help is needed

[qtr22]

Hi guys

i have 1500 sierra 2000 model

and i changed the engine from stock to lq9.

and i have 2 code appears >> cam shaft sensor input ,,, ect

and crank shaft sensor input ,,, ect

and im dont no if the camshaft that in the LQ9 is stock cam or not
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i have a 600HP plan

a bought GT2-3 cam and p-1 Procharger.. put still i didn't take the fuel inj.

what kind of injctors will fit in my engine?

[RedHeartbeat]

did you maybe pinch the wiring between the bellhousing and the block? Don't ask me how I know to check this.

You did connect the crank sensor connection just above the starter? Didn't damage the wires while dropping the starter? Don't ask me how I know.

[RedHeartbeat]

Did you remember to connect the cam sensor behind the intake manifold?

[qtr22]

actully i checked everything i changed the camsensor twice even the cranksensor

but what do u mean about (( pinch the wiring between the bellhousing and the block ))??

[RedHeartbeat]

didn't have the cam sensor wires clear when installing the engine and smashed the wires when the transmission was bolted to the engine and broke wires inside the shielding. Engine wouldn't start when this happened. Have you checked for 5v at the sensors with the key on? Do you have all the grounds connected to the block?

[qtr22]

the car is running but in low RPM it will be in rich fuel . in high RPM it will be lean

in starting the engine i show hold the starter for few seconds then it will run or some times it will blow a big sound

when the engine is running , it will be Idlling like a big cam.

[RedHeartbeat]

Sounds like bad oxygen sensors. Did you get the tune updated for the larger engine?

[qtr22]

yup

but still the same

the tuner said maybe the camshaft is not the stock one.

[RedHeartbeat]

There's one way to find out, pull it.

[qtr22]

There's one way to find out, pull it.

allready i bought the GT2-3 lingenfilter cam

and i'm waiting to collecet all the thing that i need the i will take it to the garadge

the remaining is >> TCI kit

fuel inj.. 42 or higher

fuel pump

elec. fan

and i'm thinking to get smaller pully for higher boost , but i'm little fread to do it

beacouse in in middle east and the normal temp. now 40C

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how many PSI do U thing i could reach but in safety mode?

i planning to get 10-13 psi