Engine knock on defender PUMA 2.4

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AleksTkach

New Member
Posts
1
Location
Ukraine
Good afternoon!

Cry for help!

The problem with Defeneder has been going on for 5 years, please help!

The car traveled 48,000 km without breakdowns. They started pouring nozzles, after replacing them (they were registered), engine detonation began. After they replaced the injection pump, turbine, USR, air flow sensor, fuel rail, boost sensor, the circuit was replaced, the engine compression was measured (26 in all cylinders), the fuel tank was dismantled and washed. But all to no avail.
The injectors fail after 10,000 km. Last week, the CHECK ENGINE caught fire and the car went into emergency mode. Then, without intervention, the CHECK light went out and the car came out of emergency mode. Today I took it to the service. Diagnostics revealed an error P121C-00 and during diagnostics, the fuel pressure rose from 240 to 960 bar for 30 seconds, then dropped again to 240 bar.
 
Last edited:
Good afternoon!

Cry for help!

The problem with Defeneder has been going on for 5 years, please help!

The car traveled 48,000 km without breakdowns. They started pouring nozzles, after replacing them (they were registered), engine detonation began. After they replaced the injection pump, turbine, USR, air flow sensor, fuel rail, boost sensor, the circuit was replaced, the engine compression was measured (26 in all cylinders), the fuel tank was dismantled and washed. But all to no avail.
The injectors fail after 10,000 km. Last week, the CHECK ENGINE caught fire and the car went into emergency mode. Then, without intervention, the CHECK light went out and the car came out of emergency mode. Today I took it to the service. Diagnostics revealed an error P121C-00 and during diagnostics, the fuel pressure rose from 240 to 960 bar for 30 seconds, then dropped again to 240 bar.
did you ever get to the bottom of the problem and were there any other fault codes
 
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