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Renault Megane 1 - Misfire/Coil Problems

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Old 26th August 2008   #11
Lagdti
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Theres no point in disconnecting the the coils one by one to check for a misfure as they are wired in pairs,so if you disconnect one you disconnect a pair.The way to check for a misfire is to reach down at the front of the engine and disconnect each injector in turn,this will show up the cylinder that has the problem.
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Old 26th August 2008   #12
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Quote:
Originally Posted by Lagdti View Post
Theres no point in disconnecting the the coils one by one to check for a misfure as they are wired in pairs,so if you disconnect one you disconnect a pair.The way to check for a misfire is to reach down at the front of the engine and disconnect each injector in turn,this will show up the cylinder that has the problem.
Thanks. I did not know that. I will do that test tomorrow.

Thanks again
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Old 27th August 2008   #13
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Quote:
Originally Posted by david.gibson View Post
Thanks. I did not know that. I will do that test tomorrow.

Thanks again
I have tested and removing the injector plugs made the engine run worse on all plugs so I assume that the coils are ok.
On the exhaust behind the first box there is a sensor with 4 wires. Is this the Lamda sensor? Mine looks like the wires have been cut off as there are no wires going into the harness. Couls this not be part of the problem?
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