avillamarin

I am trying to figure out why my car stalls.

I have a civic si 1999, with b16a2 head and b18c1. and it starts fine. after driving for a little bit and i have to stop my car stalls. the rev goes down and shuts off. sometimes it starts right away and sometimes it takes a little bit more pedal pump and crank time.

I change spark plugs have a MSD external coil, brand new sparks plugs wires and even a 255lph walboro gas pump.

any ideas??? please its annoying and looks bad me needing to restart the car in traffic

thanks!

The Guy

Does it rattle and shake like its misfiring at all?

boredom

sounds like a bad dizzy/wire combo

Fabrik8

First of all, has the car been tuned?

Second, why do you need an aftermarket fuel pump for no apparent reason?

Third, have you cleaned the idle air control valve?

Fourth, do you have a lightened flywheel?

575whpk20

double check the fuel pump..the 255 goes out alot been thru 3 of them ..can you hear the pump? or is the pump screaming? and are you at base fuel pressure

avillamarin

Well here we go.

Nope the car dont missfire at all thanks God. but it shakes like if it wasnt burning the fuel or running out of it.

First of all, has the car been tuned? yes by MRD

Second, why do you need an aftermarket fuel pump for no apparent reason? I am pushing over 500hp so i need it

Third, have you cleaned the idle air control valve? yes all clean

Fourth, do you have a lightened flywheel? nope stock flywheel.

another fact, i always had that issue, I heard that it might be the dizzy but want to be sure before making the purchuse

dirty c

check the air/idle mixture screw on top of the throttle body.

Fabrik8

Well, now that you've said you have more than just a B18 block with B16 head, why don't you list the rest of the mods to the car. You know, all the rest of the important information that you left out the first time...

575whpk20

after started and driving can you give it gas or this is just at idle..can you hear the pump? or is the pump screaming? and whats your afr at idle

avillamarin

in the mornings it starts like a baby, quick, as long as i wait after the pump stop making that noise otherwise will cranck and eventually start, but after that if i stop then i have to give some gas in order to start. and it idles fine, just when i am driving like from norfolk to VA BCH without boosting just normal driving once i stop it start stalling on me. and sometimes i stop using my ebrake and rev the car to avoid stalling but sometimes it works other it just stalls