Car owners often notice that the car is twitching during acceleration. Such failures are mainly appearing on small and medium turnover. They are characterized as follows:
- Failure from 2 to 9 seconds;
- Jerk 1-2 seconds;
- Twitching - a series of jerks;
- Swinging - a series of failures.
The reasons for the failure during acceleration
- Gas wiring;
- Bad mass.
If the tips above did not help, the reason for such behavior of the gas pedal will only solve the diagnosis. The incorrect operation of systems, errors, composition of the fuel mixture - the diagnostics will call a specific malfunction.
Even with good operation of the motor, the car can move jerks when overclocking. Motors that meet the ecological standards of Euro-4 and above have such an unpleasant property. The point in the reaction of the electron throttle to press the pedal of gas. It is nonlinear the first 3-4 centimeters of the stroke. Because of this, a failure may manifest.
- Softer transmission switches;
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Car owners often notice that the car is twitching during acceleration. Such failures are mainly appearing on small and medium turnover. They are characterized as follows:
- Failure from 2 to 9 seconds;
- Jerk 1-2 seconds;
- Twitching - a series of jerks;
- Swinging - a series of failures.
Few who like this behavior of the car. If the machine is touched upon acceleration, you have to harm the pedal is stronger, which increases the fuel consumption. This is another question of the safety of the driver and passengers. When leaving for overtaking, a quick reaction to gas is needed, but the car "thinks for a long time", because of what you can do not have time to complete the maneuver. With such a thoughtfulness of the gas pedal ride becomes uncomfortable.
The reasons for the failure during acceleration
Determine the reason why the car twisted, you can with the help of diagnostics. Possible problems:
On HBO, the problem may arise due to:
- Failed control unit HBO;
- Interference in the harness to which fuel injectors are connected;
- Gas wiring;
- Bad mass.
How to fix the failures during acceleration
- Check the wires and ignition coils. With test, the candle wires are sparkling and glowing in the dark. The engine troit appears twigs. It happens from "age", poor-quality details or poor contact with candles. A malfunction can be associated with the engine temperature. Inter-winding resistance of coils and thermal mode of operation change together, which is why the machine on gasoline is twitching during acceleration.
If you have a diesel engine, jerks when acceleration is definitely not related to the work of the coils, they are not there. - Inspect the spark plugs. Bad contact with wires, strong nagar, too poor or rich fuel mixture is out of order. Unscrew and check each candle as in our article "Diagnostics of DVS DVS for Candles", where we led examples of faulty candles.
- Check the fuel, oil and air filters. Over time, they clog out, which leads to a deterioration in the dynamics, an increase in fuel consumption and periodic failures. You can replace them yourself, they are inexpensive and easy to install.
If the tips above did not help, the reason for such behavior of the gas pedal will only solve the diagnosis. The incorrect operation of systems, errors, composition of the fuel mixture - the diagnostics will call a specific malfunction.
Even with good operation of the motor, the car can move jerks when overclocking. Motors that meet the ecological standards of Euro-4 and above have such an unpleasant property. The point in the reaction of the electron throttle to press the pedal of gas. It is nonlinear the first 3-4 centimeters of the stroke. Because of this, a failure may manifest.
Chip tuning under the norms of Euro-2 or Euro-0 improves the reaction of the gas pedal and solves the problem. The firmware ECU has a number of advantages:
- Improved total speaker, work at idle and traction at low revs;
- The car does not tupit when the air conditioner is turned on;
- Softer transmission switches;
- The fuel consumption is reduced while maintaining manner driving.
The video from our partner, as chip tuning copes with the failures and "thoughtfulness" of the accelerator pedals on Gazelle Nekst:
Contact an ADACT partner chip tuning in your city. We guarantee a 10-day test drive, refund and flow, if the firmware does not like it.
9 ratings, average: 4.33 of 5
If you have dips on Lacetti, then this way maybe it will be possible to get rid of them. This is a real story about how to get rid of the failures on Lacetti.
I am increasingly convinced that the problem of failures when manipulating a gas pedal on Chevrolet Lacetti in most cases is due to fatigue and low quality of the engine control system.
I connected an ohmmeter to 19 and 55 contact of the block of the ECU ...
... and did not see the cherished zero resistance. The multimeter display showed values \u200b\u200bin 7 ohms.
But the most important thing is that when jerking the harness with wires, this resistance changed from 0 to dozen ohms. On the face - problems with wiring.
But where and what can lose contact so?
If you look at the scheme, the suspect will immediately come to the eyes. As in the problem of three masses, this ill-fated sadness is also present.
This is a compound of the mass of the DPDZ and the coolant temperature sensor.
It was decided to disassemble the wiring harness and search for this sadness or other possible problems. He is the fattest and goes to the computer behind the fuse block in the engine compartment
I decided to disassemble it all to study the state of the wires
There is not one such a sad
But we need to find our suspect - a thin black wire with a yellow stripe.
What was my surprise when I broke half of the harness, the resistance fell into zero and no longer rose even when I tried to move the wires.
The harness was strongly tightly pulled and over time, see, drying, that contact somewhere was disturbed.
But still it is impossible to leave - you need to finish the matter to the end. Moreover, we measure the resistance from the ECU to the DPDZ, and from the ECU to the temperature sensor, the coolant is problematic due to the uncomfortable location of this sensor. Therefore, it is better to find this sadness and solder that it was calm in the soul.
The location of this ominous compound is under the hose, going to the heater in the salon, in a very inconvenient place.
Sut off this sadly and put another exhibit in the Museum of Lacetti Kosyakov
We clean three wires
Take a piece of good wire and solder the wires together
Everything is well insulated and hide back to corrugation. I advise you not to save on the isolent, but to take more. So more convenient and reliable.
After these manipulations, this car healed a new life and the failures of Lacetti are not afraid of him. And his owner stopped drinking sedative
10.05.2017
. . Much comes letters, and the people on the forums complains that the Lacetti is twitching. It seems to me that I found one of the reasons for this jamb. And the cant of this was in the system of the throttle node. From the beginning I did not understand when I wrote that the car makes a jerk when pressed on gas at the very beginning. I thought that you mean a sharp acceleration from the DDA sensor, since when opening the throttle, a great change in the discharge is obtained. And the car makes a jerk, as if under the hood 150 horses. For the smoothness of overclocking, I just suffered a navigation fitting closer to the inlet valve:
. . And then I recently began to browse the video: and decided to repeat this experiment to understand the BC who drove the turnover. But the street is already spring, it became warm, and I could not drive the engine into such a mode. Just the damper covered up to 2 degrees, and the Wen was left in minus. But when I pressed the gas pedal, I noticed that at the very beginning I was holding something. A little stronger and she fell out, and then gas was immediately added sharply. If it were on the go - it would turn out good jerk Or you can say dörgany Just pressing the pedal. I tried to press a hand from under the hood. Inside there are plastic gears RXX, as in the alarm clock. And on the sound there was a feeling that the teeth reroxed each other. I realized that I simply overcame the effort of the RXX motor, rendered to the damper for its cover up to 2 degrees. Did you not write about my blog readers? - I thought and began to deal with this problem.
But my reader from Tver Alexei Berezkin seems like this gap was more, judging by his explanations about the behavior of the car. Sedan 2008 1.6 MCPP, and he suffered with these jerks. With an electrician, he is on "you", so I could not receive more information. Then I advised him for sample to pull the DZ 6 from the DN chip with the wire, thereby not to give the ECU to turn on the RCH and ride. He remained very satisfied with the result - all the jerks disappeared. Only without a confusion, the turns are walking on the XX (I already looked at my own), and the car does not start without pressing the gas, the Dz shows 1 degree, then it is seen by the air flow to 2. And then the ECU does not allow the engine, and since RXH It does not work, trying to increase the revolutions with the help of the uzov, bringing it to 12 - 17 to 12 degrees. Just at this time and start swimming. In general, in order for Alexey to not buy an expensive throttle knot, and considering that he is not an electrician, offered him a mechanical version of solving this problem - to adapt to the micro switch. Connecting 6 contacts to it with the wire from the DZ chip, and the other contact of the micrushki is on the ground, and it will work instead of the confusion. So he did - Döganya disappeared. He says that the car even became more. But this is probably from a good mood that all jerks disappeared, and driving has become comfortable. He promised to send a video, as adapted to this microbe.
. . Today we have on May 9, 72-anniversary - all with the holiday! We had snow and got cold. Slightly warming up, rent a video to this article so that it is clear. For one, I will insert the video of Alexey - who can come in handy. Maybe someone will come up with a better fastening option. The main thing from us - idea. And I will soon disassemble this node and watch, it can somehow be able to adjust this confusion. On the Internet the photo is badly visible. Better with your own eyes and on your throttle. Next video on this topic
Many cars have typical faults that are found only at the operation stage. It became usual that car manufacturers feed the huge parties of car models.
In Russia, feedback cars is not so common. But if you buy a car from an official dealer, then, in case of identifying a critical malfunction, the dealer will be obliged to eliminate the defect at the expense of the company. Russian manufacturers, by the way, also retain the client loyalty in this way. The largest Russian automaker AvtoVAZ on May 27, 2013 decided to receive more than 30,000 Lada Kalina and Lada Granta cars related to braking systems in the party, with the ABS system and the Cable Transmission (MCPP) issued inclusive until April 7, 2013.
By the way, in 2019, cars recall Audi.
Let's return to the topic of frequently arising Chevrolet Lacetti.
It became annoying that the Chevrolet engine stalls when throwing turnover when braking the engine, when braking. At the same time, unstable irrigates of idling are noticed. Problems with the Chevrolet Lacetti engine, first spontaneous, and then occur regularly. What is the cause of the Chevrolet Lacetti engine malfunction? Why does the motor and problems with Chevrolet turns? How to repair?
The problem is known and already solved. If you do not have experience, there is no car service nearby, in the field conditions, hands are not from there, this guide will help to fix your chevrolet.
Fault:
- The engine stalls when slowing
- Unstable idling speed
Cause of engine malfunction:
- The absolute pressure sensor in the intake manifold (DDA, MAP).
- Damage to the vacuum hose.
Solutions:
General Motors 96276354 - absolute air pressure sensor (MAP)
Look analogs of the sensor 96276354 will not be difficult, such as ERA. On the manufacturer's website you can also see the applicability of the sensor to your car.
How does this sensor work? It measures the difference between atmospheric pressure and pressure in the intake manifold. That is why the tightness of the hose of the vacuum tube is important.
Where is the absolute pressure sensor in Lacetti? It is not necessary to search for a long time - he is visible immediately on the intake manifold.
