whats the exact difference between automatic and standard ecu's ? P75 to be exact . Like say im putting a engine in a 5 spd car i'm sure a automatic ecu will run the motor , but will i have any problems ?

 

bump

 

it will run but with a check engine light. the ecu helps control the shifting of the auto tranny.

off the top of my head, i dont think there are any fuel map diffrences. but i could be wrong. thats a question better left to someone who knows the maps.

 

yeah thats really what im wondering if the maps are gonna be different

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 89 JDM CRX &raquo;</TD></TR><TR><TD CLASS="quote">yeah thats really what im wondering if the maps are gonna be different</TD></TR></TABLE>


As far as I know, AT & MT maps slightly differ. AT ecu's are tuned to have better lowend power.

This guy I know, dyno tested a 5speed & AT B16A PR3 ecu's and the AT ecu actually made a little more power over the 5speed ecu. It wasn't much but his lowend-midrange was slightly better.

But if you didn't know, an AT P75 can be easily be reprogrammed to 5speed spec. You should be getting a code 19 if you run the ecu in a 5speed vehicle, but other than that code and an ealier redline, it will run the car no problem.

 

words from the ecu programming god himself.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Kamin &raquo;</TD></TR><TR><TD CLASS="quote">words from the ecu programming god himself. </TD></TR></TABLE>

...lol....whatever...