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Old 07-09-2008   #1
 
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Exclamation Performance Chip

Old ECU and ST chip

I have recently changed the ecu and keys on my Mk1 punto sporting 'S' reg (I have lost my only key). I have noticed a considerable power loss since I replaced the ECU. I have opened the old ECU and found that the chip has been changed to a ST chip (M27C512-12B3). Could this be the reason for the performance and can I just install the chip into the replacement ECU?
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Old 07-09-2008   #2
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Re: Performance Chip

you will be able to 'swap' the chips round fine, be very careful tho, those pins are very delicate.
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Old 09-09-2008   #3
 
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Re: Performance Chip

Thanks for the help, i am going to try it out over the weekend.

Any idea on how to seal the ECU after its been opened, i am thinking of appling silicon to the cover before closing it.
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Old 13-09-2008   #4
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Re: Performance Chip

yup that'll do it.

BUT i know on the 8v engines ecu, the imobilser code is stored in that chip - so you may be back to square one when you swap the chip over
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Old 14-09-2008   #5
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Re: Performance Chip

the code is not stored in the chip on the 16vs
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