OK so i had my engine rebuilt, and all.. Well i was told the crank position sensor needed to be replaced cause the car woulde crank over but not start... if it did start then it would only be cause i gave it some gas, but then it would run so ****y for like 4 seconds., and then die. So i finnaly got a NEW crankshaft position sensor, and it took like 3 cranks then started it idle'd at about 1000 rpm's kinda ruff.. then died after about 15 seconds.. And it wont start again.. Please help me... is it the timming or what.??

 

it could be anything, you need to rule out some thing first, such as correct firing order, fuel pressure, all sensors hooked up, timing being correct... etc. just gotta go over it all and make sure its right.
sometimes a fresh motor is a bitch to get fired up and you might have fouled the plugs by now, check those out.

 

hey thanks for the help man.... but um... how easy is all that or woulde it be better to have someone who realy knows cars look at it and pay for it... But ill check the plugs and stuff again.. that engine prob has about 150 miles on it....... if that helps....

 

Is this the 420a Eclipse? The 420a also uses a cam sensor that will cause the same issues btw, the crank sensor is the one that commonly goes out first...but since this is a new motor, I agree with Racer.
Definitely make sure all the sensors are plugged in.
Did you remove the motor then take it to a shop to rebuild it or did you take the entire car to have the motor rebuilt?

 

a loose connection on the throttle position sensor gave me a similar issue on a neon more than once. the vibration of the motor had it connecting randomly and it would spit & sputter then die

 

I should only hope that this is a 4g63, Silver... as he did at one point drive a TSi.. why downgrade?

 

yea i havnt checked teh cam angle sensor , um.. can u help me out finding were it is and how to get it out and replace it? thanks... but i had the whole car taken in and rebuilt the engine, but were is the throttle sensor? thnaks alot guys...

 

Oh ****, I read Racers sig and thought it was this guys... oops. Yo, xp8nt, you got a 420a or 4g63t??

 

lol oops...
4g63 doesnt have a crank sensor does it?
i was assuming 420a
is it turbo or non turbo?

 

Hes yet to tell us...but yes, it does have a CAS