new motor won't crank

[awdv8killer]

its a 95 gst with a rebuilt 6 bolt stroker motor. its a been 4 years since this thing last ran. I wired in a cas that came off a running car, swithed the coil wires, changed the four wires in the ecu, i have fuel(pulled the whole fuel rail out and checked all injectors), I have spark to all four plugs, and its in time!!!!! I have a maf-t translator that is four years old and the lights come on and go when i turn the key forward..so im assuming it still works. I have taking the cas off and flipped it over and i even got another one and tried it and still no luck... sometimes it will act like its bout to then nothing. and a brand new fuel pump and filter... can someone help me out maybe im missing something,,

 

[DSM_PWR]

So it wont crank over at all?

Do you hear the starter? or Relay click from inside?

 

[95blackGsTurbo]

Won't crank or won't start? Check the starter to see if it's getting voltage. In either case get that gas out of there and put in fresh 93 or even higher octane if possible to burn off any deposits.

 

[awdv8killer]

sorry guys the starter works new red top battery and gas tank has been cleaned out and put three gallons of 93

 

[DSM_PWR]

Still didnt answer the question..

Are you saying it doesnt crank over? or start?

 

[awdv8killer]

yes when i turn the key the motor will crank over and over but not no start up it acts like it is bout to it stops.

 

[DSM_PWR]

Compression? Have you tried one yet? i know you said its rebuilt but you never know..

Also what about the CAS Base timing?

 

[awdv8killer]

for compression i am going to check it just got to one to check probably tomorrow and base timing.... how can i check that when it wont even start up

 

[DSM_PWR]

Adjust the CAS while cranking the motor over...

Ive seen motors not start for something as dumb as the BISS Screw being screwed in too far

 

[fst_4g63]

I would say add more fuel in the tank,I recently had a similar problem. My gauge read a little over 1/4 tank when it was not starting anymore. I added more gas then I was rocking.

Darren

 

[awdv8killer]

i have tried adjust the cas as it has been started, tried to differents one actually, and for the gas i poured the gas striaght in where the fuel pump is before i put the pump in so i know it has enough...

 

[DSMITHGSX]

i had a the same prob. but my seal was bad in my tb but i hooked up a boost leak tester pushed air out of the tps sensor so if i were u i would try the same if not that then i would check for spark

 

[awdv8killer]

i have spark but to double check i am going to do a boost leak test and compression test.. but i still think it should still start up for a sec or something its really getting nerve racking

 

[DeadsEvolution1]

Ok so you have fuel, spark, but it won't start. first thing I'd do ok is pull the CAS off but leave the sensor attached to it. now turn your key to the on position on the car but don't try to start it just to on where all your gauge lights come on. now go to the CAS and spin it over by hand you should hear your fuel pump turn on, you should see spark if you have a spark plug out, and while spinning that you should feel your injectors pulsing. If you do not see, feel, or hear anything the CAS Is bad. Now if you do, make sure all your sensors are plugged in. I know you probably have but just make sure make a clean sweep over it. If you still can't get it to start try a different MAF. All I can think of with fuel spark and the injectors working in theory the car should fire. But a sensor could be wrong

 

[DSMITHGSX]

i dont know when my car didnt start it was due to my tps and it wouldnt start..bc two much air would be sucking it and it would rev very high.. so just let us know what the results are when u do a test..

 

[DeadsEvolution1]

Correct me if I am wrong but you can not get an accurate compression test without the motor at operating temperature right?!?!? Also the only thing the TPS set wrong did to my car was not let it idle but it started atleast.

 

[96eclipzGsT]

Correct me if I am wrong but you can not get an accurate compression test without the motor at operating temperature right?!?!? Also the only thing the TPS set wrong did to my car was not let it idle but it started atleast.

It will be enough to make sure your compression is over 75 which is what it needs to fire.

 

[awdv8killer]

sorry guys i havent been back on been real but got the car started ecu went bad, and got a 97 ecu and swithed the wiring back and firing order and she crunk right up.