Citroen Sega overhauled the engine after the motor does not move

Hello, did you not respond when you hit.

First of all, it is necessary to check whether the car is leaking, all the lights, whether it is in place, if it is in place, the battery is not good, and the battery needs to be replaced.

Considering the use of a multimeter.

Detection from automatic transmission.

When the ECU transmits the P and N block signals to the wire 6791 V of PSF1, the source of return and defeat has to disassemble more car accessories, and the detection is also very inconvenient, so the intelligent control box BSI of the car is reconfigured with a diagnostic instrument, and the transmission of the car is changed to a manual transmission.

After the configuration of the automatic transmission of the car is canceled, there is no automatic transmission gear on the instrument cluster.

Display, the engine can be started. The fault was eventually locked on the wire 1 V between the automatic transmission and the PSF6791. Finally, after careful inspection, it was found that there was an open circuit in the main engine harness of the wire 6791 V, and after the broken circuit point was repaired, the transmission was restored to automatic transmission with a diagnostic instrument, and the car started normally, and the fault was completely eliminated.

The Citroen Sega sedan start-up process is as follows:

1. When the ignition switch is turned to the starting gear, the ignition switch transmits the ignition signal to the intelligent control box BSI through the wire 1065, and the starting signal is transmitted to BSI and the engine compartment control box PSF1 respectively through the wire 102 and the wire 1053.

After obtaining the ignition signal, the whole vehicle network wakes up, and the automatic transmission ECU transmits the P or N gear signal to the BSI through the CAN high-speed network, and the BSI transmits the P and N gear signals to the instrument cluster through the CAN comfort network for display.

After obtaining the start signal and the P and N block signals of the transmission, the start request signal is transmitted to the engine ECU on the one hand and the start control signal to PSF1 on the other hand through the CAN high-speed network.

4 When PSF1 obtains the start signal of ignition switch, the start control signal of BSI, the P or N block signal sent by the automatic transmission through the wire 6791 V, and the start permission signal sent by the engine ECU through the wire 1021 E, PSF1 controls the internal relay R8 to work, so the R8 relay controls the starter 1010 to work through the wire 100, and the starter drives the engine to start running.

Is there any flickering light and dark when the prepared type of imitation guessing is opened!? If there is, the battery is dead, just change it. If everything is normal is not played, then it is necessary to rent a chong to consider whether the vehicle anti-theft work, this is recommended to go to the repair shop for maintenance, because to use the diagnostic instrument, you can't solve it yourself. Hope.

Summary. Hello, if the engine failure is prompted, it is recommended that you go to the maintenance plant to read the fault code with a special driving computer, and the fault can be eliminated.

Sensor problems, oil problems, maintenance problems, and many subdivisions in it, so it is recommended to check it.

What should I do if the Citroen Sega car prompts engine failure?

Hello, if the family bends the fruit prompts the engine failure, it is recommended that you go to the maintenance plant to read the fault code with a special driving computer, and the fault can be eliminated. Sensor problems, oil problems, maintenance problems, and many subdivisions in it, so it is recommended to check it.

Is it okay to keep going.

If you can drive, it is recommended to drive directly to the repair shop, you can drive, but not too fast, drive slowly, if there is any serious silver noise, stop and wait for the trailer sail Hu oh oh.

Will this be the case when the weather is suddenly cold?

This should not be directly related to the weather Sakura, Ha,The main thing is that there are abnormal problems that will light up the ridge state light Oh,You have to read the fault code to know,It may also be a failure caused by cold weather,But cold weather is not the main reason。

Check the front and rear oxygen sensors first, this thing is broken, the initial appearance is shown in the instrument to show that the engine fault light is always on (or occasionally flashing), but the car can barely drive for a short time;

If it is not repaired for a long time, the computer (ECU) of the electronic fuel injection system will not be able to obtain the information of oxygen concentration in the exhaust pipe, so it will not be able to feedback and control the air-fuel ratio, which will increase the fuel consumption and exhaust pollution of the engine, and the engine will have unstable idling, lack of fire, surge and other fault phenomena. Therefore, it is necessary to troubleshoot or replace it in a timely manner.

Generally, today's cars have two oxygen sensors at the front and rear, respectively in the front and rear of the three-way catalytic converter, and the faulty one should be replaced in time. The failure of this product mostly occurs in the case of mixing gasoline (ethanol gasoline, etc.) with different grades and types of gasoline in different regions, or adding fuel treasure.

If that's the problem, hurry up, don't delay. In 4s, plug in the computer and measure the exhaust gas flow data feedback.

Indicates that the engine burns badly. It is necessary to start with combustion and three-way catalytic emissions, and if the three-way catalysis is not damaged, it can be passed by directly lifting the combustion.

There are 1 cleaning three-way catalysis 2Clean the oxygen sensor 3Directly improve fuel quality4To clean the oil circuit, use Add 5Find someone to check on behalf of 6High-efficiency and alkaline cleaners to clean the combustion chamber – not recommended and can damage the piston rings and oil seals.

To clean the oil circuit, the company has a general fuel additive cleaning two-way curing agent can prevent and remove carbon deposits in the oil circuit, prevent car shaking, and prevent abnormal automobile exhaust.

In this case, it means that the engine system is faulty! It is recommended to go to the auto repair shop to use the car computer tester to detect the engine system, read the fault code, you can find the problem, and then repair it according to the fault content!

Disconnect the negative pole of the battery for more than 30 minutes and reinstall it. If you still can't rule it out, you can only go to the service station and decode it with a detector.

Answer: Citroen Sega, the possible reasons for the ignition without a motor are as follows:

1) The battery is dead;

2) The battery is electrified, but the ignition switch start gear is broken or the moving relay is good;

3) For vehicles with automatic transmission signal elimination box, the gear lever is not in parking gear or the transmission neutral switch is broken.

Citroen Sega, ignition without a motor may be due to the following reasons:

1) The battery is dead;

2) The battery is electrified, but the ignition switch start gear is broken or the starting relay pants electrical appliance is good;

3) Qingshihe for automatic transmission.

In the case of a vehicle with a gearbox, the gear lever is not in parking gear or the transmission neutral switch is broken.

There are several reasons why the motor does not react

1.Battery power loss, low temperatures, and under-charging of generators can all cause power deficits.

2.If the connecting cable is loose, check whether the connection line post of the storage pool, ignition key, and motor is loose.

3.The motor carbon brush is close to grinding, and an electrician should be found for bridge maintenance.

What's wrong? What is the fault code?

Repair it, it's over the warranty period, no way.

What should I do if the Citroen Sega does not reach 100,000 kilometers and the engine is broken? There are generally several situations of engine idle jitter, gear start jitter, cold start, three-way catalytic temperature is not enough, the most common reason for serious engine carbon deposition causing car jitter is that the throttle valve is too dirty or the fuel injector is too much carbon deposit, because the gasoline adsorbed on the carbon deposit after the car is sucked into the cylinder by the engine for combustion, and the combustible mixture of the engine is dilute and thick, resulting in idle jitter after cold start. Workaround:

The company has a general cleaning oil circuit, check whether the idle motor has carbon deposits and should be cleaned.

1. If the steering wheel cannot be ignited, it is not in a state of deadlock and immobility. The solution is simple, as long as you hit the steering wheel hard and twist the key at the same time, you can generally unlock the steering wheel lock quickly, and the ignition is an instantaneous thing.

2. Did you not return the gear to P gear when you parked? Think about it, if the D or R gear can ignite the spine pants fire, the jump of the vehicle at the moment of ignition is undoubtedly a huge safety hazard. Therefore, for automatic transmission vehicles (AT, CVT, AMT), the manufacturer will preset this mode, and repeatedly inform in the manual:

Make sure the gear is in the P position when ignition.

3. One-button start sometimes encounters the trouble of power loss of the smart key, obviously the key is in the car, but the instrument always shows 'key matching error', this situation is likely to be the power loss of the smart key, and the start system can not sense the weak radio waves emitted by the key. Therefore, it is recommended that Lian Dan pick up the smart key and put it on the start button, and then press the button to start.

4. Check whether the battery has electricity. If the ignition is not ignited, it may be due to the loss of power or the expiration of the battery life due to the long-term headlights have not been turned off, and the battery is generally replaced in time according to the maintenance manual.

5. See if there is oil. If the fuel gauge shows that it is below the red line, it will not ignite. At the same time, pay attention to the quality of the oil. There have been car owners who found that there was water and mud in the fuel tank after disassembling the car, and with such oil, it is impossible for the car not to break.

6. No antifreeze is added.

Some car owners add water or inferior antifreeze to the car, resulting in a particularly cold winter, causing the entire waterway to be frozen, the engine to be frozen and cracked, resulting in the car water pump can not operate, can not catch fire, and injure other parts of the engine.

Hello suggestion, check the fuel system, and ignition system. Also check if the timing is correct.