CAt Code plugs?? Boring but please help..

[jack.pe]

Guys,

I did a plug chop today and the plugs were mostly white, (running y pieve and straight through pipe..)especially the tips and eletrodes. i have read that removing the cat code plug reverts to a standard setting and makes the bike run richer so was going to try but some of the psots have confused me, the cat code plug, is that the plug that goes into the Y piece? or is that the lambda sensor? or are they the same thing??
If I remove the plug do i have to reset the ECu? if so how???

Thanks.. going touring this saturday to italy and need to get it sorted before then...

Jack

 

[ferguscawley]

The cat code plug is a little palstic box about 1" square that resembles a relay that is located in your fusebox under the seat.

The plug that goes into the y piece is the lambda sensor.

Here is what one looks like on an 1100

 

[littleredrooster]

ignition on, and before you start the engine twist the throttle around to full and then let it go to 'snap' back - twice. The motronic unit memory will be reset.

Yup, but don't forget to pull fuse 5 out first to power the Moronic down, then as above.

 

[jack.pe]

Thanks guys,

I had a look and actually there is no cat code plug, it was either removed previously or never there....since I have also found drilled holes in the airbox sides, to get more air entering, I asssume the bike has been fiddled with and the cat code was reemoved...however the bike still seems to run lean... so is my only solution to spen 200 quid on a chip or techlusion box?
Anyone got a chip?

 

[Hadrian]

What year is your bike ?

Try Panzer Patrol as I think he still has a chip that he wants to sell

 

[jack.pe]

Lambda removal!!!

Guys, I spoke to MOTOWORKS and explained the problem and they said they recommend removing or disconnecting the lambda probe as this will ricHen all the settings and this will workj well with y piece and aftermarket exausts...!!! any thoughts on this?? i will try it tonight...

Jack

 

[ferguscawley]

Jack

Chances are your bike will run like shit if you do this. Try it if you wish but if you leave the probe cable connected and tie it up under the seat or tank, the closed loop control system will see a high oxygen content and will pour fuel into your engine in order to reduce it. Expect abismal fuel consumption and rough running.
If you disconnect the lambda probe cables from the loom, then it may be OK. Try it and see.
On the early 1100's that have lambda probes, a CO potentiometer must be fitted to take the place of the lambda probe. I'm not sure if this applies to the 1150 or not. Do a search on 'potentiometer' for some threads on this subject.
Hope this helps

Ferg

 

[Hadrian]

My bike has the Lambda probe disconnected under the tank as part of installing the chip.
This is to help stop the backfire, as to running rough or high fuel comnsumption I have done about 10K since this mod and the only change is that when it is cold it backfires once it is warm this goes away.
Fuel consumption stayed the same. But this is with a chip fitted

 

[ktm520]

The BMW fuel injection system incorporates the use of a oxygen sensor to control fuel delivery in the highway cruise operating range.The ECU or brain of the fuel injection system only looks at the oxygen sensor range in this range, and it is known as "closed-loop ." In closed-loop, the oxygen sensor (being an emission based, automotive product) pulls the fuel mixture down to an air-fuel ratio of 14.7 to 1, known as stoichiometric ( the theoretical most complete combustion burn ). This lean condition combined with the light loads of cruising create a less than optimum driving experience.

 

[Sergeant Pluck]

I had a look and actually there is no cat code plug, it was either removed previously or never there....since I have also found drilled holes in the airbox sides, to get more air entering, I asssume the bike has been fiddled with and the cat code was reemoved...however the bike still seems to run lean... so is my only solution to spen 200 quid on a chip or techlusion box?

are you sure the bike isn't already chipped? sounds like someones gone to a fair bit of trouble to wring a few bhp's out of the machine...

you can richen up your mixture by upping the TPS setting to somewhere near .400mv.

click 'links' above and get the instructions - they're in the oilhead maintenance manual.

unless you do have a chip - leave the lamdba in i'd say, as the moronic will be expecting a reading from it...

pr0ne

 

[jack.pe]

TPS

Thanks for the advice about the TPS, read the articles but it seems that they say to use the red white wire as a reding and that only affects up to the first 1/8th throttle travel so cant see how that would improve the situation?? since it would still be lean on al other wthrottle settings?? am I wrong?

Jack