2005+ sv ecu? | GTAMotorcycle.com

2005+ sv ecu?

oomis

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My winter project was to stuff a 2007 SV1000 motor into a 2004 DL1000. Both use a 32 bit ECU, and others have reported a relatively easy swap.

Project's gone well, but at the tail end, I'm stumped.

Here's a summary of the swap:
SV ECU spliced into the DL1000 wiring harness. Wiring diagrams triple and quadruple checked.
SV1000 throttle bodies used - jammed into the DL1000 air box.
SV1000 motor bolted right in.
Timing is good.
Spark is good.
Spark comes at the right time (verified with timing light)

When it finally came to turning the motor over, however, things don't go so well. It turns over great, but all it does is backfire out the throttle bodies and out the exhaust. It's behaving as though the timing is off, but mechanically everything is fine and again, the spark is coming at the right time. I'm stumped, and my mechanic is stumped as well. My electrical work all seems to check out - and if I had screwed it up, it's doubtful that the bike would even turn over.

I'm running out of things to check and double check here, and I'm down to the ECU. I don't know what a bad ECU behaves like, so in addition to suggestions, I'm wondering if anyone has a 2005+ SV1000 that they wouldn't mind letting me swap out the ECU.

Any thoughts? This is a well-documented swap on the DL boards, so I shouldn't be breaking any new ground here...
 
This is probably not your problem, but if you hotwire/bypass the immobilizer on a 2006 R6 it backfires out the intake as well (and won't start obviously). Also happens if you use a US ECU on a canadian wiring harness, and vice versa as well.

Good luck with your project!

-Jamie M.
 
Check that you have the ignition the right way. Ie cyl 1 ignition coil is actually going to cyl 1, and that the ignition signal is going to the proper coils.
 
Check that you have the ignition the right way. Ie cyl 1 ignition coil is actually going to cyl 1, and that the ignition signal is going to the proper coils.

Coils are correct.
 
Check the cam and crank sensors and wiring next. It sounds like the ignition timing is right out to lunch. I would look at the custom harness again.
 

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