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peter f peter f is offline
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Join Date: Feb 2008
Location: greece
Posts: 1,800
Quote:
Originally Posted by Flay View Post
Hmm, tomorrow my R1200S is going into the shop because of poor idling and occasional stalling issues.

Anything besides this causing similar symptoms?
Fast problem tracking (after checking coils, plugs, TPS, sync state etc etc) :

1. remove the rubber air intake trumpets (and Rapidbike L micro chips if installed - that is: go for the OEM L sensors). Put the ADORI module and deactivate Rabidbike, if installed.

2. plug in some throttle bodies sync device (digital read out a must).

3. unscrew both idle actuators and check (turn ignition on/off) that the pistons extend and retract (although this is only a rough indication of what's going on). Note: special tool is required (torx with hole).

4. start testing and use an infra red gun to measure exhaust header temperature (should be in a 5 oC max difference - a greater value indicates rich/lean difference due to differences in idle piston position).

5. if necessary use your finger to "disturb" the idle piston up-down movement (if it doesn't reset chances are that this is the faulty thing).

6. ....

PS1 : Throttle Body Sync using GS-911 - BMWSportTouring Forums

PS2: see Don Eilenberger reply
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R12S, black, ex Ohlins (now WP), full HPE, RB3

Last edited by peter f; 05-11-2010 at 06:10 AM..
Old 05-11-2010, 05:33 AM
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