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Topic: Defeating PATS (Read 2866 times) previous topic - next topic

Defeating PATS

I have a drive train out of mercury grand marquis.  I would like to swap it into my nephews 4cyl stang this fall, does anybody know how to defeat the dreaded PATS?  I have read that it can create a little bit of a headache when performing 4.6l swaps.  Thanks.  Matt
Love Foxes, Birds or Stangs.

Defeating PATS

Reply #1 –
Older ecu, ford dealer, chip it.
Quote from: jcassity
I honestly dont think you could exceed the cost of a new car buy installing new *stock* parts everywhere in your coug our tbird. Its just plain impossible. You could revamp the entire drivetrain/engine/suspenstion and still come out ahead.
Hooligans! 
1988 Crown Vic wagon. 120K California car. Wifes grocery getter. (junked)
1987 Ford Thunderbird LX. 5.0. s.o., sn-95 t-5 and an f-150 clutch. Driven daily and going strong.
1986 cougar.
lilsammywasapunkrocker@yahoo.com

Defeating PATS

Reply #2 –
Yeah, I figure to have to chip it.  I plan and swapping over the pcm and harness to make it a cheap a swap as possible.  I just don't want to have to deal with the transponder and keys and .  A chip will allow me to burn it out of the equation.  or...... a older ecu out of a 95 bird..........
Love Foxes, Birds or Stangs.

Defeating PATS

Reply #3 –
I sent my 4.6 pcm to Ron Francis wiring and they removed the pats, egr, and emissions (second set of O2 sensors). They also set it up for a return type fuel system. Don't remember the exact cost but was around $200.00.

Defeating PATS

Reply #4 –
I would think a shop that installs remote starters can help you for cheap. Remote starters typically have an additional little module that tricks factory anti-theft systems into thinking the factory key is being used
2015 Mustang GT Premium - 5.0, 6-speed, Guard Green - too much awesome for one car

1988 5.0 Thunderbird :birdsmily: SOLD SEPT 11 2010: TC front clip/hood ♣ Body & paint completed Oct 2007 ♣ 3.55 TC rear end and front brakes ♣ TC interior ♣ CHE rear control arms (adjustable lowers) ♣ 2001 Bullitt springs ♣ Energy suspension poly busings ♣ Kenne Brown subframe connectors ♣ CWE engine mounts ♣ Thundercat sequential turn signals ♣ Explorer overhead console (temp/compass display) ♣ 2.25" off-road dual exhaust ♣ T-5 transmission swap completed Jan 2009 ♣

Defeating PATS

Reply #5 –
If it's prior to '03 you can get a equiv year CVPI ECM and that will disable PATs completely... After '03 there are other features that will require reprogramming, might as well have PATS disabled in the current ECM...

I have a '99 CVPI puter in my '98 Grand Marquis, the PATS light still blinks(goes ape shiznit for a few seconds) but it starts and runs fine on a $1.50 hardware store key... Been running that ECM since fall '10 with no issues at all...

BTW PATs only applies to '98 & up, prior GM/CV did not have feature... Problem with swapping a '97 for a '98 is i98 is first year with COP(Coil On Plug), so it won't work without changes..

As far as swapping, why would you want a oversized lump like the 4.6??? They are fine in their original environment(no that's not even true, I've driven '97/'98 Stangs, pitiful), I'd never consider a modular in anything else...

Defeating PATS

Reply #6 –
The Modular motor is free, so cheap.  My nephew needs to take a easy step up from his 2.3.  If I drop a 5.0 in, its not gonna be slow/weak/cheap.  It'll be a rocket.  The GrandMarquis is our old demo derby car.  Motor and trans and harness are still in good shape, so................
Love Foxes, Birds or Stangs.

Defeating PATS

Reply #7 –
If it's a '00-'03 would be a good idea to check timing chain guides as those years have issues(4.6 is a interference engine) & anything with the plastic thermostat housing is likely to crack... That POS is leaking on my '98 & car has 62K mi...

Defeating PATS

Reply #8 –
Quote from: TurboCoupe50;433516
As far as swapping, why would you want a oversized lump like the 4.6??? They are fine in their original environment(no that's not even true, I've driven '97/'98 Stangs, pitiful), I'd never consider a modular in anything else...

Really ?? I Hope you're not including the DOHCs in that  :beatyoass:          to each his own I guess.


86' T/C 4.6L DOHC
16' Chebby Cruze 1.4L Turbo
17’ Peterbilt 389 600hp 1850ftlb Trq 18spd

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Defeating PATS

Reply #9 –
Do the pi swap stuff on it. I'm not a 4.6 fan but i respect them. my buddies 99gt moves out pretty well. and my other buddies old 2.3 auto was about 1/2 the speed of a cfi 3.8...

88hp<260hp any day of the week...
Quote from: jcassity
I honestly dont think you could exceed the cost of a new car buy installing new *stock* parts everywhere in your coug our tbird. Its just plain impossible. You could revamp the entire drivetrain/engine/suspenstion and still come out ahead.
Hooligans! 
1988 Crown Vic wagon. 120K California car. Wifes grocery getter. (junked)
1987 Ford Thunderbird LX. 5.0. s.o., sn-95 t-5 and an f-150 clutch. Driven daily and going strong.
1986 cougar.
lilsammywasapunkrocker@yahoo.com

Defeating PATS

Reply #10 –
Quote from: 1BadBird;433542
Really ?? I Hope you're not including the DOHCs in that  :beatyoass:          to each his own I guess.


Yep that includes the DOHC, and I owned one...

Without hacking up the car, they are too big to fit in any early Ford unibody chassis... 

Defeating PATS

Reply #11 –
The swap motor is non PI, and I do know the benefits of the PI as I daily drive a yellow 2000 GT.  And yeah a NA 2.3 is just soooo slow.  Even with the roller cam swapped in and a "home made cold air intake"  its super duper slow.  But he did tell me he beat his buddies cavalier with it so maybe its not the worst engine out there.
Love Foxes, Birds or Stangs.