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Corsa Sport » Message Board » Help Zone, Modification and ICE Advice » code 31 crank sensor


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Author code 31 crank sensor
craig_s
Member
Registered: 5th Mar 06
Location: Birmingham Drives: mk4 astra gsi
User status: Offline
29th Sep 07 at 17:28   View User's Profile U2U Member Reply With Quote
as above im getting a fault code showing 31 crank sensor no signal/low rpm.yet the engine will run but it ticks over at about 1500-1600 rpm.the crank sensor was fine before the rebuild btw.any ideas?
Scotty C
Member
Registered: 6th Nov 05
Location: Kidderminster Drives: 1.6 16v Sport
User status: Offline
29th Sep 07 at 17:29   View User's Profile U2U Member Reply With Quote
ICV? TPS?
craig_s
Member
Registered: 5th Mar 06
Location: Birmingham Drives: mk4 astra gsi
User status: Offline
29th Sep 07 at 17:33   View User's Profile U2U Member Reply With Quote
nah they are fine.im getting 3 codes in all.93 low hall sensor voltage 94 high voltage hall sensor and 31.im just wondering if the other two could cause the crank sensor fault to come up.
Scotty C
Member
Registered: 6th Nov 05
Location: Kidderminster Drives: 1.6 16v Sport
User status: Offline
29th Sep 07 at 17:36   View User's Profile U2U Member Reply With Quote
Could be knock sensor. Get a new crank sensor.
Ste L
Member
Registered: 3rd Jul 06
Location: Manchester Drives: 106 16v Rallye
User status: Offline
29th Sep 07 at 17:40   View User's Profile U2U Member Reply With Quote
some ECU systems will also show code 31 because it doesn't see the engine turning over, this is not a fault because you haven't started the car
phil_sutton
Member
Registered: 8th Sep 07
Location: Nottingham
User status: Offline
29th Sep 07 at 18:39   View User's Profile U2U Member Reply With Quote
as above if its when the engine is off then its nothing to worry about
craig_s
Member
Registered: 5th Mar 06
Location: Birmingham Drives: mk4 astra gsi
User status: Offline
29th Sep 07 at 18:51   View User's Profile U2U Member Reply With Quote
ive just put anther dizzy on and im still getting the same codes
phil_sutton
Member
Registered: 8th Sep 07
Location: Nottingham
User status: Offline
29th Sep 07 at 19:38   View User's Profile U2U Member Reply With Quote
then its a loom or ecu fault? as that is the only other way those codes can pop up
mac1976
Member
Registered: 29th Dec 06
Location: tullibody , clackmannanshire
User status: Offline
29th Sep 07 at 21:38   View User's Profile U2U Member Reply With Quote
try and reset you ecu disconect your batt for a hour then try again

 
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