Just wont start

[JonPowell]

I got my RB25DET installed and the thing turns over. I have good compression across all cylinders, I checked all plugs and they do fire, fuel and air are fine, what could possibly stop the engine from running. It ran for 2 seconds REAL ROUGH and then that was it. Turns over great though. Please HELP ME!

[DAEDALUS]

Did you check the timing on the spark?

[JonPowell]

I am going to do that tomorrow, I left my timing light at the house and the car is at my shop. I tried fudging with the CAS but I could not get it to fire again anywhere I moved the sensor.

[HotWIRED]

The same thing is happening with mine. also dies right when I'm giving it gas. It works, then it doesn't. It doesn't stay running long enough to time it.

[YamaOni]

Try the CAS at center , And check the all conections and the grounds. Is the fuel pump kicking on and off? Also chack the MAF. Do you have a SAFC? Is it hooked up? If so check for RPM on the SAFC, If the engine is cranking and the SAFC RPM is 0 the CAS might be bad.

[JonPowell]

The fuel pump comes on for about 3-4 secs, then it shuts off. The CAS is good b/c all 6 spark plugs fire. Only stock electronics. I'll check MAF tomorrow.

[YamaOni]

Does it shut off or does it come to pressure and then shut off?

[JonPowell]

The pump builds the pressure then shuts off. While testing yesterday I actually had one of the fuel lines(between the filter & the motor) pop while I was attempting to start the car. I looked like it was damaged iternally because the outer layer split but the braiding inside was visibly ok. Does anyone know which color wires to jump to put the ECU into Daignostics Mode? I found the wires for the check engine lamp but I don't know which wires to initiate diagnostics.

[apex_7]

This probably won't help but:

I had the same problems w/ mine. My fuel lines were crossed so I switched them and it fired right up. Then it wouldn't stay running. I had a major boost leak in my intercooler- there was a whole in it. I bought a front mount and had the piping made at a muffler shop for $60. Runs strong now - I need to change my plugs though.

[JonPowell]

Thanks apex_7, I will try that today.

[JonPowell]

APEX IS THE MAN!!!!

Thanks for the idea, she fired right up!!!

THANKS!!

[Cattalbus]

okay guys newbie question what is CAS? please spell it out for the slow person. thanks.

[JonPowell]

Crank Angle Sensor...On FT of the exhaust cam.