2003 Mercury Grand MArquis

[False]

What is the deal with HP Tuners listing only the 2005 and up Crown Vic and Grand Marquis?

Is there any support for a 2003? If not what is the problem and what mod can I make to use HP Tuner or alternatively what tuner can I use?

Thanks

[mstang_man]

What is the deal with HP Tuners listing only the 2005 and up Crown Vic and Grand Marquis?

Is there any support for a 2003? If not what is the problem and what mod can I make to use HP Tuner or alternatively what tuner can I use?

Thanks

if 4.6 it should be supported, can u post the Vin or 4 digit Strategy code of the door jam or pcm? You could always use a mustang calibration if not support under grand marquis. You will need an MPVI 2 to read it.

[decipha]

they deleted my post but if you need something hit me up

can't use a mustang strategy as it doesn't natively control the starter relay, hvac eadt, alternator regulator or variable speed fan and also has a different type pats c / e.

[False]

if 4.6 it should be supported, can u post the Vin or 4 digit Strategy code of the door jam or pcm? You could always use a mustang calibration if not support under grand marquis. You will need an MPVI 2 to read it.

ECD0 is the code.

VIN is 2MEFM74W93X645210

I know the 4.6 4 valve was in some 03-04 cars but mine is just same old 4.6 2v PI. The 2005 had better air box but really don't understand how that changes tuner compatibility.

[decipha]

05 is powerpc

04 is eec-v

two different processors