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R1 throttle bodies / fueling
charlie_pank - 21/4/12 at 06:14 PM

I've got a 2005 R1 (5VY) engine and ECU powering my Caterham 7. It occasionally revs higher rather than lower when I lift my foot off the throttle and dis-engage the clutch simultaneously. My guess is that this is a throttle body balance/fueling issue which will either be fixed by resetting the TPS or balancing the throttle bodies or both.

Unfortunately life is not so simple for 2 reasons -
1. There are 2 throttles on the TBs, one is controlled by me, one is controlled by the ECU, I can't get my head around how I can balance the manual set while the ECU ones are above it and interfering - please explain - is the fueling controlled by the TPS or the MAP?
2. I don't have the original clocks for the bike, so I can't go through the method in the manual for resetting the TPS - is there a way I can do it without?