ECU replace

[pil]

Good day guys hope you could help me.
I bought a 2004 fz6, I was riding on a heavy rain and suddenly my bike died.
I checked everything and noticed my ECU has water coming out, since it was already repaired and was not sealed properly. Now i dry it and plug it in, still no luck.

- can I replace the ECU only? (Mine has the immo)
- can the ECU be repaired that it has a water damage.

Thank you guys

 

[Gary in NJ]

Electronics that have shorted due to water damage can be repaired, but you need to examine each circuit and measure component. If you can't do this yourself it is usually cost prohibitive.

There are many ECU's available on eBay.

 

[Motogiro]

Since you have the immobilizer set up you may be able to use a US, version and not have the theft protection. getting another ECU with immo will require a marriage ceremony. That ECU was already named Lazarus and I believe it would not be economically prudent to try to trouble shoot and repair it. It looks like there was a switching transistor replaced (probably a coil controller)

The only thing I would do with this is to blow dry with compressed air and put it in a bag of rice for a few days. Blow it off again and reinstall to see if it might have dried out enough to work. the ICs are key in this and the components may still be okay but residual moisture may be impeding logic function resulting in the ECU malfunctioning. If the ECU comes back to life reseal it!

The rice is a well known cell phone in the toilet trick, that sometime will save a phone. The rice acts like a desiccant that will suck up moisture.

 

[pil]

I have dried the ECU now using hair blower. I try to run the engine. But only i few fire and wont continue running. I try to run it holding the clutch it runs fine, but once i release the clutch the engine dies. Also when putting to gear even holding the clutch the engine dies as also. Hoping some one can help me with this. Do i really need to replace my ECU.

 

[pil]

Since you have the immobilizer set up you may be able to use a US, version and not have the theft protection. getting another ECU with immo will require a marriage ceremony. That ECU was already named Lazarus and I believe it would not be economically prudent to try to trouble shoot and repair it. It looks like there was a switching transistor replaced (probably a coil controller)

The only thing I would do with this is to blow dry with compressed air and put it in a bag of rice for a few days. Blow it off again and reinstall to see if it might have dried out enough to work. the ICs are key in this and the components may still be okay but residual moisture may be impeding logic function resulting in the ECU malfunctioning. If the ECU comes back to life reseal it!

The rice is a well known cell phone in the toilet trick, that sometime will save a phone. The rice acts like a desiccant that will suck up moisture.

Hi Sir. Can i use a ECU US version? Will it work?

 

[TownsendsFJR1300]

Sounds like your ECU thinks the side stand is DOWN and the kick stand switch activated.
(Bolted under the side stand)

It will cause the exact symptoms you describe..

.

 

[pil]

Sounds like your ECU thinks the side stand is DOWN and the kick stand switch activated.
(Bolted under the side stand)

It will cause the exact symptoms you describe..

.

What is the best thing to do now Sir?

 

[TownsendsFJR1300]

Pull the switch apart and clean. There is a small spring inside (and ball as I re-call).

I don't remember if un-plugging or jumping the switch by passes it...

Cliff, Gary?
@Motogiro @Gary in NJ

 

[pil]

Pull the switch apart and clean. There is a small spring inside (and ball as I re-call).

I don't remember if un-plugging or jumping the switch by passes it...

Cliff, Gary?
@Motogiro @Gary in NJ

Hi sir. I already tested my side stand switch. It works fine. It is on normally close.

 

[Gary in NJ]

If there is a short or open trace in the ECU, I could see how it would “think” that the side stand is down.

Here is a suggestion, inspect the connector at the ECU for corrosion, you may have an incomplete connection. Spray it with contact cleaner.

 

[pil]

Good Day. Thank you guys for your inputs. I already fixed my issue without replacing ECU.

 

[TownsendsFJR1300]

What was the fix??

.

 

[pil]

What was the fix??

.

I Just clean and removed the corrosions and resolder terminals that has burned marks and spraying contact cleaner.

 

[Cloggy]

I also had a problem with the ECU with water ingress, got it repaired but after about a year it would block after riding for a whole day. Good to hear your problem is fixed