Starting Issue

[tsirovy]

My last post I talked about changing rod bearings. Decided to drop a new longblock in and save the hassles. I bought a 1992 SC400 longblock with 50,000 miles. Finalized everything today and try to start.

It turns and acts like its starting.. but wont fire up. When i attempt to start there is a "fume like vapor" that smells like gasoline coming out of the intake system right before the air filter. Any takes?

 

[tsirovy]

I checked all wires and plugs and they fire just great. I just wonder if because I am using the new engines fuel injectors that with the old wire harness they arent working? Idk.

 

[Lextreme II]

I am glad you took our advice. Anyway, double check the crank or cam sensors make sure they are plug in. Did mess with the timing belt too?

 

[tsirovy]

yes. shortest cut is longest. I didnt mess with the timing belt but can the crank sensor cause the problem of not starting? I know the cam sensors are plugged in. It has every component of starting.. fuel spark air. Im going to check it now. the new injectors are 3250-50020.. my original injectors are 3250-50010 btw

 

[Lextreme II]

http://www.lextreme.com/7mge.html

http://lextreme.com/forums/showthread.php?t=1648&highlight=23250-50020

Try this.... Put your right foot on the gas pedal and push it all the way down(WOT) and hold it while turning the key. Try to start the car that way.

Your LS came orginally with 220 cc and now you have 251cc not much different but try the method above. By the way, the injectors are 23250-50010 and 23250-50020 one of your number is missing.

 

[tsirovy]

crank sensor tests out and is clean. Tried the above method with no results. the only things that didnt match up on the conversion were the knock sensor connectors. 'old harness is square and new sensor is round'--but it still connected well and was snug. Plus I have no cel codes yet. This is crazy

 

[tsirovy]

Got my car started right up after changing the timing belt with a new one.