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> help is this ECU gonna work?, 7afe celi ecu in rolla (tranny swap)
post May 16, 2004 - 12:06 AM
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cleanrolla97dx



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ok check it out

i have a 97 corolla with the wonderful 7afe
i have an auto w/ overdrive
i am starting to collect parts to do a manual swap
i found this ECU on ebay
CLICK HERE TO SEE WHAT IM TALKING ABOUT

it says in the description that it will work in a 94-95 celi im an guessing that the ecu will not work due to the fact the ecu is OBD-I and my car is OBD-II
toyota changed over to OBD-II in 96 on the 7afe in the corolla's but im not sure if it was the same year for the celica's
i guess it would work as far as the transmission is concerned but the rest of the car wolud probably be fuct

BTW before any one asks why im getting an ECU for a tranny swap,
the 4 spd auto w/ od is electronically controlled bythe ECU it wont work without the ecu from a manual car


any help i greatly appreciated in advance

later,
JAY
 
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post May 17, 2004 - 11:38 AM
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S_C_M



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On just about all cars, AT ECUs have different fuel and ignition curves that are more suited to the characteristics of the transmission. Since an automatic has (generally) fewer gears than the manual, the engine will be under more load at different points than it would be with a manual, and the fuel curve and ignition timing are calibrated for this. You could probably run an auto ECU in a manual car without problems, but it _may_ not be ideal.

If your car is OBD2, you won't be able to run an OBD1 ECU without modifying your harness, or coming up with some kind of adapter harness like the Honda guys have for certain engine swaps. All cars imported or manufactured for the US had to comply with OBD2 standards in 1996.

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