yes, there's a huge sticker on your engine that says "use twin ground plugs retard"
How do I change spark plugs in 2009 Toyota Corolla? whaT TOOLS I NEED
Lifted from a post on ToyotaNation.Does yours use the OEM twin ground platinum electrode spark plugs? They are specifically used for the later model Gen 4s (Camry) with twin coil packs and distributorless. These use a waste spark ignition, therefore the plugs fire twice during a 4 stroke cycle. If you use a single ground electrode, it will severely shorten the life of the plug. e.g. 6,000rpm on your Camry engine will be like running 12,000rpm on another car, since the plug fires twice as often. You can also try double platinum plugs, i.e. plugs with a platinum chip also on the ground electrode. What happens in waste spark ignition is that 1 coil pack fires 2 spark plugs simultaneously, e.g. cylinder 1 and cylinder 4. So while one spark plug is firing normally, spark jumps from center electrode to ground electrode, the other spark plug is firing in reverse, i.e. from ground electrode to center electrode, therefore there is high wear on the ground electrode, this is where the platinum chip on the ground electrode gives longevity. Plugs like Denso Iridium SK20R11 and VK20 also have a platinum chip on the ground electrode. NGK Iridium IX and Denso IK20 don't. BOSCH R3 Platinum2 18-3770-8 spark plug is an alternative choice. Had replaced with these spark plugs for 2 years now, so far so good. By the way, the original stock Denso plugs were still very good after 100,000 miles (160,000kms). IMHO that they could go at least 200,000 miles before needing replacement.
position of spark plugs on 2003 Toyota coralla
remove the coil packs then the spark plugs dont just drop the plugs when installing this will damage the electrode
Plugs with a single ground electrode 0.8mm For those who use a standard Spark Plug gap measurment tool. .032 of an Inch .
Corollas has a four cylinder engine, it means it has 4 spark plugs.
There is an article with video on how to change spark plugs at ; http://www.carbasics.co.uk Look in their 'how to' section.
Due to the spark a plug gap will increase by approx 0.001" every 1000 miles there is no problem re gapping spark plugs normally the exception being multi ground electrode plugs which are non adjustable,
The recommended gap setting is .032 in. Open or close the ground electrode to aquire this clearance, as measured with a feeler gage.
The 2003 BMW 325i uses a coil-over-plug system, so the spark plugs are connected directly to the coils, deep in the cylinder head. To get to the spark plugs: # Remove sound reduction or ignition coil covers as needed # Open control box cover # Disconnect ignition coil electrical connector by lifting up plug lock # Remove ignition coil by pulling straight up # Use the necessary tools to remove the spark plugs There are six plugs, and the factory plugs that come with the car are most likely the NGK BKR6EQUP (laser platinum, 4-ground electrode) ... or if it's not the platinum version, the BKR6EKUB (a dual-ground electrode, semi-surface discharge type).
Connect a known good spark plug to a spark plug wire and ground the threads to the engine while cranking. If there's spark to the electrode you know the coil is good and it's sending current through the wire.
The correct spark plug gap for a 2000 Toyota Corolla is .043 inches. Most spark plugs are pre-gapped, but its best to check before installation.