hey guys,

i have a 98 passat 1.8t with the apr 1 bar ecu, i also have a 99.5 a4 1.8tqsm, with the stock ecu.
both ecu's have the same part number.....and apr lists the software program part number as the same for both cars....
will i run into any stupid problems by switching ecu's? i only ask because i am getting rid of the passat and dont want to give away a chip that i paid for, then turn around and buy another one for another car when i could have just swapped them....

so can i do it?
and if so .....do i disconnect the battery first.......(its been so long since i swapped an ecu....)


TIA for any help!

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99.5 A4 1.8t QMS
710n/k04/kinetic manifold/034 racepipe/VDO center vent boost gauge/slotted-drilled A8 rotors/hawk hps pads/GIAC ecu
COMING SOON: 19's/2.75" exhaust with highflow muffler/15%tint/lowered/FMIC/GIAC k04-pc-16 file/380cc injectors/5bar/CAI

I do not think they will be compatible...unless they are both FWD/with the same trans....you would have to change the drive type/trans with a vag-com

if they have the same part # there is a good chance that they could be interchangeable

and it is a good rule of thumb to disconnect the batt, before swappin ecu's

if they are both fwd 5spds then the ecu should be interchangeable (without having to change anything w a vag)

gl!

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