Bad 2-1-2 ECU? need proof, please help

[jonvan]

I have heard on this site of some bad ECU's (the ones installed with exhaust upgrade). I upgraded my exhaust before I took delivery of bike and am curious if I have a "bad" one (lack of power). I don't have a reference point.

I asked my dealer and he laughed (really) at me because I heard it on the internet. He checked the service bulletin's and seems to want to stop there.

MY QUESTION: How do I know difinitively that I have a faulty (lack of power) ECU? Is there documented proof of this problem?

Please help


Jon V

[johnchypermotard]

i am making an assumption that you are referring to a dp ecu upgrade ...

1. replace the questionable dp ecu with your stock ecu, and ride the bike. if the lack of power issue is resolved, this is a pretty good indication that the dp ecu is faulty.

2. get the bike on a dyno with the dp ecu and do a run. then install the stock ecu and do a run. compare the two run graphs ... this will provide you with documented proof to get the dp ecu replaced under warranty if it is faulty.

if after doing either/both of the above, the bike's issues are not identified/resolved, ask your dealer if they reset the TPS when they installed the ecu and exhaust.


best of luck with your dealer ... i know i would change dealers if they laughed at me when i asked a question on warranty of a bike i purchased from them.

[ZX10R]

Put it on the dyno, like johchypermotard wrote.

[bbenn75820]

Unhook your exhaust valve cables at the servo and road test. Mine picked up considerable power. I had a pre-termi installation as a reference. I am in the process of getting a new ECU. I hope.

[Abarth]

At what milage is it "safe" to put the bike on a dyno? I assume not before the 1000 km (600 miles?) point is passed?

[ZX10R]

You can even break it in on a dyno.

http://www.mototuneusa.com/break_in_secrets.htm