2002 Ford Mustang Gt Jack Roush Edition Stage 2 Motor Swap Problems

Im assuming it turns over but never fires?

There is a lot to check, TPS, Cam sensor on driver side, crank sensor on passenger side, did you hook the ground strap back up? Whats the compression look like? Is it a manual? I cant remember if there is a clutch sensor or not verifying the clutch cable is actually depressed.

I'm going to assume this is a crank with no start.

Turn the key on but do NOT crank. Confirm that the theft light goes out after a 3 second "prove out".

Does the check engine light go out during cranking? If so, then likely the PCM is getting a something from the CKP sensor.

Confirm there is +12 volts with the key on at each injector. Use a KNOWN good ground.

The fact that the motor runs off of brake cleaner almost "proves" there's a fuel related issue. For the 1999-2004 model years the fuel rail pressure sensor (FRPS) is a NO START sensor. That is a missing or bad FRPS will cause a no start condition. If this were my car I would check the electrical connections at the FRPS very closely. Look for bent/pushed pins. Dirty connections and so on.

A "noid" style tester can be used to confirm the firing pulse at each fuel injector.

A MAF sensor problem could also "cause" a no start condition. What happens if the MAF is disconnected?

Do you have an ODB2 scanner? IF we knew what the PCM "thinks" the values for:

• RPM's
• system battery voltage
• Fuel rail pressure
• MAF flow

Knowing these values could make real short work of this problem. Here's some information on an affordable Windows based ODB2 scanner.

ForScan ODB2 scanner w ELM327 USB
https://www.stangnet.com/mustang-forums/resources/forscan-odb2-scanner-w-elm327-usb.57/


1996+ Crank with no start check list
http://www.allfordmustangs.com/forums/4-6l-tech/336452-1997-mustang-wont-ignite.html#2984838

Note, The clutch switch is only used like a neutral safety switch. IE it only prevents cranking the motor unless the clutch pedal is depressed.