Hi,I have prelude 92,JDM,P13 4-plug ECU,H22A,4WS,ABS,TCS,LSD,5MT,possible here use P28 or P72 ECU and use 4WS,ABS,TCS sistems??

 

the ecu itself is what controls the unit. the p28 and p72 will not control tcs. 4ws

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by raser5050 &raquo;</TD></TR><TR><TD CLASS="quote">Hi,I have prelude 92,JDM,P13 4-plug ECU,H22A,4WS,ABS,TCS,LSD,5MT,possible here use P28 or P72 ECU and use 4WS,ABS,TCS sistems??
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i dont understand the question.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by raser5050 &raquo;</TD></TR><TR><TD CLASS="quote">Hi,I have prelude 92,JDM,P13 4-plug ECU,H22A,4WS,ABS,TCS,LSD,5MT,possible here use P28 or P72 ECU and use 4WS,ABS,TCS sistems??
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i am trying to make sense of it too

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by raser5050 &raquo;</TD></TR><TR><TD CLASS="quote">Hi,I have prelude 92,JDM,P13 4-plug ECU,H22A,4WS,ABS,TCS,LSD,5MT,possible here use P28 or P72 ECU and use 4WS,ABS,TCS sistems??
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The poster has a 1992 JDM Prelude H22 with a 4 plug P13 ecu. The car has 4 wheel steering, Antilock brakes, Traction Control, Limited slip and is a 5 speed.

He want's to know if he can use a programmed P28 or P72 ecu in place of his 4 plug P13.

The answer is no because the 4 plug ecu controls the TCS and 4WS systems.

 

I distressed

 

i've heard you can use another ECU and it wont affect your 4WS, 4WS isr run on an independant ECU located in your trunk and dosnet tie into your main ECU. This I know for a fact since I changed mine.

Also i have almost the same setup up as the poster, H22A4 in a 4th gen Si, 4Ws, ABS, No LSD, but every thing seems to work A.O.K.

 

You can probably piggyback two ecus, but it will require some time with wiring diagrams and wire harnesses. You basically split the sensor inputs between the two ecus so each one knows what the car is doing, fake out the outputs you don't want so they don't throw codes and send the outputs you wantto use from each ecu to the compontent of the car you want to control. Good luck...

 

i forsee your wiring harness frying with trying to piggyback ecu's.

 

who have pinout information for P28 and p13 4-plug ECU???