Fitting a chip

[mattneck(Beavis)]

reason for that is to make it a 2 letter code ecu instead of one..

oh and ive not killed it, the chip seems to be OK still 

[danny_p]

i just wondering dose the 2nd chip have to be there, obviously if the 2nd chip is present and has data on it'll bugger everything up.  but  empty v's no chip dose it make a differane ?

[carlos85]

is the second chip not a back-up?

[danny_p]

don't think so

[cняis]

surely theres no point to removing the 2nd chip?

the chip you replace on when you buy these 'higherpeaks' +6hp chips is the one on the MAIN board, beneath an H shaped white plastic holder/cover. theres a specific orientation to the chip denoted by a notch.

[danny_p]

thats what we were trying to work out if the 2nd chip did anythign in std form,   looks liek it's allways blank then   ok thats optimal just leave it allone

[cняis]

now im trying to work out which chip i have fitted ('performance' or OE), as neither had any markings on them as far as i know.... the one in my hand is blank... 

i know i took the 'performance' one back out when it started pinking but not sure whether i stuck it back in... 

[danny_p]

you can normaly tell by the numbers

the std chips are a 27c64 ( it'll be in the manuafacturers  part number on the chip ) but 27c256 chips are nigh on inpossible to locate now so the performance chip is quite likely to be a 27c128 or 27c256  ( most common as they are still redialy avalible )

if there both 27c64's  i chould read them for you and mark them

[cняis]

you can normaly tell by the numbers

the std chips are a 27c64 ( it'll be in the manuafacturers  part number on the chip ) but 27c256 chips are nigh on inpossible to locate now so the performance chip is quite likely to be a 27c128 or 27c256  ( most common as they are still redialy avalible )

if there both 27c64's  i chould read them for you and mark them

will whip the ECU out on the weekend and check the numbers, thanks. i now have a vac problem again too...