yosteff

iTrader: (1)

I just finished to reinstale my LS1 engine and after i start it, the engine idle at 3000RPM!!! when i give it some gaz , it accelerate then come back at 3000rpm...any idea of what is wrong....??? Also The AIR system is not plug but its look like to be the only thing that id not plugued!

And what is the side to instalation for the MAF i saw the arrow but are they point to the engine or to the air filter??

jrpimp00

iTrader: (17)

what was done to the engine? What vehicle is it in?We need more background to help. MAF arrow points to the engine (air flow path)

yosteff

iTrader: (1)

Its a LS1 from a 1998 firebird that i put in my 1996 Camaro...
I swaped EVERYTHING wiring mechanic EVERYTHING...
Now the problem is that when i start it ..its start at the first turn , but idle at 3000rpm....the only thing is that the air pump is not pluged...i will try it with the system pluged, but do you think it should be something else?...

crainholio

iTrader: (2)

You have a big vacuum leak, probably the power brake booster hose fitting.

litle88

iTrader: (20)

Or the Throttle position sensor is NO good!

yosteff

iTrader: (1)

Ok...everything was good running before!!! i check all my hose fitting tomorow!! and vacumm line...is the air system could be that?

crainholio

iTrader: (2)

On a fuel injected engine, an uncontrolled air leak will cause high idle...the bigger the leak, the higher the idle.

Once the IAC is maxed out trying to bring the idle down, more air leak equals more idle speed.

5.3LJimmy

iTrader: (10)

Make sure that your throttle cable is not holding the throttle body partially open.

jrob56

iTrader: (39)

Your AIR system should have nothing to do with it as it plugs in before the MAF and pumps fresh air into the exhaust manifolds. Sounds like a big vacuum leak or TPS sensor though like others have said.

letsrunem

iTrader: (15)

X2 Had the same problem.

EvilCamaroSS

iTrader: (8)

MAF arrow points to the engine, are you sure ur battery wasn't dead? when i r an my battery dead and jumped the car it idled at 3K rpms for a while until it charged up the battery enough, i did have to restart it and it was annoying cuz my exhaust is super loud.

yosteff

iTrader: (1)

Maybe..the batt is low. but before i made the swap it was fine with the low batt... i go check all my line...any area to point???

yosteff

iTrader: (1)

Yes got it...it was a smal hose in the right fender area...i think it is for the firebird haed light mechanisme...anywau i pluged it and vrooom it was alive and runing good...
thanks guys