New key arrived. Now about those FOBs.

Barry,

That's a multifunctional tool you show in your picture. I have seen it used to pass sound tech at Laguna Seca raceway
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Felix adjusted my ECUs last year...
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FBB, my first car was an MGB. The exhaust pipes under the car would rust through very easily. I was always patching them with soda cans and hose clamps. It got to be where when the car was on a lift, all you saw was Coca-Cola, Seven-Up and Mountain Dew!

That MGB had the best immobilizer ever. When I parked the car, I took the distributor rotor with me.

 

Thats off an old FORD T bird

 

So it is! $46 for a '67 T-bird tank on eBay. It should be listed in the F355 Cross-Reference/Interchangeable Parts thread...
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So should the tomato juice can.

 

I cant remember what we used to use, there were so may of those cans back then with all kinds of juice

I should have had a V8 LOL

 

In effect, you have to go fast with the pin.

Have you been able to enter the pin?

 

No. I suspect my immobilizer has been reprogrammed at some point but I've not yet given up

 

Well, since we are on the subject... 98 355 6 speed which I drove all last year in the good weather without problems, 6000 miles: now with 30k miles. I do not have the PIN, came with a fob and Gobble cloned a spare for me, got a blank key Ricambi and they work.

Now I have been having problems with fob talking to the ECU. I noticed it was taking longer than usual, more button pressing to get the immobilzer to chirp. I went to work and stopped for coffee and got stranded the other day when I could not get the ECU to chirp. Sat there pressing the button for several minutes without response and the cloned fob didnt work either. I got a ride into work and came back in the afternoon and after sitting there for a couple minutes, it finally chirped and the car started. Now I'm not confident enough it drive it .
Does that sound like rolling codes taking their time or is it the ECU?

 

Those who use cloned FOBs can comment on the rolling code issue but this is why I said above that having a correctly functioning alarm ECU with known and verified PIN is valuable and should be checked and verified by owners, sellers and buyers.

I would consider taking the necessary steps to get a verified PIN and a set of FOBs to match.

 

I assume you have replaced the battery in the FOB?

 

OK I remember now

We used old Maxwell House Coffee Cans because they were heavier then the stock ones

 

or this
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Yes, fob with new battery.

 

That looks expensive.

 

I had a clone made by Gobble. Didn't work great in the beginning: the old fob would work consistently but it would take many presses to get the new clone to work.

Now the old fob can't seem to catch a rolling code despite pressing the button hundreds of times. Gobble's clone works fine, just like the original used to. Any suggestions to get the old fob to work. I figure once it does, I will keep them on the same key ring and alternate.