killmenow423

I ordered and installed my new walbro 255 fuel pump (Whick was alot easier then i thought) and My Car finally Started!

But now i can't keep it running, at first it would run fast then slow way down and do that over and over so i let it run and it got better and better but Now i can't keep it running for a few seconds without giving it some gas.

I think it might be the timing or spark plugs (im ordering new ones) but i don't know.

Does anyone have any suggestions?

mightymouse0x

too much fuel, who kinda mods u got? get a s-afc or some other type engine management, plus its good to have one anyways.

killmenow423

I hardly have any fuel in my tank, just enough to kepp the car running and the the hell is a s-afc?

Keep in mind this is the first time the car has been turned on in a long time i was mostly sleaning out all the crap out of the engine from it sitting so long

Sesshoumaru

iTrader: (1)

when was the last time u replaced ur fuel filter?

killmenow423

Um im preety sure my fuel pump came with a fuel filter.
If the fuel filter is the part of the fuel pump.

Project84

S-AFC is a air/fuel controller. It piggy backs off the stock ECU to allow you to adjust the amount of fuel delivered to the engine. The pump you are running delivers too much fuel to use with an otherwise stock setup. The stock pressure regulator will have a hard time keeping the pressure down, so when the injectors open up, more fuel will come out then what the ECU wanted to come out. That is how it was explained to me. Someone correct me if I am wrong

theonlygreat

fuel filter is not part of the fuel pump. it is in a small black cylinder on the fuel line in the engine bay, mounted to the firewall, somewhere below the brake booster and clutch master cylinder. best viewed from underneath the car. should be replaced at every 30K miles i think. maybe 50K not sure.

killmenow423

SO i shold get a S-AFC and replace my Fuel Filter?
Where can i get these?

Kenteth

careful with thebrackets though. Mine were rused through and both bolts broke off.I had to rerunthe lines up the firewall and mount a fabb'd bracket with zipties. Hey, at least its easy to get to now...

Fitness Stain

yeah.....relocating the fuel filter is something i plan on doing as well...

if its gotta be changed then it should be easy to get to in my opinion...

Sesshoumaru

iTrader: (1)

i have the same fuel pump and stock injector size and stock computer with stock FPR. I have no problem. The FPR should be able to handle the walbro if everthing is working correctly.

If he is POSITIVE he is running way too rich you could adjust the idle richness via the dashpot.

Perhaps when the old fuel pump was going a previous owner turned it WAY up.

Then there is also the issue of his injectors.

kiker14

iTrader: (1)

That's not quite right... ther IS a fuel filter that is part of the fuel pump. Our cars have two fuel filters, a high pressure and a low pressure filter. the high pressure is the one in the engine bay, the low pressure is indeed connected to the pump, and lies with it in the fuel tank. Anyway, I have also found that when I replaced my fuel filter it was easier to NOT take the entire bracket off, just loosen it a bit, and then take the fuel lines off of the engine, and slide the whole thing out from the bottom, then when the filter is taken off, remove the top fuel line from it, and do the same process when putting the new one in. Fuel line on filter, then fish it through to the engine. (this also prevents any breaking of the nuts on the fuel filter bracket)

killmenow423

I went autozone and they had nothing but a freaking oil filter so im going online today to order a bunch of parts.

But now my car dosent start again and i think it is because my engine is flooded so i have a few more questions.

How do I unflood the engine?
How do i adjust the idle richness via the dashpot?
And does anyone know how to ADJUST THE TIMING??

Sesshoumaru

iTrader: (1)

seach for the unflooding. the sticky's have it too me think.

I wouldn't adjust the dashpot until you get the car running and u eliminated all the other things.

Timing requires a light and the FSM show you how. That explaination can also be found on a search.

killmenow423

Now that i know how to unflood the engine ill do that first and i just ordered a fuel filter, air filter, and spark plugs. When i get those i install them and hope my car starts and runs.

Also another thing i noticed when it started and kept quiting it would only reach 2,000 rpm's.
What gives?
And i read the haynes manual to timit but i do not understand what the hell thier talking about and i have a light but i still don't Know how to time it.

killmenow423

Opps I forgot to ask once again Where to get one of thos S-AFC?

killmenow423

just to let you guys know i got it running or idleing at 500 rpms when i need it at 750.
Ran it till no more gas then figured out the antifreez was boiling so thier might be a leak.
Geting everything back to normal but i bought a new thermostat but when i went to put it in broke a bolt and need to get it out and re thread it.
So after i get this done i hope i can get it running good and time it.(which i don't now how to do)