 ounces in ten seconds but fuel doesn't flow for > the first 3 or 4 seconds once the pump is started through the ignition > switch (main relay terminal jumped). Is this a problem? Once fuel is > flowing, the pump delivers 8 ounces in ten seconds roughly. Should I be > chasing this at all? > > Any ideas? > > Tim > > "Tim Channel" <channel@logicsouth.com> wrote in message > news:vhc8efmbdi6bf6@corp.supernews.com... > > I'm stumped......I have a 1987 Civic Si hatchback that just started > > misbehaving when starting cold. This is what happens: > > > > Turn key to ignition position > > All the appropriate lights on the dash show, oil, pgm-fi, brake... > > Turn key to start position > > Engine spins but hits on cylinders sporadically > > Engine makes a snapping noise every rotation > > Engine backfires through throttle body > > Engine eventually picks up on enough cylinders to keep itself running > > Engine eventually starts hitting on all cylinders and evens out. > > This only happens when I start the engine stone cold. > > The engine fires right up when warm. > > > > I have swapped computers (I have a spare), checked timing, spark plugs, > > wires, O2 sensor, crank angle sensor, thermowax sensor....no luck...any > > ideas? This is driving me nuts and I refuse to take the car in to a > > mechanic. > > > > Help me out guys. > > > > Tim > > > > > > |
Re: Starting Problem-87 Civic Si
If it's an electric fuel pump, they usually need a few seconds to
build up fuel pressure...that's normal. Sounds like it's working okay...ask a Honda tech at the dealer to be sure though (or look in your Haynes/Chilton/factory manual). John D. "Tim Channel" <channel@logicsouth.com> wrote in message news:<vhufq4n6568m46@corp.supernews.com>... > Still stumped.... > > I have swapped distributors including the cap, installed a new fuel filter, > swapped the fuel regulator....no luck the car still does not want to start > when cold and seems to miss and hesitate slightly when put under load once I > get to run > > I checked the fuel pump flow and I have a question....how fast should fuel > start to flow when the fuel return line is disconnected. The manual says > the pump should deliver 8 ounces in ten seconds but fuel doesn't flow for > the first 3 or 4 seconds once the pump is started through the ignition > switch (main relay terminal jumped). Is this a problem? Once fuel is > flowing, the pump delivers 8 ounces in ten seconds roughly. Should I be > chasing this at all? > > Any ideas? > > Tim > > "Tim Channel" <channel@logicsouth.com> wrote in message > news:vhc8efmbdi6bf6@corp.supernews.com... > > I'm stumped......I have a 1987 Civic Si hatchback that just started > > misbehaving when starting cold. This is what happens: > > > > Turn key to ignition position > > All the appropriate lights on the dash show, oil, pgm-fi, brake... > > Turn key to start position > > Engine spins but hits on cylinders sporadically > > Engine makes a snapping noise every rotation > > Engine backfires through throttle body > > Engine eventually picks up on enough cylinders to keep itself running > > Engine eventually starts hitting on all cylinders and evens out. > > This only happens when I start the engine stone cold. > > The engine fires right up when warm. > > > > I have swapped computers (I have a spare), checked timing, spark plugs, > > wires, O2 sensor, crank angle sensor, thermowax sensor....no luck...any > > ideas? This is driving me nuts and I refuse to take the car in to a > > mechanic. > > > > Help me out guys. > > > > Tim > > > > > > |
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