Honda Car Forum

What is the best way to find an ECU for a D15B VTEC or D15Z1 VTEC-E?

>From researching, the ECU would have to be a P28 or P72, correct?

The P28 and P72 ECU's state they are for a 1.6 liter VTEC engine. Are
the JDM 1.5 liter VTEC's actually USDM 1.6 liter VTEC engines?

This is getting more confusing.

Doug and Rene Brand wrote:
> What is the best way to find an ECU for a D15B VTEC or D15Z1 VTEC-E?
>
>>From researching, the ECU would have to be a P28 or P72, correct?
>
> The P28 and P72 ECU's state they are for a 1.6 liter VTEC engine. Are
> the JDM 1.5 liter VTEC's actually USDM 1.6 liter VTEC engines?
>
> This is getting more confusing.
>

the no-worry road is to just do a straight replacement. plug and play.
and it's going to be better than what you have now.

if you swap for vtec, for ecu's, you'll probably need a u.s. version
rather than jdm to pass smog. you can get them from junk yards
occasionally, by far the cheapest way to go! but generally not since
all the "2-ner" crowd mean they get picked clean pretty much
immediately. in that case, you'll be looking at ebay or craigslist and
paying a lot more.

regarding d15z1 vs. d16z6, it depends on whether you want performance or
economy. iirc, the d15z1 is the economy motor. either way, you
probably need the correct ecu to get the right injection map.

Doug and Rene Brand <brand@rushmore.com> wrote in
news:1183227725.310353.326880@k79g2000hse.googlegr oups.com:

> The engine I have now is a D15B7 1.5 liter 16 valve SOHC. What will
> the mileage difference be between a JDM 1.5 VTEC versus what I have?
>
> http://www.honda-tech.com/zerothread?id=2011708
>
>>From what I read from the link above, it sounds like all you need to
> do with this type of engine swap is to bypass the VTEC oil pressure
> switch. Is that true or do I need to get a VTEC ECU brain box?

the ECU needs the right programming for VTEC.
>
> Also, what is OBD1 and OBD2?
OBD2 had a lot more sensors to more accurately pinpoint problems.
Like 2 O2 sensors

>
> And what is the difference between a 1.5 VTEC-E economy and a 1.5
> VTEC?
>
different cam profiles. VTEC-E is optimized for economy,not power.


--
Jim Yanik
jyanik
at
kua.net