JohnGS1100 Tuning Chip

[Antti]

rear tire difficult to keep on the road

 

[otruk]

I purchased a chip and a few days later a second one turned up! After putting the first one in the fuel pump stayed on, would like to add the bikes been off the road for 9 months. Changed back to the old chip and fired up first time. I hope that the second chip has the right mapping! Looking forward to it working.

 

[Roger 04 RT]

Hi John

I am at a 6th fuel tank on the stage 4 chip. Wondering if you have retested your bike on a dyno after a few fuel tanks to see if there would be any change. In my case the rich running and smelly idle is gone and the engine started pinging in some accelerations when it did not before. I have reset the DME and will redo a test. I am wondering if the extra fuel is not making the DME lean out the mixture in all conditions, over time.

Lee

That will be the lamda correction leaning the mixture back to stock.

+1 to BR

Lee, With the stock O2 sensor installed, a long term multiplicative trim is built in the closed loop area and applied everywhere. If your re-chip adds 8% fuel in the closed loop area, then the long term multiplicative trim settles around 0.92. That is applied everywhere, so 8% fuel is removed from the wide throttle angles too.

 

[Deleted account 200123001]

+1 to BR

Lee, With the stock O2 sensor installed, a long term multiplicative trim is built in the closed loop area and applied everywhere. If your re-chip adds 8% fuel in the closed loop area, then the long term multiplicative trim settles around 0.92. That is applied everywhere, so 8% fuel is removed from the wide throttle angles too.

That makes sense Roger, I've just cranked the XIED upto 8 to see if that cures the WOT pinging I'm getting, The correction time seems to take effect in around 200 miles as you have said previously.

The lambda correction has wiped out most of the gains Johns chip made and its been in about 1000 miles or more now.
That said the bike still seems better to me than on the stock chip.

I thought about wiring fuse 5 with an additional relay to reset the motronic everytime to mitigate the trims...then I thought nah!

Just out of curiosity is the 1100 ECU a straight swap since that doesnt have the lamda correction does it?

 

[JohnGS1100]

Hi John

I am at a 6th fuel tank on the stage 4 chip. Wondering if you have retested your bike on a dyno after a few fuel tanks to see if there would be any change. In my case the rich running and smelly idle is gone and the engine started pinging in some accelerations when it did not before. I have reset the DME and will redo a test. I am wondering if the extra fuel is not making the DME lean out the mixture in all conditions, over time.

Lee

Send me a pm, i resolved all (lean fuel) problems by the stage 7 chip, so i can send you the last update chip.

The new stage 7 is the final chip, has more improvements at maps :

1. Dweel map. This map give for more time, ignition to the sparks, more power, more final speed, no more pings !!
2. Atmospaire maps. This map still give richer AFR at mountains.
3. Temp map. This map still too give ricehr AFR when the engine is too hot (5+ lines), so the engine works smooth.

I be back by a dyno test soon, i make today all test to a dyno !!

..coming soon.

 

[Roger 04 RT]

When you make the dyno runs, you should set a static load in the rear wheel so that afr is equal to 14.7:1 before the moment the throttle is opened, otherwise the results aren't meaningful. If the bike you're testing has an O2 sensor make sure you ride it for several hundred miles before dyno testing so that the Motronic is fully adapted. Lastly, on bikes with O2 sensors, changing the oil temp table and barometric tables won't have any permanent effect.

Have you given any more thought to installing an LC-2?

 

[JohnGS1100]

Ok Roger i will do all tests at Saurday.

 

[Massive Lee]

Hi John.

Sent you a PM.

Lee

 

[JohnGS1100]

Hi Lee.
There is a problem on your pm box, i dont receive your pm.
You can send me a email to [email protected]
Thanks

 

[Massive Lee]

R1150GSA with 202,000 km.
New injectors. Rebuilt TBs. Sync'd every single month with an Harmonizer. Using US 91 Octane fuel and Stage 4 chip. I checked fuel pressure and it is correct at 3bars. Even under load.

I reset the DME by pulling fuse #5 for 30 minutes.

Under 5K RPM, engine feels good. But on the highway, above 5,5K RPM in 5th or 6th gear (shorter Adventure 6th gear), I experience heavy pinging. I don't want to destroy the engine and will revert to stock chip. Won't be fitting the AFXier module as mine is defective. So, I am returning to a fully stock system until solutions are found. I think the chip has too much timing advance for 91 US fuel. Maybe okay for 94.

BTW I had a great time blasting thru gravel roads this weekend. 400km of them at 80 to 100km/h. Sometimes (rarely) hard packed. Sometimes really loose, freshly graded, deep gravel. Not the 1150GS' best environment. Can't wait to finish reassembling my Africa Twin ;-)

60 of us, deep in the forest.

 

[Roger 04 RT]

Looks like a good ride. Why not send your AF-xied back to be fixed?

 

[Massive Lee]

Looks like a good ride. Why not send your AF-xied back to be fixed?

I contacted them and they will check it out. They will replace it if found faulty. That's great support. ;-)

Lee

 

[JohnGS1100]

R1150GSA with 202,000 km.
New injectors. Rebuilt TBs. Sync'd every single month with an Harmonizer. Using US 91 Octane fuel and Stage 4 chip. I checked fuel pressure and it is correct at 3bars. Even under load.

I reset the DME by pulling fuse #5 for 30 minutes.

Under 5K RPM, engine feels good. But on the highway, above 5,5K RPM in 5th or 6th gear (shorter Adventure 6th gear), I experience heavy pinging. I don't want to destroy the engine and will revert to stock chip. Won't be fitting the AFXier module as mine is defective. So, I am returning to a fully stock system until solutions are found. I think the chip has too much timing advance for 91 US fuel. Maybe okay for 94.

BTW I had a great time blasting thru gravel roads this weekend. 400km of them at 80 to 100km/h. Sometimes (rarely) hard packed. Sometimes really loose, freshly graded, deep gravel. Not the 1150GS' best environment. Can't wait to finish reassembling my Africa Twin ;-)

............

60 of us, deep in the forest..............

Lee i can make a chip for 91 octane petrols. Let me know your address please via pm, i will send it. Do not worry about pings.

 

[Massive Lee]

Lee i can make a chip for 91 octane petrols. Let me know your address please via pm, i will send it. Do not worry about pings.

Hey John

A chip for US 91 Octane is what I ordered. 91 octane is the standard Premium/Super fuel in North America. The engine only pings above 5,5K RPM, and it did also ping last month under load at lower RPM but that pinging disapeared when I reset the DME. So, in my case, either there is too much ignition advance at higher RPM, or not enough fuel. Dunno.

You sent me a stage 4 and stage 6 chips. Didn't try the stage 6.

PM don't seem to work BTW ;-)

Lee

 

[JohnGS1100]

I have a solution Lee do not worry please

 

[Deleted account 200123001]

John, what's the proposed solution? With the chip I bought from you my bike is also still pinging at higher rpm and large Throttle openings.

I'd like to be proven wrong but the lambda correction seems to do exactly what roger describes.

You assured me in your email there would be no pinging.

With a decat, after market end can, K&n and intake tube removed such a configuration needs a rich mixture in the high load and high rpm sites but not the lower sites otherwise the lambda correction does as Roger describes.

The only benefit that I can see is that the base maps on your chip are still slightly better than standard even after the lambda correction has done its thing.

 

[JohnGS1100]

I found the solution and i make a special chip for 89-91 octane like US petrols.
Sorry but US petrol is very very bad quality. You have pings by the stock chip too not only by my stage 4.

I made a chip by mod dweel map, better combustion and little faster timing advance than stock chip. Also the AFR it is richer than stock chip, be sure for that the stock maps are very very lean.

Also this special chip has mod atmospair and temp maps for richer AFR when the engine is hot (5+ lines). All these gives no pings by using low octane petrols.

I can send you this chip, you can see that you will have no pings and higher torque-more power & final speed by better consumption. I made all test this week and i will post soon all testes with dyno results..

 

[Roger 04 RT]

John, what's the proposed solution? With the chip I bought from you my bike is also still pinging at higher rpm and large Throttle openings.

I'd like to be proven wrong but the lambda correction seems to do exactly what roger describes.

You assured me in your email there would be no pinging.

With a decat, after market end can, K&n and intake tube removed such a configuration needs a rich mixture in the high load and high rpm sites but not the lower sites otherwise the lambda correction does as Roger describes.

The only benefit that I can see is that the base maps on your chip are still slightly better than standard even after the lambda correction has done its thing.

On the 1150s and 1100s, any changes made to the timing maps are in affected by lambda correction. So you might be noticing an improvement due to the ignition advance.

 

[Roger 04 RT]

I found the solution and i make a special chip for 89-91 octane like US petrols.
Sorry but US petrol is very very bad quality. You have pings by the stock chip too not only by my stage 4.

When you say "very very bad" what are you referring to? I run 93 octane US which is equivalent to your 98 octane. My bike with stock chip and shifted lambda never pings under any load condition.

I made a chip by mod dweel map, better combustion and little faster timing advance than stock chip. Also the AFR it is richer than stock chip, be sure for that the stock maps are very very lean.

The stock maps produce an AFR of 14.7:1 in the closed loop area and about 13:1 at WOT. Why do you call this "very very lean"?

What dwell time do you achieve, for dual-spark stick-coil and secondary coil. They should be different. How about single-spark, what dwell time do you achieve?

Also this special chip has mod atmospair and temp maps for richer AFR when the engine is hot (5+ lines). All these gives no pings by using low octane petrols.

On bikes with an O2 sensor, changing the atmosphere and temp maps won't change mixture richness once the bike has warmed up. If you installed an LC-2 you would see this.

Using a dyno, tailpipe O2 without adequate time for mixture adaptation you will see AFR change. But that change will be negated after a few hundred miles.

 

[Deleted account 200123001]

On bikes with an O2 sensor, changing the atmosphere and temp maps won't change mixture richness once the bike has warmed up. If you installed an LC-2 you would see this.

Using a dyno, tailpipe O2 without adequate time for mixture adaptation you will see AFR change. But that change will be negated after a few hundred miles.

Head/Wall interface.