whats the diffrence between ecu's?
p28 , p30 , p72 ? any others i missed im not sure?
what are all these diffrent kinds?
p06, p75, p08 etc....

can someone clairify this for me?

 

The popular OBD1's are... *drumroll*
93-95 USDM Del Sol: P30
92-95 USDM Civic Si: P28
92-93 USDM Integra GSR: P61
94-95 USDM Integra GSR: P72
There are others:
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote &raquo;</TD></TR><TR><TD CLASS="quote">
PG6 : 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
PR3 -J00 or J51 : 92 JDM Integra 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
P08 : 92-95 OBD-1 Civic D15 JDM
P0A : 94-95 OBD-1 Accord EX
P13 : 93-95 OBD-1 Prelude Vtec
P14 : 93-95 OBD-1 Prelude Si (non Vtec)
P27 : 92-95 OBD-1 EG JDM Civic 1600 sohc
P28 : 92-95 OBD-1 Civic Si/Ex
P30 : 92-95 OBD-1 DelSol DOHC Vtec Si/EG SiR
P54-G31 : 1997 Honda Accord 1.8 LS
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
P2E : 96+ OBD-2 Civic DX Coupe
P2M : 96+ OBD-2 NZ Civic SOHC VTEC
P2T : 99+ OBD-? Civic Si Coupe
P5P : 97-00 OBD-2 Prelude Type-S (JDM ECU)
PBA : 97+ US Acura 1.6EL
PCT : 98+ JDM ITR / CTR
PCX : 99+ OBD-? S2000
</TD></TR></TABLE>
Courtesy of ProstreetOnline.com.

 

also.. http://www.hondata.com has a list of all the ecu's.......

 

i saw an ecu on ebay, because i think my ecu might be damaged, but what does this mean:

92-95 Honda Civic EX/Si 1.6L SOHC VTEC (D16z6)
or
OBD1 1.6L DOHC VTEC (B16)
or
VTEC-converted Mini-Me setups
or
OBD1 converted D16Y8, B16A2 motors are also supported. B18C1 motors are also supported, but no <U>IAB control (secondary intake runners). </U>
what are secondary intake runners? and do the jdm b16's have that option? can someone explain?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote &raquo;</TD></TR><TR><TD CLASS="quote">92-95 Honda Civic EX/Si 1.6L SOHC VTEC (D16z6)</TD></TR></TABLE>
The 92-95 Civic EX's and Si's came with the D16z6 motor.
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote &raquo;</TD></TR><TR><TD CLASS="quote">OBD1 1.6L DOHC VTEC (B16)</TD></TR></TABLE>
This was the motor found in JDM CRX Si-R.
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote &raquo;</TD></TR><TR><TD CLASS="quote">VTEC-converted Mini-Me setups</TD></TR></TABLE>
An SOHC non-vtec bottom end paired with a vtec SOHC head is commonly referred to as a mini-me, its basically an SOHC version of the LS/B20vtec.
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote &raquo;</TD></TR><TR><TD CLASS="quote">OBD1 converted D16Y8, B16A2 motors are also supported. B18C1 motors are also supported, but no IAB control (secondary intake runners).
what are secondary intake runners? and do the jdm b16's have that option? can someone explain? </TD></TR></TABLE>
IAB's are the butterfly valves found in b18c1 intake manifolds. The b18c1 manifold is designed to increase low-end power, and thats what these butterflies (or secondaries, same thing) do. Closed until 5400rpm or so, and then they open up for top end power after that. AFAIK no other b-series IM has these butterfly valves, though I could be wrong. I know for sure that the jdm b16a1's IM does not have them.

 

thanks for clearing that up

OBD1 1.6L DOHC VTEC (B16)
arent these motors also in the del sol vtec?

 

I'm like 99% sure they are, but the vtec del sol's are b16a2 iirc. The one in the crx si-r is b16a1, but the specs are exactly the same. And they are both obd1's too. i dunno.
you're prolly right though, same engine.