can i adjust the fuel/air mixture?

nope you will need a power commander or a yosh box or similar to do that

have you got a tre fitted? it could be messing with the idle if its not a smart tre

smart tre and pc111 fitted Just hooked up the pc11 to the laptop to check the map and it was blank ??? so i've sent a map to it, runs better but not perfect. Interestingly, when its idling and I pull the clutch in the idle rises to around 1500 and smooths out...... Seems strange

when It's back on the road I'm going to Motrac down the road from me for a dyno session so hopefully they should sort all this out

Rich

I would be tempted to pull your tre off

pulling the clutch in smoothes the idle if the tre is causing the rough idle as I found out on my S

I'll try that tomorrow Stu, Hoping it's that simple tbh. I only bought it in July, it's an Ivans one too so it'll be going straight back for replacement!

Rich

an Ivans tre should be spot on to be honest

not what I wanted to hear Stu! but I'll take it off and try it, you never know haha

make sure the hose to the intake pressure sensor is connencted and not tleaking

ask me how I know :banghead

RichTLR said:

smart tre and pc111 fitted Just hooked up the pc11 to the laptop to check the map and it was blank ??? so i've sent a map to it, runs better but not perfect. Interestingly, when its idling and I pull the clutch in the idle rises to around 1500 and smooths out...... Seems strange
...
Rich

Click to expand...

Since you have a functional power commander with a laptop, you can put the A/F mixture wherever you want it by simply editing the map values that impact the idle.

However, FIRST, make sure the engine is up to operating temp - above 80C.

When the clutch lever is pulled in, the ECM ADDS fuel to the mix below ~3200 rpm when in gear.

When the gear selector is in NEUTRAL, if the idle is changing by simply pulling the clutch lever in, then that tells you that the ECM thinks it is still in gear. Therefore, it may be that the TRE is not a "smart" type (but Ivan's should be), or maybe it is a Smart TRE but has failed in some manner. :O A "Smart TRE" will allow the ECM to know when the tranny is in neutral.

When the transmission is in neutral, the position of the clutch lever should not impact the idle speed - with the caveat that the clutch does release some transmission load from the engine, so that difference may be heard. :coocoo