hey guys...yeah just great..i just had my master brake cylinder and front struts replaced like a week ago...and now??? fuel problems...ok i start my car up and it starts fine....it doesnt idle smoothly nemore...even when revved up or even if its warm....it idles like goes up to 2K rpm to 1K rpm...its messd. also..when i stop and accelerate...i push the throttle down...and nothing happens....even floored it doesnt send gas to the engine...it will kick in after 20 seconds later...also while running...and i floor the car...white smoke comes outta my tail pipe?? AHHH is this a fuel problem?? fuel pump...??? relay? what is it! thanks

can you just refresh on type of fuel system, ie K Jetronic , K Lamda or analog electronic

espec do you have a fuel distributor?

Try unplugging the mass flow sensor and starting the car and see if it idles better.

its a k jetronic system. i have no idea if it has a fuel distributor. all i know is its a 84 volvo 244 dl with a b23F engine. haha ill try disconnecting the air mass sensor...but do u think its a fuel pump? cause the fuel is still original.

It might be but look at other things first unless you have a fuel pressure guage to install on it.

yeah its not the fuel pump cause i was told that it either works or it doesnt. so their guess is the fuel pressure regulator. i have had this changed before. and before that my original pressure regulator was set too high...he reset it on my new one and now its too low that i am not getting ne throttle response at all. is there a way i can adjust the fuel pressure regulator? thanks

NO you can't adjust it.It is non adjustable.

I think you have another problem.

Try the mass flow sensor first.

Then you might want to check the fuel filter.

It could also be a bad throttle position sensor.

ok nvm then haha umm where the mass flow sensor at? is it the silver thing that is between the two black tubes? one coming from the throttle body and the other from the air box? how do i check it? and how do i check my fuel filter and throttle cable

Yes the mass flow sensor is in the hose between the throttle body and the Air filter.

Unplug the mass flow sensor and see if it runs better.

The Tps you will have to take measurements and all.

But the fuel filter you can just replace.

yeah i did that today and it still did the same thing.....black smoke is coming out of my tail pipe when giving the car gas. still not idling smoothly. no throttle response. my friend said blown head gasket? idk hope not.

conflicting advice here - you say it is K Jetronic - well I feel by 1984 it would at least be the K Lamda but question is IF it is still mech or electronic???

like is there a wire as well as fuel going to injector??

if it IS still a mechanical I would suspect the air flap thingo is stuck, ie the gas pedal on mech system is not DIRECTLY connected to system but simply allows more vacuum to open the air flapper [which meters the correct amount of fuel]

however black smoke could simply say mixture is too rich to fire - does problem go away once at correct temp?

well to be honest i have no idea what type it is. all i know its 84. maybe lambda. well it says sond on my dash lights. so i think its lambda. and the black smoke? it doesnt go away when temp warms up.

but I dont KNOW what system on 84

like IS there an elect wire to injector or not

The 1984 has electronic fuel injection.

Black smoke means running way to rich.

Do you have a digital multi meter?

no i do not. my friend is an **** and said that my head gasket is blown? must be an **** lol. idk i just get worked about all the possible problems with my car.

thanks for info Tech - so I will butt out completely as I have no experience with such

no i do not have a digital multi meter....dou think i have a blown head gasket? i sure hope not. yeah tahts what my mechanic said about the black smoke. running rich mixture. fuel pump i think is goin out..cause whenever i stop or accelerate i hear something bouncing around in my gas tank.