another ECU Question

Is the ecu out of a 90-91 teg (non vtec) the same as one from a 90-91 civic/crx Si?

i dont think so, but dont qoute me on that.

nope..not sure of the designations.. but a 90-91 teg has a b18...while 90-91 si has a d16..

they're both OBD0 though..if that's your question

yeah I know there differnt motors, but sometimes differnt motors have the same ecu. Thanks

they will both plug into your stock harness but they are not the same ecu.

90-91 integra is a PR4. 6800 rpm rev limit, maps for a 1.8L DOHC.

90-91 CRX/Civic Si is a PM6. 7413 rpm rev limit, maps for a 1.6L SOHC.

all rights and means, a 90-91 PR4 can be used the same as a 90-91 PM6, provided you chip it with the correct maps. the electronics used in both chips are almost identical, so the same chipping method can be used. The microprocessor, however, uses a different codebase in stock form, but this is no problem as you can simply run PM6 codebase in a PR4 ECU.

...but.....why bother? pm6's are a dime a dozen ;)

The PR4 adds enough fuel for a 1.8L DOHC engine while a PM6 is only enough fuel for a 1.6L SOHC. The ecu is totally interchangable and can be used but with a pr4 on a 1.6l engine it will run very rich!

PM6's dime a dozen? Nope PM5s are def a penny for like 50 dozen..

lol

...but.....why bother? pm6's are a dime a dozen ;)

If you have access to a PR4 and not a PM6...

but you can get a pm6 for like $25-30 on ebay.. so why wouldnt you want your car to run properly, easily..instead of trying to remap a pr4?

cheap ecu's (http://search-completed.ebay.com/pm6-chip_Parts-Accessories_W0QQcatrefZC6QQcoactionZcompareQQcoent rypageZsearchQQcopagenumZ1QQfromZR10QQsacategoryZ6 028QQsatitleZpm6Q20Q2dchipQQsbrftogZ1QQsofocusZbsQ QsoitemstatusZ2QQsotrZ2)

accually curretly on ebay there running above around 80 at time of aution closing.

[QUOTE=marked001]but you can get a pm6 for like $25-30 on ebay.. so why wouldnt you want your car to run properly, easily..instead of trying to remap a pr4?
QUOTE]

what do you mean by that. remapping an ECU would make the car run exactly like a PM6. not everyone has a rom burner as i do, but i can make a PR4 act like any ECU in a matter of about 10 seconds.. the time it takes to flash an EEPROM.

accually curretly on ebay there running above around 80 at time of aution closing.

those are all closed auctions in the link I posted....

and 91civicdxdude....ya got me there ;)

:p :p