Pull the spark plug and swap it with any other cylinder that doesn’t have a code.
SUZUKI 250 BAD SPARK PLUG SYMPTOMS CODE
The last two numbers in the P03XX code correspond to the misfiring cylinder.
If it doesn’t look ok, use the chart below to determine why the plug has gone bad. If it looks ok, follow the diagnostic steps listed below.
The first is to identify the misfiring cylinder. There are two parts to diagnosing bad spark plugs in your SX4. This is because when your car’s engine turns slower, it is easier to detect. When a spark plug is misfiring, it is often most pronounced at idle speed. Since there are so many reasons that a vehicle can misfire, we recommend testing for trouble codes first.
That would include a lack of fuel pressure, bad fuel injectors, or even a timing chain (or belt) that has jumped. There are also non-ignition-related circumstances that can cause your Suzuki SX4 to misfire. There are also coil packs and spark plug wires. The real question is, what is causing the misfire? There is more to your SX4’s ignition system than just the plugs. All of the other symptoms are a result of the misfiring itself. Misfiring is the most common symptom of bad spark plugs. When you take your SX4 in for a tune-up due to decreased fuel economy, checking the spark plugs (and ignition system in general) is going to be one of the very first places a mechanic will look at. This leads to a decrease in fuel economy. The less efficient your engine’s combustion, the more fuel will be wasted. If you have one or more bad spark plugs, it’ll cause the acceleration of the SX4 to be weaker. The fewer cylinders that your engine has, the more that one cylinder not firing correctly will have. If acceleration has diminished, it should be felt. For example, P0304 is for a misfire in cylinder 4.Īs you ask your SX4 for more power, the fuel and ignition systems respond.
More often than not, your SX4’s computer can detect bad spark plugs in your car. The check engine light is one of the most common symptoms of bad spark plugs. On the right is the same type of plug when it’s new. Bad coil packs will produce the same results and feel like bad plugs. It is also worth noting that the symptoms of bad spark plugs in your car will be almost the same as any other bad part in the ignition process. If you don’t have one, your local parts store will do this for you for free. We always recommend using an OBDII scanner to pull your trouble codes if you have a check engine light on. There are a lot of potential symptoms related to foul spark plugs in your SX4. The good news is that if you do need to replace your SX4’s plugs, they are very affordable. Something that has changed about modern spark plugs is that many of them use iridium, don’t need to be gapped, and can last for 100k miles with little issue. In the Suzuki SX4, they are positioned atop the combustion chamber and ignite the air-fuel mixture, initiating the engine’s power stroke. The fundamental design and function of spark plugs have remained broadly consistent over the past century. While a misfire is the symptom of bad spark plugs, bad spark plugs almost always indicate a problem with the engine (more on that in section 2). If any element of this trio is imbalanced, your Suzuki SX4 won’t run right (or at all). Check each cap, they should be around 5K ohms each.An engine functions as a pump, requiring a precise combination of fuel, air, and spark. With the plug caps remover (they unscrew from the wires) resistance should be around 13K ohms. Remove the spark plug caps and re-test the secondary. I am so confused right nowIt's possible you have a bad spark plug cap. My reading varies by test 1st was 045.5, 2nd test was 040.2, 3rd test was 060.0 Brutalguyracing wrote:do you think this is the problem and can it cause messed up readings on the ignition coil secondary coil test (cylmer stats) 23,000-25,000
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