from what car is P84 ecu,

 

anyone?

 

never heard of it

i know of

PG7 : 88-89 Integra (all makes)
PM5 : 88-91 Civic/CRX DX
PM6*: 88-91 Civic/CRX SOHC Si
PM7 : 89-91 DOHC ZC (JDM 'EF' ECU)
PM8 : 88-91 CRX HF
PR3*: 89-91 JDM B16A EF8/9
PW0*: 89-91 JDM B16A EF8/9 DA6-XSi
PR4*: 90-91 Integra LS/GS
PS9 : 88-91 4 door civic EX Auto
P05 : 92-95 OBD-1 Civic CX
P06 : 92-95 OBD-1 Civic DX
P07 : 92-95 OBD-1 Civic VX
P0A : 94-95 OBD-1 Accord EX
P13* : 93-95 OBD-1 Prelude Vtec
P14 : 93-95 OBD-1 Prelude Si (non Vtec)
P28*: 92-95 OBD-1 Civic Si/Ex
P30*: 92-00 OBD-1 DelSol DOHC Vtec Si/EG SiR
P61*: 92-93 OBD-1 Integra GSR
P72*: 94-95 OBD-1 Integra GSR
P72 : 96-00 OBD-2 Integra GSR
P73 : 96-00 OBD-2 Integra Type-R (JDM & USDM)
P74/75*: 92-95 OBD-1 Integra LS/GS
P75 : 96-00 OBD-2 Integra LS/GS
P2N : 96+ OBD-2 Civic HX Coupe
P2P : 96+ OBD-2 Civic EX Coupe
P2T : 99+ OBD-? Civic Si Coupe
P5P : 97-00 OBD-2 Prelude Type-S (JDM ECU)