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computer for 2002 thru 2004 Ford 4cy fuel injected SVT


HUTCH

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can you answer the question about the ECU's available having the PATS system and whether it is compatible with my car which does not have it.>  I have consulted numerous qualified people about this and have not found the answer so far.  Best info is that they are not compatible which is a problem in that that is all that we can find,

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the unit was sent out to guys that repair them and was returned as they had nothing like it and they were the ones that said it did not have the pats system  car was built around 2002

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If "the guys" had "nothing like it", how would they know what is on the vehicle?

 

If you cannot determine if the car has pats on your own (ecu installed or not), the car needs to go to someone who can.

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the unit was sent out to guys that repair them and was returned as they had nothing like it and they were the ones that said it did not have the pats system  car was built around 2002

 

We sent it to them  They inspected and this the result.  EASY

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I'm confused.  I assume the "unit" you are referring to is the ECU?  Is that right?  They inspected the ECU or they inspected the car?    

 

A 2002 Zetec SVT most likely has a PATS system.  In fact, my 2004 Zetec Caterham also originated from Sevens and Elans (shout out to Chris), and it has PATS.  If your key looks something like this, it most likely has a chip. 

Ford Transponder Key ( H73-PT, 692055 ) Key Blanks Ilco

 

 

The transceiver is most likely under the scuttle.  Look here for photos of what you're looking for:  https://ricksfreeautorepairadvice.com/ford-pats-antitheft-system/.  The car was starting at one time, but then began to fail to start, right?  Same thing with mine.  If the car sat for a long time (as mine had, and I think you mentioned in the beginning that yours also had), it may be as simple as cleaning the connections.  Go to https://www.focusfanatics.com/ and search keyword "PATS".  You will find a wealth of information on PATS problems and how others have solved them.  This saved the day for me, and my Seven starts right up every time now.

 

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the unit was sent out to guys that repair them and was returned as they had nothing like it and they were the ones that said it did not have the pats system  car was built

around 2002  as you can see we have an analogue key

key.jpg

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Kidding aside (don't call France just yet), a chip-less key does not mean you do not have pats. You can have a key and transceiver in the dash for the ecu to work and also a chip-less key that does everything else a key would do without a pats ecu.

 

If you traced the wires in the schematic I provided a while back, you might find a pats module and key inside the dash.

 

 

 

 

Edited by MV8
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It's a distributor; a component of non-computer controlled engines.  Im just being cute.

Ignore me. 

But if you wanted to put in an all mechanically timed engine,  the Kent crossflow is still a viable engine with lots of parts support and 55 years of tuning knowledge available. 

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17 hours ago, HUTCH said:

the unit was sent out to guys that repair them and was returned as they had nothing like it and they were the ones that said it did not have the pats system  car was built

around 2002  as you can see we have an analogue key

key.jpg

Aha!  What we have here is the chip key type that was paired to the PATS transceiver used on the 2000-2004 Ford Focus.  I have the same key type.  See that circle inset in the plastic molding?  The chip is under that.

key.jpg.342bef21d7f595b1d90a5a418200c02c.jpg

I am now even more convinced that your car has PATS, the transceiver is under the scuttle and your problem is that, for whatever reason, the transceiver has stopped recognizing the key.  It happens with this PATS system... A LOT!  If you read the advice on the focusfanatics.com site, you will see that the reset process sometimes takes several tries before it links up again.  Others say that, once the battery is reconnected, it was necessary to leave the key in "ON" position for 15 minutes before trying to start.  If you try all of these and are convinced that resetting isn't going to work, I'd recommend finding the transceiver and cleaning all connections.  If that doesn't work, I'd recommend talking to someone at a high-end custom car audio/security shop.  A buddy told me his story of dealing with this issue.  His was a Toyota, but that's beside the point.  The car was old, so dealers wouldn't event talk to him about it.  Mechanics he reached out to frankly just didn't want to bother with it.  He finally went to one of those audio stores and a kid showed him how to bypass it using two resistors and a volt meter.  About a $10 fix, and he never had a problem with PATS again.  I'll likely try that also just so I can avoid future issues with a PATS that I don't even want on the car.  

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I wouldn’t be so quick to jump to that. 
 

I have the same key and it doesn’t have a chip. Or at least even if it does that my car doesn’t need the chip. 
 

I have copied that key to a metal blank and use it just fine. 
 

0A1BAD42-A986-41DF-BF55-3BB9548BD51D.jpeg

 

IMG_20210410_001648378.jpg

 

IMG_20210410_105110500.jpg

Edited by Vovchandr
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actually located the ecu sensor box...not where I was looking for but it''s there.  Tried the disconnect the batery turn the key stuff without results.  How else can you get the sensor to operate properly?  makes sense to cover any easy stuff before blaming it on the ecu itself.

 

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8 minutes ago, HUTCH said:

 

actually located the ecu sensor box...not where I was looking for but it''s there.  Tried the disconnect the batery turn the key stuff without results.  How else can you get the sensor to operate properly?  makes sense to cover any easy stuff before blaming it on the ecu itself.

 

 

Can you take a picture?

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I see.  Hmm.  Well, I was told that there was a chip in it and that's were the chip is.  Perhaps I'm getting a bit ahead of myself because this sounds so similar to my own issue.  But, sounds like Hutch may have found the transceiver, so I guess sometimes there is a chip and sometimes not. 

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