is this a clog in my fuel lines

[1fstavant]

i hear the pump prime but theres like a syphoning sound coming also like its not sending enough fuel....any input appreciated

[kovalevandrew]

One easy way to see if the problem is before, or after the pump. Get a container, take off the pipe after the pump, turn ignition so the pump starts to pump and see if any fuel comes out. Sound like it's pumping air to me.

[1fstavant]

did that and no fuel came out at all...problem? new pump?

[Don Supreme]

Car starts and idles fine, right? Hard to believe these low volume tests will yield any conclusive results.

[kovalevandrew]

did that and no fuel came out at all...problem? new pump?

Take the line off before the pump and see if you can suck any fuel through, if you can't, something is stuck in there. If you can(don't swallow any, that stuff is nasty), then the pump is gone.

[1fstavant]

yea starts and idles fine but still leans when going wot....has gotten alot better with the installation of the inline and the new fuel pump sock...but still lean under load-maybe its a vacuum leak got an air tank doing that test later in the day and then my only other thought is an exhaust leak

[kovalevandrew]

yea starts and idles fine but still leans when going wot....has gotten alot better with the installation of the inline and the new fuel pump sock...but still lean under load-maybe its a vacuum leak got an air tank doing that test later in the day and then my only other thought is an exhaust leak

That's got me lost.

[1fstavant]

basically the car starts idles and cruises perfectly fine....half throttle the afrs are in the mid to high 11s but when i open it up and go wot the afrs jump up to mid to high 12s...
ive changed every aspect of my fueling....injectors, maf, pump, filter, even the rubber lines n the engine bay, i installed a inline fuel pump and the afrs are a little better but yet still not perfect

[kovalevandrew]

basically the car starts idles and cruises perfectly fine....half throttle the afrs are in the mid to high 11s but when i open it up and go wot the afrs jump up to mid to high 12s...
ive changed every aspect of my fueling....injectors, maf, pump, filter, even the rubber lines n the engine bay, i installed a inline fuel pump and the afrs are a little better but yet still not perfect

Maybe it's time to strip the fuel lines and check the tank out. Something definately ain't right.

[AudiA4_20T]

Lol sounds like your tune, did you forget about that?

[1fstavant]

talkd to arnold at pag parts...said i needed to crank the motor...did that and plenty of gas came out before the new inline and after...so my restriction is somewhere else if i have any

[kovalevandrew]

talkd to arnold at pag parts...said i needed to crank the motor...did that and plenty of gas came out before the new inline and after...so my restriction is somewhere else if i have any

That's a good thing... I think...

[1fstavant]

shouldnt be an issue since it was running fine before the rebuild and for a week after....about 4 days of wot

[zerb]

i really dont think that a mid to high 12 at wot is the worst thing in the world. like i told you the other day, if youre really that concerned about it, id get an egt gauge in the mani and see what the temps are, cause if the timing isnt out of control with that a.f ratio, youre going to be fine.

[1fstavant]

timing is right around 23 degrees btdc at wot

[zerb]

is it pulling any timing back at all?

[1fstavant]

nope not at all untill i close the throttle...one day ill show u some logs...

[zerb]

ya, logs would be good. you have them saved on your laptop? you have excel on said laptop?

[AudiA4_20T]

timing is right around 23 degrees btdc at wot

NICE, at least some software for our cars is aggressive...

TAPP FTW

[1fstavant]

yea jes's computer and some on mine

[1fstavant]

dont think i did the vacuum leak test right...or i have no vacuum leaks...i got to get to home depot and pick up pvc pipe ends...and then re do the test