Which spark plugs are best for Toyota Corolla 150 body

Cars admin26.02.2020

The stability of ignition of the air-fuel mixture and the reliability of the power unit directly depend on the condition of the spark plugs and ignition coils. Failure of any of the elements leads to engine tripping.

This causes a reduction in engine life, increases fuel consumption and leads to a loss of vehicle dynamics. Therefore, you should carry out timely maintenance of the ignition system and purchase only original or recommended consumables.

Article and price of branded candles for Corolla 150 and their analogues

Original Toyota Corolla 150 spark plugs have article number 9091901253. Their price is 350-600 rubles. Toyota does not manufacture its own spark plugs. Therefore, in the original packaging you can find Denso SC20HR11. In free retail sale, these consumables cost about 500 rubles.

In addition to original candles, there are good analogues from third-party manufacturers. The best of them are shown in the table below.

Table - Good analogs of original spark plugs for Corolla 150

Recommendations for replacement intervals

The automaker officially recommends replacing spark plugs every 50 thousand km. According to the operating experience of the Toyota Corolla 150, car owners recommend extending the interval to 70-90 thousand km. Original and famous brand candles can be maintained without difficulty and for a longer period.

If damage occurs, as shown in the image below, or due to missing sparks between the electrodes, unscheduled replacement of the spark plugs may be required. If it is too often necessary to install a new set of consumables, it is necessary to diagnose the power plant and related systems to identify faults that disable the ignition system.

Top 5. BRISK PREMIUM P11 MR 14YIR

For Toyota Corollas with a gasoline engine, spark plugs with iridium electrodes BRISK PREMIUM P11 MR 14YIR are the most affordable solution. They will cost half as much as the popular Bosch ones.

The more than affordable price still could not make the BRISK PREMIUM P11 the most popular choice among Toyota Corolla owners. However, the owners who used them for replacement were satisfied with their decision. A good heat rating, the presence of a resistor to suppress interference in the on-board network and the presence of iridium in the central electrode provide excellent performance characteristics. To ensure a high-quality spark, the grounding electrode was made of yttrium alloy - the machine starts very easily in cold weather. True, not everyone’s spark plugs last 100 thousand km. Owners often change them after 60,000 km - the quality of the fuel and traffic in city traffic jams affect them.

Advantages and disadvantages

• Profitable price
• An excellent solution for reliable ignition
• Often subject to replacement earlier than stated

• Not always on sale

Tools required to replace spark plugs

In order to replace spark plugs on a Toyota Corolla 150, you need the tools from the table below.

Table - Tools for replacing spark plugs on Corolla 150

Description of replacing spark plugs on a Toyota Corolla 150

In order to replace spark plugs on a Corolla 150, you need to follow the instructions below.

• Open the hood.
• Reset the negative battery terminal that goes to the body.
• Remove the decorative engine cover.
• Unscrew the ignition coil mountings.

• Disconnect the terminal block.

• With a little effort, pull the coil up and remove it.

• Blow out debris from spark plug wells.
• Unscrew the spark plug.

• If the key allows you to hook and remove the candle from the well, then you need to pull it out. If difficulties arise in obtaining consumables, it is recommended to use a magnet and a metal rod or knitting needle.

• Screw in a new spark plug.
• Reassemble everything in reverse order.

Main types

Internal combustion engines use several types of spark plugs, differing in the material of the electrodes:

• standard, equipped with 1 side electrode and a central part made of copper alloy;
• improved 1-electrode with nickel core;
• multi-electrode, characterized by the use of 2 or 4 side contacts;
• with a central electrode made of iridium or platinum alloy;
• pre-chamber type products without separate lateral contact.

Article number and cost of the original ignition coil for Corolla 150 and its analogues

The branded ignition coil has catalog number 9091902266. The cost of a new product ranges from 3,000 to 5,000 rubles. There is also the opportunity to purchase the product from auto dismantling yards. Since the residual life of a used coil is unknown, experienced owners recommend purchasing analogues from third-party manufacturers. A list of the best options is given in the table below.

Table - Ignition coils for Corolla 150 from third-party manufacturers

Recommendations

Comments 27

Yes, there are a lot of fakes... That's why I opened an individual entrepreneur and sell spare parts, oils, lamps and tires)))) I maintain direct contact with the Denso representative in our Southern Federal District. Now, if I run into a fake, then what can we say about those who buy spare parts through websites (existence, emex, autodoc...))))

hi, but the markings on the candles are different,

Yes, she has changed. If you go to the Denso website, enter the car data, you will be given new part numbers. Choose iridium ones.

it’s clear, they gave me a Denso in the store, they checked the VIN, although from Merced, Mitsubishi and Nissan, they work fine, but not mine), I read your entry, went into the existential, so the price of a candle is 1000, before the replacement they were Bosch, now they are 440 R., I found it on an existential shop with the markings you took off, for 2000 rubles. package

Yes, she has changed. If you go to the Denso website, enter the car data, you will be given new part numbers. Choose iridium ones.

I’m also interested in the difference in prices, the ones you had cost 1052 and the ones you priced 654, I wonder why

Frequency of replacing spark plugs on Corolla 150

The manufacturer has set a period for regular updating of Toyota Corolla spark plugs - every 100 thousand kilometers.

Symptoms that indicate the need for another replacement:

• increased fuel consumption;
• problems starting the engine;
• the appearance of shaking at idle;
• problems with acceleration of Toyota Corolla.

The inclusion of a special "Check Engine" indicator also indicates problems with the Corolla elements in question.

Factors affecting wear and the need to update ignition elements in a Toyota Corolla:

• The use of low-quality fuel, which is an enemy to the components and assemblies of the vehicle. Normal operation can be ensured by AI-95 gasoline and higher.
• Excessive aggressive driving also negatively affects the wear and tear of automotive components. Active driving negatively affects the units, including the engine starting system. At higher speeds, the ignition elements generate a spark many times more often and are more subject to wear.
• The use of cheap analogues rather than original parts, according to the rule “the stingy pays twice,” leads to frequent replacement, nullifying the car owner’s attempts to save money.

Symptoms and signs of malfunction

The main signs indicating excessive wear or failure of spark plugs:

• floating idle speed and dips during acceleration;
• increased fuel consumption;
• the appearance of vibration of the power unit in idle mode, accompanied by flashing or short-term turning on of the orange Check Engine indicator;
• decreased acceleration dynamics;
• When testing the control unit, errors are detected indicating misfires in a single cylinder or in a chaotic sequence.

It should be taken into account that the listed symptoms can be observed when the coils are not operating correctly. For example, when the case cracks, moisture enters through the cracks into the internal cavities, disrupting the spark formation process.

As the engine warms up, the water evaporates and the defect disappears, but information about the error is stored in the memory of the engine control unit.

Do-it-yourself replacement of spark plugs on a Toyota Corolla

Replacing spark plugs for a 2008 Toyota Corolla , as well as other years of production, is quite simple and accessible. A car enthusiast can carry out this procedure on his own. Manipulations with the ignition elements of the engine do not require preparation, expensive tools and equipment; installation of spare parts is extremely simple and does not take much time. For reliable operation of the motor, original parts or proven analogues are used.

Original spare parts

The market offers not only original Toyota Corolla spark plugs , but also budget counterfeits that are of poorer quality. It is easy to distinguish an original spare part from a low-quality analogue: the original white insulator is not covered with bubbles, the inscription on it cannot be erased with a fingernail. In addition, there are no chips, burrs or defects on the original spare parts. Also, the ring should not unscrew, and the circular engraving should be applied evenly. Non-compliance with the mentioned rules indicates that this is not an original, but a low-quality fake.

To determine the originality of a spare part, use a multimeter. The sensitivity adjusted for these purposes is 20 kOhm. The detectable resistance in counterfeit ignition parts will be zero, while the original parts will show 5 kOhm.

Popular analogues

There are popular affordable analogues of spark plugs for the 2008 Toyota Corolla , such as Denso K16R-U11, which is an analogue of Bosch 8 in terms of the glow rating of the spark plug, NGK BKR5EYA. They are widespread and are not inferior in quality to the original ones. Analogs, unlike budget counterfeits, provide comfortable and reliable engine starting, and their service life is close to the service life of the original parts.

Replacement procedure

First you need to remove the plastic motor cover, for which you use a 10mm wrench. Under the cover there are 4 chips installed on the coils that need to be removed. The coils themselves are secured with bolts, to remove which you will need a spark plug wrench for the Corolla 150 body 14.

Using the mentioned spark plug wrench, it is necessary to unscrew the spark plugs counterclockwise from the holes in which the removed coils were located. In order to carefully remove the spare part, it is recommended to first magnetize the key or use long tweezers. Having dismantled the old parts, you need to install new ones in their place and reassemble in the reverse order.

What to look for when choosing spare parts

When selecting candles, the main parameters of the products are taken into account:

1. The length of the threaded part and the wrench size (for example, for the 1ZR-FE engine the parameters are 26.5 and 14 mm, respectively). It is strictly forbidden to use parts with an extended or shortened bushing. Additionally, it should be remembered that for 1ZR-FE engines, products with a thread diameter of 12 mm are suitable.
2. Heat number, which is calculated by each manufacturer according to its own scale. For example, Denso products with iridium electrodes have a coefficient of 16 or 20, and analogues from NGK are marked 5 or 6, respectively. When using spark plugs with an inappropriate heat rating, the performance of the ignition system is disrupted and engine starting becomes difficult.
3. The resistance of the spark plug, which determines the level of radio frequency interference. The design of parts for the Corolla E150 provides an additional resistor with a nominal value of 5 kOhm; when using increased or decreased resistance, interruptions in the operation of the ignition system are observed.
4. The gap between the electrodes, which is 1.0 mm for standard spark plugs and 1.1 mm for iridium spark plugs. If the spark gap is broken, the load on the coils increases and problems arise with ignition of the mixture both at the moment of starting the engine and during a sharp increase in speed.

An additional criterion for selection is the quality of product packaging and the appearance of the parts. For example, original Denso products have a central iridium electrode of a bluish color; on counterfeits, the surface is painted in a yellowish tint, corresponding to copper-based alloys. You should pay attention to the sealing ring, which is made of a material similar to that used for the threaded section (metal washers with other characteristics are often found on counterfeits).

Corolla ignition element clearance

Despite the fact that most car owners have heard about the ignition element gap, few have any idea how to take this parameter into account in practice. It is difficult to underestimate it, since it is important not only for the correct selection of spare parts, but also for the direct installation process.

The gap is the distance between the spark plug electrodes, the correct setting of which determines the engine ignition process and Toyota fuel consumption. To set the gap of the ignition elements, you will need adjusting probes and a special key; adjustment is made on the removed spare part.

For a 2008 Toyota Corolla, the correctly set engine spark plug gap is 0.8 - 0.9 mm.

Step-by-step instructions for changing spark plugs yourself

Algorithm for independently replacing spark plugs on 4ZZ-FE and 1ZR-FE engines:

Unpack the spare parts, remove the plastic protective caps from the threaded bushing, and then visually check the serviceability of the parts (cracks and chips on the insulator or mechanical damage on the contacts or threaded parts are not allowed).

• If you plan to service the car after a trip, you need to wait 15-30 minutes to reduce the engine temperature.
• Open the hood of the car, and then remove the 4 10mm bolts holding the plastic protective cover to the head.
• Remove the cover from the engine compartment, and then unscrew the screws (the wrench size is 10 mm) securing the individual coils.
• Unfasten the electrical wiring plugs from the coil connectors, carefully bending the plastic fastener.
• Remove the coils and wipe the surface from dust and traces of engine oil (lubricant penetrates into the wells through the gasket between the aluminum timing cover and the cylinder head).
• Inspect the surface of the coil insulator for cracks or signs of breakdown.
• Unscrew the old spark plugs with a socket or a special 14 mm wrench (tube length is at least 250 mm) and remove the products from the wells using a gripper or magnet. The diameter of the hole in the valve cover is 21 mm, which should be taken into account when choosing a tool.
• Install new parts, tightening each element tightly with a wrench (tightening torque 20 N*m). If the owner of the car does not have a torque wrench, then it is necessary to tighten the threaded part by hand until the gasket comes into close contact with the plane of the block head, and then perform a final tightening of 0.5 turns.
• Place coils on the tips of the spark plugs, connect the wiring plugs and secure the parts with bolts.
• Reinstall the protective casing and test run the power unit. No additional component adjustments required

Gap

The gap refers to the distance between the electrodes. Correction is carried out by bending or moving towards the lateral contact. The manufacturer supplies spare parts in an adjusted form (the parameter and tolerance range are indicated on the packaging). The car owner can independently check the gap using a feeler gauge (recommended value 1.0-1.1 mm, depending on the engine type).