How do faulty spark plugs affect fuel consumption?
Unstable operation of the spark plugs immediately affects the ignition of the mixture in the cylinders, and not completely burned fuel simply flies out into the exhaust system, thereby disabling the catalytic converter. In this case, the first thing we will see is increased fuel consumption. The exhaust system oxygen sensor reads and transmits information to a computer, which analyzes the data and compares it with information from the mass air flow sensor.
What is an internal combustion engine? And how versatile is it? It turns out that starting the engine is complicated by the “cold” temperature regime, which makes it difficult to form high-quality and consistent mixtures, as well as reliable and rapid ignition, the necessary and absolute combustion of the air-fuel mixture. Understanding the principles of engine operation, it is very easy to understand how spark plugs affect gasoline consumption, and whether it is possible to influence this, trying to reduce spending on the family budget.
Wheel sizes that do not match the transmission, brake pads jamming
The Hyundai Solaris transmission is designed taking into account operating conditions for wheels of a strictly defined diameter and width. The use of wheels of sizes not recommended by the manufacturer will complicate the operation of the transmission, increase road resistance and fuel consumption by 5-15%.
When the brake cylinders jam, friction occurs on the brake pads, which leads to constant braking of the car. To identify this malfunction, simply touch the outer part of the wheel rim; if it gets hot after driving, then the cause of the increased fuel consumption has been found.
Uninterrupted engine operation and low fuel consumption are some of the main requirements that owners place on their cars. Sometimes a dispute arises as to whether spark plugs affect fuel consumption or whether gasoline consumption is completely independent of their quality and condition. For an accurate answer, several factors should be taken into account.
Pipes - filters
According to technical documents, it is known that for normal operation of the engine and combustion of the working mixture in the cylinders, an electrical discharge voltage of at least 10 kV is required. In addition, when choosing a new spark plug, you need to take into account the climatic conditions of the region in which the machine is operated; in cold areas, a low heat rating is preferable, due to additional cooling from the outside; in hot regions, a high heat rating is preferable, since the engine heats up more.
Features of spark plugs – Spark plugs
| White, red, black carbon deposits on spark plugs: the reasons for their appearance, which means a lower heat rating is suitable for winter operation, when the engine has additional powerful cooling, as well as when starting in frosty conditions. You lose if you wait until the spark plugs refuse to do their job; overpayments for gasoline can exceed the cost of several sets of new spark plugs. |
- follow the specifications recommended by the manufacturer of the vehicle;
- competently use changing characteristics in different climatic conditions.
How much will you have to overpay for gasoline if the spark plugs are faulty • For this reason, it is recommended to carry out 10 thousand in parallel with each scheduled maintenance.
Signs by which you can determine the oil content of a car engine
When buying a used car, the buyer often asks the seller the following question: “Does the engine burn oil?”
Some of the sellers answer honestly, and some, if this problem is present, hide the answer in order to quickly get rid of the car. Well, it’s understandable who would buy a car that will require repairs in the near future.
Maslozhor
in auto mechanic slang, this is increased consumption of motor oil in an internal combustion engine.
There are five visual cues,
by which you can determine whether a car’s engine consumes more oil than normal or whether this is inherent in its design features.
Let's tell you about each sign of "oil glutton"
using the example of “Zhigulevsky”
a motor whose oil consumption is approximately
one liter
per
500 kilometers
.
Definition by exhaust.
It doesn’t matter whether the car’s exhaust system has a built-in catalyst or not, the oil that gets into the combustion chamber during engine operation does not burn completely and, together with the exhaust gases, enters the exhaust system. On cars where the engine “eats”
oil, the exhaust pipe of the muffler is covered with a black oily coating.
Determination by oil.
Black engine oil on dipstick
may indicate not only that it contains good detergent additives, but also that the engine is “consuming” oil. Now I’m talking about the extremely black color of the oil, which has the smell of exhaust gases,
in this case, we can say with confidence that the engine consumes more oil than normal.
Vacuum hose – Concern Level: 7
This is because the compression was normal and the color of the thread was different in no way because of this; then, the injectors are in order, otherwise the picture on clean, unmarked spark plugs should have been consistent. The insidiousness of the situation is that worn spark plugs may not arouse suspicion for a very long time either on the part of the self-diagnosis systems or on the part of the owner. The computer considers the number of interruptions acceptable, by ear the engine runs smoothly, and consumption is creeping up.
What is meant?
Thus, in the design features of the product, you can find some features to understand how spark plugs affect gasoline consumption, and whether this can be corrected. Red brick soot on the spark plug skirt occurs when the engine is running on fuel containing an excess amount of metal particles, often manganese, which increases the octane number of gasoline.
Automatic transmission malfunction
Modern automatic transmissions begin to operate in single-speed mode when the torque converter lockup malfunctions. Pressing the accelerator pedal will cause the engine speed to increase, but upshifting will not occur and fuel consumption will increase significantly.
Injection systems Filtration system
| And again about spark plugs Archive. A leak in the cylinder head gasket can lead to many malfunctions and breakdowns, including a situation where the engine eats up oil. Because of our high-quality fuel, the spark plugs die quickly; on average, I advise you to drive 20–30,000 kilometers with one set; if you have iridium spark plugs, then the mileage increases slightly to 30–45,000 kilometers. |
- Incorrectly selected or simply low-quality (fake) oil . It is necessary to fill the engine with oil with the viscosity and tolerances recommended by the car manufacturer. And try not to buy oils from dubious brands and untrustworthy retail outlets.
- Harsh engine operation . In particular, frequent operation at high speeds. At the same time, its temperature rises significantly, and more oil is needed for lubrication and cooling. Remember that more oil is consumed in the cold season. This is due to the peculiarities of crankcase ventilation. Therefore, to reduce waste, try to warm up the car at idle in winter!
Trivial causes of fuel consumption • In the case of a faulty injector, a similar effect also occurs, which is associated with the working mixture being too rich.
Driver's driving style, viscosity of transmission and engine oils, use of air conditioning
When upshifting late or using air conditioning, fuel consumption increases significantly, especially on low-power engines.
From an engine operating without load (idling), partial engine power is taken off by the automobile air conditioning compressor, which increases fuel consumption by 5–15%. When driving in the city cycle, you often have to reduce speed and idle, so the increased fuel consumption of the car is especially noticeable. On the contrary, timely engagement of higher gears and rolling of the car help reduce the engine's appetite.
The use of oils with a higher viscosity than recommended by the manufacturer causes additional fuel consumption to overcome the increased resistance of the transmission and engine.
Selecting spark plugs based on material for making electrodes
To understand the effect of a spark plug on excessive fuel consumption, you should look a little more closely at its design. It consists of an insulator with ribs, a contact terminal, electrodes and an O-ring. Everyone has heard that there is such a thing as spark plug gap. In practice, this is precisely the distance that exists between the side and central electrodes. It is between the two of them that the spark occurs, which is required to ignite the working mixture. Now let’s try to identify the symptoms indicating a malfunction in the spark plugs:
What is carbon deposits on candles and what types does it come in?
Experienced drivers recommend analyzing the type and color of carbon deposits on spark plugs, because this allows you to understand the true cause of a malfunction in the engine or vehicle systems. Gray soot is considered normal and indicates the stability of the machine, while red, white or black give reason to think about it.
The appearance of a milky (white) coating on the spark plugs indicates the following:
- consumption of low quality gasoline - if the soot is small and has a matte tint;
- overheating of engine elements - if the carbon deposits are shiny or glossy and the deposits are large.
Reasons for the formation of oil deposits:
- incorrect temperature conditions in the cylinder-piston group of the engine;
- dirty air filter;
- candles with a high heat rating;
- wear of piston rings, valve stem seals or valve liners;
- oil in the chamber.
Terrain © Spark plugs
| Do spark plugs affect consumption? I had a problem with one cylinder in my Camry, then problems were found in the electronics, so when you disconnect the wire, you can clearly feel how the engine is braking; and when you sit in the car and the cylinder does not work, nothing is noticeable at all. Let's start with the fact that many drivers are faced with a dilemma: whether to change the spark plugs only after actual wear, or to do it after a certain mileage, as recommended by manufacturers, even if the spark plugs are normal in appearance. |
- fuel detonation;
- excessive pressure;
- influence of thermal and chemical processes.
Car class and engine size • How to explain this fuel consumption.
Tools needed to get to the node
No special devices were required for diagnostics and replacement of spark plugs. We managed on our own: “heads” and keys of different sizes were available. To view the pistons, an inexpensive Chinese-made endoscope was useful, which works by connecting to a smartphone. It is an “eye” – a camera on a wire connected to the phone. On the screen you can see everything that the “eye” sees.
Gasoline consumption increased after replacing spark plugs
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WrSolio
Happens here
2 October 2007 66 2 0 Novosibirsk
I replaced the spark plugs; the central contact of the old ones was badly burnt out. I installed the NGK DCPR7E as indicated on the engine compartment plate. As a result, starting in the cold is a little worse and fuel consumption has increased from 7.2-8.8 to 12 liters. Defective candles or my crookedness? Maybe the gap needed to be adjusted before installation, or something else?
alterman
Local
16 March 2008 276 32 0 Rostov-on-Don I go to. SUZUKI WAGON R SOLIO MA34S M13A 2WD 2004 RIGHT-HAND RIDE
Answer: Gasoline consumption increased after replacing spark plugs
you need to first check whether the spark plugs are real - on the Enjikey website it is written how to do this - then check the gap
Edw_WaR
Pro
April 9, 2006 2,888 126 63 PodMoscow I go to. Solio SWT 2002 MA64S right hand drive, Japanese, K10A 70hp vvti mileage 105300 automatic transmission, air conditioning
Answer: Gasoline consumption increased after replacing spark plugs
I replaced the spark plugs; the central contact of the old ones was badly burnt out. I installed the NGK DCPR7E as indicated on the engine compartment plate. As a result, starting in the cold is a little worse and fuel consumption has increased from 7.2-8.8 to 12 liters. Defective candles or my crookedness? Maybe the gap needed to be adjusted before installation, or something else?
When did you change the spark plugs? Until frost? Unscrew the new ones and look at the carbon deposits.
Vagulo
Add yours to the board
20 August 2007 723 74 0 Novosibirsk
Answer: Gasoline consumption increased after replacing spark plugs
Unscrew the new ones and look at the carbon deposits.
I support: turn out the spark plugs and take a look. If gasoline consumption immediately after replacing the spark plugs increased by 50%, some cylinder is probably simply not working. Maybe the coil is covered, maybe there is no contact somewhere. Maybe they simply forgot to put the connector on the coil. Maybe the spark plugs are fake: the Chinese love to make fake NGKs. Three work, one doesn’t, that’s the result.
Or, as an option: maybe all four work intermittently. But it’s less likely: then the engine would be shaking, it’s hard not to notice. And if one cylinder does not work, Japanese engines are so well balanced that you almost don’t feel it. So turn out the spark plugs: everything will be visible from the soot.
WrSolio
Happens here
2 October 2007 66 2 0 Novosibirsk
Answer: Gasoline consumption increased after replacing spark plugs
When did you change the spark plugs? Until frost? Unscrew the new ones and look at the carbon deposits. I changed it about a month ago. I'll check the carbon deposits tomorrow.
Morris_max
Local
7 December 2008 283 14 0 40 Novosibirsk
Answer: Gasoline consumption increased after replacing spark plugs
here someone copy the information on how to distinguish real from fake))
WrSolio
Happens here
2 October 2007 66 2 0 Novosibirsk
Answer: Gasoline consumption increased after replacing spark plugs
I will report the results of the inspection. All cylinders work. Installed old spark plugs. Along the way, oil was discovered in the well of one of the spark plugs; it looked like the cylinder head cover gasket was leaking. It is possible that the presence of oil on the spark plug caused the spark plug to periodically fail to fire.
Edw_WaR
Pro
April 9, 2006 2,888 126 63 PodMoscow I go to. Solio SWT 2002 MA64S right hand drive, Japanese, K10A 70hp vvti mileage 105300 automatic transmission, air conditioning
INBHKBW… Ignition system
; blockSettingArray 1 setting_type 6; blockSettingArray 1 elementPlace 30; blockSettingArray 2 ; blockSettingArray 2 minSymbols 0; blockSettingArray 2 minHeaders 0; blockSettingArray 2 text. If there is no service book or operating instructions for the car, and you have to determine the type of spark plug based on an old one that has expired, you should, for greater confidence, contact the dealership of the corresponding brand of car, specialized literature or official information on the Internet.
Trivial reasons for fuel consumption Ignition system
| Fuel consumption has increased: what to do to correct the situation In general, the operation of the spark plugs can be adjusted for different regions, and also when used in frosty winters and hot summers, it is advisable to use spark plugs of different heat ratings. Due to our high-quality fuel, the spark plugs die quickly; on average, I advise you to drive 20–30,000 kilometers with one set; if you have iridium spark plugs, then the mileage increases slightly to 30–45,000 kilometers. |
| Do spark plugs affect engine oil consumption? This color of working spark plugs indicates the efficiency of the engine, the completeness of combustion of the mixture in the cylinders, and the lack of oil consumption due to wear on the timing belt or CPG. The first category includes the following possible malfunctions: wear of the piston oil rings, clogged breather, wear of the oil seals, leakage through the gasket or seals, and some others. |
Injector and its cleanliness
Injector cleanliness is another factor that can affect fuel consumption. It needs to be cleaned every 10 thousand kilometers. In this case, use ultrasonic cleaning, it is 4 times more expensive, but much more effective than standard washing.
Many real drivers claim that ultrasound is harmful to the car, but qualified technicians unanimously say that this is a lie.
Since regular cleaning is done almost blindly - a simple external washing of the injector. But its analysis and careful exposure of each part to ultrasound is very effective, although the car may be “capricious” for the first three days, and this depends on what liquid the injector was washed with, oddly enough, but domestic products are better in this case.
