Anyone able to point me in the right direction, my mpi starts and idles at around 1500rpm but as it gets warmer the revs start to climb and when you rev it the revs seems to stay there or eventually come down a little bit but never to a normal idle. The butterfly has been checked and is all fine, new idle control valve has been fitted also, checked all vacuum pipes and cant see any splits or holes in them. Could it be the throttle position sensor ?
Revs Climbing
Started by
Craigm222
, Feb 16 2025 05:13 PM
5 replies to this topic
#2
Quinlan minor
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One Carb Or Two?
- Location: London
Posted 16 February 2025 - 07:15 PM
Mine did that, at one point. Stuck in traffic it would rev to 2500 RPM.
A new throttle cable, as recommended by Mike at Croydon Minis, fixed it.
#3
Craigm222
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Just On Tickover
- Location: Glasgow
Posted 21 February 2025 - 06:09 PM
Had a check its definitely not the cable as still does it even when the cable is disconnected
#4
mykweb
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Super Mini Mad
- Location: Edinburgh
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Posted 05 February 2026 - 03:30 PM
Had a check its definitely not the cable as still does it even when the cable is disconnected
Did you ever get this fixed Craig. I am having the same issue with my car.
Lot of air being drawn into the Idle Control Valve
#5
jamesquintin
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One Carb Or Two?
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Posted 06 February 2026 - 06:55 AM
I had a similar issue. turned out to be the temp sender cable:
https://www.minispar...h-bulletin-0043
Q
#6
MiniJosh92
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Camshaft & Stage Two Head
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Posted 06 February 2026 - 07:25 AM
You really need to have it on a code reader to see what is going on, throttle position readings etc. I have just had one that was similar, turned out to be a broken wire between the ecu and the throttle position sensor.
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