DCIKEV: Have just changed my sensor as per your instructions, no problems apart from i broke the retaining clip for the electrical connection on top of no4 coil, Have done a few trips and management light still on, without access to a reader how can i get the light to go out ? Thanks
An ignition coil (also called a spark coil) is an induction coil in an automobile's ignition system which transforms a storage battery's 12 volts to the thousands of volts needed to spark the spark plugs.
This specific form of the autotransformer, together with the contact breaker, converts low voltage from a battery into the high voltage required by spark plugs in an internal combustion engine.
In older vehicles a single (large) coil would serve all the spark plugs via the ignition distributor.
In modern systems, the distributor is omitted and ignition is instead electronically controlled. Much smaller coils are used with one coil for each spark plug or one coil serving two spark plugs (so two coils in a four-cylinder car). These coils may be remote-mounted or they may be placed on top of the spark plug (coil-on-plug or Direct Ignition). Where one coil serves two spark plugs (in two cylinders), it is through the "wasted spark" system. In this arrangement the coil generates two sparks per cycle to both the cylinders. The fuel in the cylinder that is nearing the end of its compression stroke is ignited, whereas the spark in its companion that is nearing the end of its exhaust stroke has no effect. The wasted spark system is more reliable than a single coil system with a distributor and cheaper than coil-on-plug.
Where the coils are remote mounted they may all be contained in a single moulded block with multiple high-tension terminals. This is commonly called a coil-pack.
if the cam sensor was at fault the light should go out on it's own, that's if it was the cause of the light to come on in the first place,failing that it is worthwhile purchasing an obd code reader to properly identify the problem and cancel the lights out .
Currently in dcikev's garage: 2004 scenic 1.9dci,2004 megane 1.6vvt
DCIKEV: I popped into my local garage and he found the fault code free of charge on his reader, and was the cam sensor, have since used the information to change it myself. Cant really go back and ask to use theres again. Can you recommend a decent but not too expensive reader i can buy? found a few on ebay but prices range from 25 -150 quid, dont really want waste money buying an expensive one if a cheaper will do the same job ? Cheers
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