I'll keep the question short. I am doing a 4V swap into my P71. If you guys were doing it, would you rather alter the harness or would you rather just swap out the PCM? I would have to get a tune either way.
I'll keep the question short. I am doing a 4V swap into my P71. If you guys were doing it, would you rather alter the harness or would you rather just swap out the PCM? I would have to get a tune either way.
2003 CVPI former Connecticut State Police Supervisor vehicle. 160,000 miles
Upgrades: 3.55 Posi, 200amp alternator and new decoupler, lighting relay mod, KYBs in the rear, LTC leather rear seats, 70mm FoMoCo throttle body, and MZT mod with MPT custom tunes.
DOHC swap to come! http://www.crownvic.net/ubbthreads/u...3076313&page=1
just alter your cv harness. I just did this to my 03 lx sport.
2003 cv sport marauder engine swap. then teksid 4.6 soon to be supercharged.
Rewire the stock harness & get a tune. That's it.
2005 Mercury S55
Saleen Supercharged 2V
im putting a 98 4v in my 02 crown vic sport. I read something about the fuel systems being different?
98 P71SOLD
2003 MARAUDER - BLACK ~ Race Car
2003 MARAUDER - DARK BLUE PEARL ~ DD
2002 Crown Vic Sport ~ top secret project car
What car is the 4v from?
Ex Panther Owner
Click the link in my sig... but in short, it is a '98 MkVIII block, '01 Cobra heads, '03 Marauder intake.
2003 CVPI former Connecticut State Police Supervisor vehicle. 160,000 miles
Upgrades: 3.55 Posi, 200amp alternator and new decoupler, lighting relay mod, KYBs in the rear, LTC leather rear seats, 70mm FoMoCo throttle body, and MZT mod with MPT custom tunes.
DOHC swap to come! http://www.crownvic.net/ubbthreads/u...3076313&page=1
Is the ECM return style or returnless? That is what will dictate which fuel rail to use.
Ex Panther Owner
Both fuel systems are returnless... but what bearing does that have on whether to splice the wiring harness or use the marauder PCM
2003 CVPI former Connecticut State Police Supervisor vehicle. 160,000 miles
Upgrades: 3.55 Posi, 200amp alternator and new decoupler, lighting relay mod, KYBs in the rear, LTC leather rear seats, 70mm FoMoCo throttle body, and MZT mod with MPT custom tunes.
DOHC swap to come! http://www.crownvic.net/ubbthreads/u...3076313&page=1
Oh.. okay... I think both the '98 and the '02 are both systems that have fuel returns. I would surmise they are the same system, so long as you are using the '98 4v fuel system.
2003 CVPI former Connecticut State Police Supervisor vehicle. 160,000 miles
Upgrades: 3.55 Posi, 200amp alternator and new decoupler, lighting relay mod, KYBs in the rear, LTC leather rear seats, 70mm FoMoCo throttle body, and MZT mod with MPT custom tunes.
DOHC swap to come! http://www.crownvic.net/ubbthreads/u...3076313&page=1
The pcm is programmable for either type of fuel system
If you are swapping engines, I suggest you do more research.
Sent from my iPhone using Tapatalk
Okay... we need to back up a few steps here gents. *I* am not asking about the fuel system. I am asking as to whether it is simpler to splice wiring or go with a Marauder PCM in a Vic...
Before someone starts spouting of the ever useful one word answer, let's make sure we are answering the question asked...
2003 CVPI former Connecticut State Police Supervisor vehicle. 160,000 miles
Upgrades: 3.55 Posi, 200amp alternator and new decoupler, lighting relay mod, KYBs in the rear, LTC leather rear seats, 70mm FoMoCo throttle body, and MZT mod with MPT custom tunes.
DOHC swap to come! http://www.crownvic.net/ubbthreads/u...3076313&page=1
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