so i have recently stroked the motor to 2.2 gsc kit, gsc ported head with over sized valves,gsc s2 cams, and ams f1-I manifold and 75mm boomba throttle body. im trying to get it started to break the motor in i changed the tune to 93 octane. which was done by ams but ive never ran it on it before always ran my c-16 tune but now when i start it it revs up to 3000 and leans out and the motor dies. is this because i have to much air and not enough feul or something mechanical? it has 42 psi of fuel so i know thats not the problem. i was wondering if u can make me a fuel map so i can break it in. some other mods i have are ams intercooler and piping with stock bov, ams full exhaust, stock ecu, stock turbo for now, ams fuel rail with pressure reg, walbro fuel pumpand rc 1000cc injectors, wideband shep trans and transfer case any help would be greatly appreciated after the motors broke in ams is going to tune it.

 

take it to a garage/tuner and get them to diagnose it and run it in... Thats an expensive motor, it would suck if it didn't get run in properly etc

 

who put the motor in for you? go back to them let them know whats going on

 

42psi of fuel doesn't mean you don't have a problem. That just means at idle you don't have a problem. Your issue of going lean could be as simple as a loose fuel fitting thats leaking as the demand for fuel goes up. If the motor is going lean, you should be checking all things having to do with fuel, like your connection points, your pump wiring (If changed), front O2 sensor, etc..

 

this is a classic example of why its a bad idea to change ANY parts that might effect tune when doing an engine build. very important a fresh motor starts up on a good tune. hope you didnt hurt the new engine.

 

How the idle? Rough? I had a similar problem when I built my 2.3L, turned out the the cam sensors installed were reversed. Might be a good idea just to check your cam sensors are installed in the correct positions. I heard they look almost the same, so it is easy mistake to make.

 

the idle is sparatic one time revs up to 3000 rite away then the next time its really low like 500rpm. any pics or segestions on cam angle sensor? i did the whole engine swap. do i just take the cover off the cam angle sensor and take the bolt out and flip it 180 degrees? if so both or just one of them? i sent chris black an email to hopefully make me a custom tone to break the motor in im not trying to start it till he gets back to me to much money invested in the motor to risk it! and there is no fuel leaks either

 

My question is, why are you letting a brand new engine idle?

 

not trying to at all just trying to get it to run so i can break the motor in. it doesnt run unless u feather the gas and then leans out and dies if i dnt

 

Ouch not something you should have attempted by yourself if that is indeed what happened. Good Luck with this hope all turns out well for you!

 

it should be put on load straight away.
take it to a dyno shop that you trust, get them to fix the problem and run it in on the dyno.