Tea bag filter

[seth]

I picked up some crappy fuel and it made my bike run terrible untill I got the injectors cleaned and serviced now sweet as a sweet thing .
I used the company in the linked thread injector clean.
Good luck hopefully you'll get this sorted asap.

[KiwiCol]

TPS or secondary TPS Mick?  They tell the ecu where the throttle is (how far open) and thus how much fuel to fire at it.  If one or the other has gone bung, this could well result the in overfueling you've mentioned.
If the ecu thinks the throttle is wide open & firing max fuel at the cyl, when you do open it up it runs correct again because you've got the right fuel / air mix for a while.

Anyway, just a thought, check the TPS (s) 

[seth]

To check you TPS follow the link and read the thread on how to check it.

http://gsx1400owners.org/forum/index.php?topic=263.0

[Mick_J]

TPS or secondary TPS Mick?  They tell the ecu where the throttle is (how far open) and thus how much fuel to fire at it.  If one or the other has gone bung, this could well result the in overfueling you've mentioned.
If the ecu thinks the throttle is wide open & firing max fuel at the cyl, when you do open it up it runs correct again because you've got the right fuel / air mix for a while.

Anyway, just a thought, check the TPS (s)

Thanks Col but I've done that and both were in spec although I couldn't find out how to check the STPS actuator.

[Blubber]

Well yesterday I took the bike apart and checked/cleaned everything relavent, disconnected all the plugs/sockets and cleaned all the contacts with contact cleaner and replaced the plugs.  When I took the plugs out they were all very badly sooted up as was the exhaust tail pipe which tells me the bike is running very rich confirmed by the ecoomy plumetting to less than 30mpg.  Took it out for a test this morning and it was fine until it warmed up and then it started coughing and finally died as I pulled into my drive, quickly checking the tail pipe it was all sooty again.  This  suggests to me that the bike thnks everything is fine but the ECU thinks there is a need for more fuel which soots up the plugs and causes the coughing as the motor is flooding, full throttle stops this, so I am now looking at the temp sensors or ECU as I get no error codes but the ECU is pooring fuel into the engine.  I have ruled out plugs (replaced), coils (replaced) and injectors as all plus are equally sooty.  Will keep you posted but any help would be appreiciated.

Best check your sensors / wiring ( temp + pressure air and oil ) if they are faulty.. the secondary throttle valves could be acting up to..
even if you don't get an error message.
Looks like something is set to a fail safe mode 

[Mick_J]

Still got the problem, am borrowing an ECU next week to rule that out/in but I am seriously considering buying another bike so I can do back to back measurements to fix this problem as it's driving me nuts.  I'm lucky that this is not my only bike as the sun is out a lot now.

[Notty]

Still got the problem, am borrowing an ECU next week to rule that out/in but I am seriously considering buying another bike so I can do back to back measurements to fix this problem as it's driving me nuts.  I'm lucky that this is not my only bike as the sun is out a lot now.

I am not that far from North Somerset just over the water if you want to use my bike to check values etc 
@mjgt

[Mick_J]

Still got the problem, am borrowing an ECU next week to rule that out/in but I am seriously considering buying another bike so I can do back to back measurements to fix this problem as it's driving me nuts.  I'm lucky that this is not my only bike as the sun is out a lot now.

I am not that far from North Somerset just over the water if you want to use my bike to check values etc 
@mjgt

Thanks very much for the offer Notty but it could take a few days.

[Mick_J]

Borrowing an ECU option is out as the chipped key will not allow it.  Stripped the bike down again yesterday and removed all vacuum hoses and checked them, all fine.  Removed both temp sensors (iat & eot) and tested them, both good but the air temp has a range up to 110 degrees C, who the hell is going out on the bike when the air temp is 110    Tried to test air pressure sensors (iap & ap) but could not get a change in reading when I tried to change the air pressure by sucking/blowing into it so will investigate these further.  After that I will start tracing individual wires from their sensors to the ecu.  A new ECU is £1400 plus a recode of the key by a dealer, cant find any second hand yet.  I feel like 

[Andre]

@mjgt
Here is one for 120 € on German ebay-classifieds as part of lock-set (with immobilizer). https://www.ebay-kleinanzeigen.de/s-anzeige/suzuki-gsx-1400-schlosssatz-ecu-cdi-steuergeraet-schluessel/789968484-306-4578

"Here the translation of the ad's text: Complete lock set with 2 keys. The controller is needed on newer models where the immobilizer is already present.
Shipping and paypal possible"

Assume he hasn't found a buyer yet due to a stupid engraving on the fuel cap.

If you need help in communicating with him I'll be happy to assist.

Edit: just saw that he also has air pressure sensors (iap & ap) for 5€ (both together as it looks to me) https://www.ebay-kleinanzeigen.de/s-anzeige/suzuki-gsx-1400-luftsensor-luftdrucksensor-sensor-airbox/779773486-306-4578

[Mick_J]

Thanks Andre, I am going to test the sensors today while connected to the bike to see what their o/p voltage is as the book does not give a resistance reading.  If I need them I will send you a PM.

[mlivkovich]

Last 100 kms my 14 run like sh$t! Cleaned tea bag and now it runs like a charm cleaned it just 3000km ago  . Too early to get clogged

[KiwiCol]

Bloody hell!  I wonder why it was running like s$$t then? 
Where ya been filling up?  a farmers paddock?

[mlivkovich]

Bloody hell!  I wonder why it was running like s$$t then? 
Where ya been filling up?  a farmers paddock?

Don't know what to say....just 3000kms ago it was like new! Also, tank was clean and now is rusted
Next winter  my plan is to paint fuel tank but first I will have to protect it from rust from inside.

[seth]

It might be worth adding an inline filter to the fuel pump feed line at least you'll see any crud building up before it gets to the teabag filter.