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EVO Ti EPROM

AusRSV

AusRSV

Joined May 2008
2K Posts | 0+
Northern Territory AUSTRALIA
Can anyone on the zone please clarify wether the EVO Ti chip enables or dis-ables the ECU trimpots please? :dunno
If so, is the only way to base tune gas % by using the TB bypass screws.
Thank you in advance lads. :thumbup
Regards, Aj

My attempt at making some header sampler coils..now for the cylinder changeover block :D

Exhaust%20Gas%20Cooling%20Analyser%20Tubes.jpg
 
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I'm not sure Aus to be honnest, Spoonz or Fusebox may well know. I know the excellent Gabro chip enables the trim pots
 
LEGS said:
I'm not sure Aus to be honnest, Spoonz or Fusebox may well know. I know the excellent Gabro chip enables the trim pots
Click to expand...

G'day matey..yearh i heard this also..i have left a message for Gabro regarding his chip. :thumbup
I will soon know if the trim pots do jack..once i can get this onto a analyser pump. I will put a zero map in the commander and have a fiddle. If they are not enabled then i guess only way to set gas % @ idle is using the TB bypass screws i believe.
Regards, Aj
 
It deffo dissables them. I know cos I had one and tried. Changed to a Gabro which does activate them.
 
OK, further update...i have been talking with Gabro..he assures me that my RSV Titanium EVO 2001 chip has the trim pots enabled..he gives the thumbs up for this chip. There are other Ti chips that have them disabled.
Exclnt news. :D
 
i've got an rsv ti chip in mine and pretty certain it activates my trimpots
 
Thanks cheesy :thumbup a double confirmation.
 
Am I not correct in saying that all pre 2001 bikes with standard Eproms have the trimpots deactivated?

Thought it was as follows:

Frame number contains ZD4ME then you adjust CO at the TB's

Frame number contains ZD4RP then you adjust CO at the trim pots on the ECU.
 
Hmmm I must have had a rogue chip cos it deffo didnt activate the pots. Ill have to check my mate Rons. Ill let you know.
 
very early rsv's had trimpots enabled and then about 99 they got deactivated until the frame number mentioned above.

Not sure about the Ti chips but some of the versions were qouted by aprilia as only having 1 full map in them so i wonder if having the ecu wire cut might have an affect on those versions and the trim pots. :dunno

Aus don't go with aprilia's co settings. go with either 3.5% both cylinders or 3.5% front 4% rear if your bike is prone to running a bit warm.
Make sure you run the gas analyser for a good 8- 10 mins in fresh air to calibrate before starting. Don't run the bike until you do because the co will hang in the air for some time and muck up your reading.

The trim pots are VERY sensitive and take a while to react at the analyser so it's easy to over adjust. It's quite hard to get 100% spot on unless i'm lucky due to the trim sensitivity.
 
spoonz said:
very early rsv's had trimpots enabled and then about 99 they got deactivated until the frame number mentioned above.

Not sure about the Ti chips but some of the versions were qouted by aprilia as only having 1 full map in them so i wonder if having the ecu wire cut might have an affect on those versions and the trim pots. :dunno

Aus don't go with aprilia's co settings. go with either 3.5% both cylinders or 3.5% front 4% rear if your bike is prone to running a bit warm.
Make sure you run the gas analyser for a good 8- 10 mins in fresh air to calibrate before starting. Don't run the bike until you do because the co will hang in the air for some time and muck up your reading.

The trim pots are VERY sensitive and take a while to react at the analyser so it's easy to over adjust. It's quite hard to get 100% spot on unless i'm lucky due to the trim sensitivity.
Click to expand...

Thank you Spoonz for that info..noted in my diary to ensure calibration of gas analyser before sampling. :thumbup
Trim Pots @ present are in the standard vertical position for both cylinders still for now.
I have made a small adjustment to the TB screws taking them in slightly until the transition cleaned up. Front cyl. now at 1 1/4 turns out and Rear is out 3/4 turn.
The bike is running pretty damn well at this point, so will wait until after our wet season here to do full tune, gas, vac & trimpot fiddle and then re-dyno to write another map to check the difference etc ..
The humidity here and ambient air temp. is crap for getting the best tune...bloody tropics :pirate
Cheers & Repects:thumbup
 
spoonz said:
Not sure about the Ti chips but some of the versions were qouted by aprilia as only having 1 full map in them so i wonder if having the ecu wire cut might have an affect on those versions and the trim pots. :dunno
Click to expand...

I checked my ECU and it odes have the Ti Evo chip and the wire was already cut from pre-chip installation I guess. Will this affect anything and do the trim-pots do the same thing as adjusting at the TB's?
 
can't answer that cos the Ti chips seem to vary from what has been said.

Not exactly.

The trim pots adjust Co and bypass screws adjust vacuum if both are active but one will have an affect on the other. In general if you Co is correct your vac will be pretty close as well.
On models without active trim pots the bypass screws can be used to adjust Co. The Co always takes priority over vac.
 
Chips n Functions eh..a bloody dark art! To wire cut or not? I have heard that a cut wire can stop you from being able to use the trimpots and an aftermarket single map chip which has em ???? :dunno not sure of the truth...mine is still not cut :eatcorn
Aye the gas should be the most accurate, thanks mate!
 
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I had an email from Aprilia somewhere which i shall dig out about chips and wires.

Basically they said all of the Race chips have 1 map in both locations and they recommend not cutting the wire. (although don't say exactly why)

Pre 2003 rsv's in europe should have the wire cut on the standard chip as it has 2 maps.
Post 2002 USA and post 2003 Euro bikes have 1 map in both locations and do not require the wire to be cut on the standard chip.
Won't hurt if you cut it on those models but won't benefit you either.

As to the trim pots some people seem to have them active on Ti chips and some don't and i only specualte that might be ecu wire related. It may just be a certain batch of early chips or something.
 
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