matty g

so a ps9 is the way to go then.

only problem is what motors use them over in the u.k.
i`m not expecting you guys over the pond to know but if you did that would be f.kin great

88crxSi

any 88-91 auto d-series MPFI should work no?

TurboEF9

Well, see, 88-89 ECUs are limited. The only one I can think of is PG7.. which doesn't have external EEPROM.

PS9 wasn't introduced until 90-91.. as well as PR4.

Semnos

try a Civic Concerto with MPFI and automatic. it would have a D16 engine in it.

Chris Harris

Not exactly sure "HOW" an auto PR4 outputs to the tranny...i do know that if you chip a PR4 manual or automatic with a manual program (ROM) it will run in a manual car. But I dont not believe the reverse of that is true.

The Auto PR4 will not work like the PS9 though...or I am sure PGMFI would be working on that...and they aren't.

TurboEF9

I'll ask XDEep to chime in and see what he has to say on it..

XDEep

it'll work but i havent been able to get rid of code 12: EGR - exhaust gas recirculation lift valve and don't know which, if any, pin will get rid of it. snip pin 28 to get rid of code 19: Automatic transmission lockup control valve
- otherwise when you tap on the brake it stalls the motor.

also be aware that the 90 pr4 has an external PA sensor, while the 91 has it internally. you can run a 91 in a 90 but a 90 in a 91 probably will throw code 13: BARO - atmospheric pressure sensor.

TurboEF9

Can that be corrected with code? ..say PM7 based code?

XDEep

what code? i doubt it. someone would have to locate it explicitly.

TurboEF9

PM7 has external PA, and is very similar to PM6.. and we've been using it as an alternative on PR4s..

..but, I've personally never tested this, as I don't own an Integra.


.....so, someone with a PR4 _and_ an Integra, should test it.