ecu transfer

I have an '01 Honda Civic Ex The ECU went out so I bought one out of a
totaled '02 both are CA emmisions changed out now car won't start. Do I
need to reset somehow and if so how do I do it? Any help would be greatly
appreciated!

dbacker1 wrote:
> I have an '01 Honda Civic Ex The ECU went out so I bought one out of a
> totaled '02 both are CA emmisions changed out now car won't start. Do I
> need to reset somehow and if so how do I do it? Any help would be greatly
> appreciated!
>
how do you know the 02 was good? why did the old one go out?

dbacker1 wrote:
> I have an '01 Honda Civic Ex The ECU went out so I bought one out of a
> totaled '02 both are CA emmisions changed out now car won't start. Do I
> need to reset somehow and if so how do I do it? Any help would be greatly
> appreciated!


------------------------

What were the EXACT symptoms when the ECU went out? What did you try
before deciding to swap it?

'Curly'

"dbacker1" > wrote in
lkaboutautos.com:

> I have an '01 Honda Civic Ex The ECU went out


Honda ECMs do NOT "go out" unless damaged in collision or by moisture
(flood).

Honda sees maybe two or three actual-bad ECMs a year. The others all test
good and were pulled in error.


> so I bought one out of a
> totaled '02 both are CA emmisions changed out now car won't start.


You're mixing different years. Do you know if the ECM part number was the
same between the two? If not, the pinouts and/or signals may be different.

What were your symptoms? What was your reason for pulling the original ECM?



--
TeGGeR®

The Unofficial Honda/Acura FAQ
www.tegger.com/hondafaq/

TeGGeR=AE wrote:
> "dbacker1" > wrote in
> lkaboutautos.com:
>
> > I have an '01 Honda Civic Ex The ECU went out
>
>
> Honda ECMs do NOT "go out" unless damaged in collision or by moisture
> (flood).
>
> Honda sees maybe two or three actual-bad ECMs a year. The others all test
> good and were pulled in error.
>
>
> > so I bought one out of a
> > totaled '02 both are CA emmisions changed out now car won't start.
>
>
> You're mixing different years. Do you know if the ECM part number was the
> same between the two? If not, the pinouts and/or signals may be different.
>
> What were your symptoms? What was your reason for pulling the original EC=
M?
>
>
>
> --
> TeGGeR=AE
>
> The Unofficial Honda/Acura FAQ
> www.tegger.com/hondafaq/
----------------
>From playing around with several ECUs I can say that even amoung
cars made in the same model year there can be serious differences.

Unless you hae some way to duplicate every sensor and measure every
output signal, you can't test these babies in the field. Other then
the already mentioned flooding, the only other thing that can harm them
is a nearby lightning strike or a very close high power (in excess of
500Watts). These guys are very well protected!

Terry

THank you for your concerns my ecu problems the prior ecu was a
wrecking yard replacement from previous owner,don't know what caused
damage,I did verify that part numbers were a match, I contacted Honda and
they let me know that Immobilizer unit needed to be reprogramed due to new
ECU not reconizing the system or key's electronic signal, cost $100 @
dealership service center well worth it no problems so far thank you again
for your intrest in my question. So if anyone else ask's maybe my experince
with this can be passed on.

On Fri, 01 Jul 2005 20:23:27 -0700, jim beam >
wrote:

>dbacker1 wrote:
>> I have an '01 Honda Civic Ex The ECU went out so I bought one out of a
>> totaled '02 both are CA emmisions changed out now car won't start. Do I
>> need to reset somehow and if so how do I do it? Any help would be greatly
>> appreciated!
>>
>how do you know the 02 was good? why did the old one go out?



you need to have the immobilizer reprogrammed as all keys lost. you
can't just swap ecus anymore
Chip