Can you please help
My car has been in and out of the garage over the last few weeks, it keeps losing poweron acceleration, I can be moving up between gear or in a gear and it loses power,once it warms up after about a mile and a half it works great, it has become quite dangerous now.
I have had the coils relaced twice as that is the only error message that came up, the mechanics are all baffled by this and cannot see to fix it . Has anyone had the same problems
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.
Currently in denn's garage: 2005 Renault Scenic Authentique16v