Brief Encounter

iTrader: (6)

Hello everyone,

Over the past few days my car has been really acting up.
I did a simple spark plug change, and now it runs like ****.

Hesitation, at idle I have no throttle response,( basically have to put my foot to the floor to get high rpm's)

With the car off, Key in on position, I have 45lbs of fuel pressure ( Hypertech mechanical gauge).

When at WOT, The car feels like it is reallllly leaning out, gets to bout 4k then starts acting funny, and I can smell the exhaust( No Cats) and it smells odd after romping on it.

In HP tuners at idle my Injector PW goes anywhere from 3.1 to 3.3.


Could it be that I have a really bad tune on the vehicle that is causing the problem, or do I need a new Fuel pump and/ or injectors?

Mods are in sig...

thanks for the help.

juicedls1

iTrader: (9)

Sounds like a bad pump to me! check ur fuel filter and i have seen that some of the hoses inside ur take from the pump to the inlet on the top part of the module gets a hole and causes wierd fluctuation in the pressure but more so in the voulme of fuel!

Brief Encounter

iTrader: (6)

I also forget to add, that When I let off the gas, RPM's drop low and then picks back to where it should be.

I will be putting a electric Fuel Pressure gauge on there soon, and will report back asap.

koolaid_kid

iTrader: (21)

Isn't that pressure low for an LS1? That is what my LT1 runs at, and I know for certain that the LS1 runs higher than mine.

shoemike

iTrader: (25)

i had the fuel line come loose inside the tank once and it felt down on power and sputtered underload.
you should have close to 60 psi with key on car off.

jegan1989

iTrader: (-1)

i got a fuel system you wont max out for sale pm me for details