fuel problems

danny910 · Post by **danny910** » Fri Mar 24, 2006 8:38 pm

fuel pump only works when the engine is being started. when the engine starts & I release the key the fuel pump stops working. NEED HELP!!!!!

So Cal Mark · Post by **So Cal Mark** » Fri Mar 24, 2006 9:10 pm

need more info; yr, FI or carb, etc

Danno · Post by **Danno** » Fri Mar 24, 2006 9:10 pm

you are gonna have to wait for someone smart, but that almost certainly seems like a problem with your ignition and/or its wiring.

Danno · Post by **Danno** » Fri Mar 24, 2006 9:13 pm

and as I post, someone smart comes along, lol.

Mad-Machine · Post by **Mad-Machine** » Fri Mar 24, 2006 10:01 pm

if it is a carbed car.. the fuel pump should run whenever the ignition key is "on"

if it is a fuel injected car.. the pump will run initially to prime the system and then kick off until the flap in the airbox moves.

Mario · Post by **Mario** » Sat Mar 25, 2006 8:10 am

Mad-Machine wrote:if it is a carbed car.. the fuel pump should run whenever the ignition key is "on"

if it is a fuel injected car.. the pump will run initially to prime the system and then kick off until the flap in the airbox moves.

From what i've read on the various forums most fiats have been rewired to work this way. At least on my car the factory setup was to run the fuel pump when cranking or when there is oil pressure. This was a safety feature and not to save the engine if the oil pressure went away. There was a seperate oil pressure switch to turn on the pump.

Mario

bandit · Post by **bandit** » Sun Mar 26, 2006 9:42 am

Danny

We need to know what year car you have cause it might not be your
fuel pump I am thinking it is your points if it is a 76-78(1800) that
come with duel points one is for starting and the other is for after the
engine is running so if you turn the key and it starts up then dies as
soon as you let go of the Key that would be your Points .
If your car is FI (1980 half - 1985 ) and it dies as soon as you let go
of the Key then it must be your Ignition switch, fuse or relay .
Post us some more info about the year what has been done to the
car is it stock ?

Daniel