So I swap the auto transmission for a manual on my mustang. I swap the PCM, Harness, and everything related to the transmission except the neutral switch. My car won’t start with the Manual PCM but it will start and run with the auto PCM. Need help. The PCM does not read the car, I tried to plug it into a SCT x4 and it gives me error message. Everything have power in the car, lights, radio, windows, doors, etc. But the car won’t crank. NEED HELP!!!
2007 Mustang GT
- Thread starter Gonzo_14
- Start date
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08GT500
5 Year Member
Hi,
Have a flashing security light when Key On?
Did you bypass the neutral safety switch?
The car recognizes the Auto Trans key & eec, this is why it starts.
The new EEC still thinks it’s in the vehicle it was taken from,, the correct VIN# and has no idea why keys it doesn’t know are being run
I’m are not those paired to it. Sounds like it, therefore, Welcome to PATS! Let’s be more certain that it is PATS.
This FOB programming has nothing to do with PATS, it’s one entity & cannot be bypassed, worst case, a dealer or mobile PATS trained locksmith.
if that occurs- get 2+ made, prices are less.
This is not a no Crank, it’s turning over- not starting, correct?
Other reasons for “no start” the fuel pump priming with key on, have another listen at the pump while another’s cranking over- is the pump running while actively attempting to start the car?
You need to view & pull your codes from the EEC, what are they?... 1260
If it disallows codes to be pulled, try this..
Disconnect the battery cables, let the car sit for 5 Min’s, reconnect cables & it should let you pull codes, jot any others down, clear them, retry starting. 1221..
As there’s bound to be more “barriers”, as you move forward, some good Data:
www.stangnet.com
Post what you find,
Best!
John
Have a flashing security light when Key On?
Did you bypass the neutral safety switch?
The car recognizes the Auto Trans key & eec, this is why it starts.
The new EEC still thinks it’s in the vehicle it was taken from,, the correct VIN# and has no idea why keys it doesn’t know are being run
I’m are not those paired to it. Sounds like it, therefore, Welcome to PATS! Let’s be more certain that it is PATS.
This FOB programming has nothing to do with PATS, it’s one entity & cannot be bypassed, worst case, a dealer or mobile PATS trained locksmith.
if that occurs- get 2+ made, prices are less.
This is not a no Crank, it’s turning over- not starting, correct?
Other reasons for “no start” the fuel pump priming with key on, have another listen at the pump while another’s cranking over- is the pump running while actively attempting to start the car?
You need to view & pull your codes from the EEC, what are they?... 1260
If it disallows codes to be pulled, try this..
Disconnect the battery cables, let the car sit for 5 Min’s, reconnect cables & it should let you pull codes, jot any others down, clear them, retry starting. 1221..
As there’s bound to be more “barriers”, as you move forward, some good Data:
Auto to Manual Trans ''How to'' guide
This manual was completely lost. I found my notes and re-wrote it with help from a couple of guys that had previously used it and saved important information. Read it very carefully before getting yourself into this swap. (1) 5r3z*7a512*a> tube (hydraulic hose) (1) 5r3z*2455*b> pedal assy...
www.stangnet.com
Post what you find,
Best!
John
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