help wanted please
ive just bought a subaru impreza wrx 1992 k reg saloon,when you start it up the engine check light stays on for about 4 miles before going out,previous owner says it needs a service could this be the reason why its on? also where the hell is the diagnostic socket?? ive searched and searched and cant find it.many thanks in advance.
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To check it you will need a 'Select Monitor' I think the port is under the driver side dash or you can check here www.JollyGreenMonster.com - Engine management specialist on the help page on how to check for error codes.
It doesn't come on because it needs a service it comes on becasue it's registered a fault. |
thank you very much for that info.....just did the test and its telling me the KNOCK SENSOR is at fault...where is it and what does it do? many thanks.
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the knock sensor picks up detination/knock and sends a signal to the ecu to pull timing out if you are a running poor grade fuel etc.....
it is located under the inlet manifold, its a black round sensor with 2 wires comming from it and has a bolt through the middle of it. |
Most probably needs replacing.
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Originally Posted by raptornexus
(Post 7674097)
thank you very much for that info.....just did the test and its telling me the KNOCK SENSOR is at fault...where is it and what does it do? many thanks.
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If the knock sensor is detecting knock surely thats a fault to investigate ? its not saying youre sensor is faulty and to replace it , its doing a job in telling you theres det/knock detected !
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Originally Posted by young'n wrx
(Post 7674556)
If the knock sensor is detecting knock surely thats a fault to investigate ? its not saying youre sensor is faulty and to replace it , its doing a job in telling you theres det/knock detected !
The reason the cel is on is because it is sending info to the ecu and that info is out of range hence the cel. |
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