Sly_SRi
Premium Member
Registered: 9th Apr 04
Location: Reading, UK Drives: Corsa C
User status: Offline
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31 = Crank Speed Sensor or Crank Position Sensor
Says its getting no signal which would explain the lack of spark as it needs this to know when to spark.
But the actual sensor is brand new, and the wires going to the ECU are fine. And the other wire is earthed so how can i not be getting a signal?
I'm slightly confused by this.
As always, any help much appreciated 
Corsa C Z20Let
Black Sleeper Turbo Project
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myke
Member
Registered: 7th Feb 01
Location: High Wycombe, Buckinghamshire
User status: Offline
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you always get 31 unless you test with the engine running.
it means the sensor is getting no signal from the crank, which it wouldn't unless the engine was idling.
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Sly_SRi
Premium Member
Registered: 9th Apr 04
Location: Reading, UK Drives: Corsa C
User status: Offline
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oh right! didn't realize that.
That means theres no faults then? or will it only pick up on a fault when the engines started?
Corsa C Z20Let
Black Sleeper Turbo Project
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myke
Member
Registered: 7th Feb 01
Location: High Wycombe, Buckinghamshire
User status: Offline
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it may tell you if sensors are unplugged or what not, but i think some of them may not even start to register untill the engine is fired.
this has been going on for time now mate. why don't you call out an auto electrician?
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Mistamist
Member
Registered: 16th Jul 03
Location: Gillingham, Kent
User status: Offline
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whats the problem?
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Sly_SRi
Premium Member
Registered: 9th Apr 04
Location: Reading, UK Drives: Corsa C
User status: Offline
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basically i'm getting no spark...and can't find the problem.
Corsa C Z20Let
Black Sleeper Turbo Project
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Siberia
Member
Registered: 9th Oct 03
Location: Leprechaun Land Drives : Zafira GSI
User status: Offline
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did you see my reply in your other thread?
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Kurt
Member
Registered: 23rd Oct 05
Location: Hi
User status: Offline
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i had a similiar problem, my car wasnt firiing up, turned out to be intermittent distibutor and trigger box faults, had them both changed and it ran fine up until the time i crashed it
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myke
Member
Registered: 7th Feb 01
Location: High Wycombe, Buckinghamshire
User status: Offline
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you have got an amp on the coil haven't you ?
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RobHayes
Member
Registered: 6th Sep 03
Location: Lincolnshire
User status: Offline
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have you fitted the earth from the battery negative to the bulkhead just behind it? this was the problem i had, getting no spark. took me AGES to find it as well
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