Engine stalling..

[skoda5232]

My vRs is abruptly stalling once it get to temperature, no misfiring, no jolts, but the engine cuts out suddenly. It will restart in the first or second crank immediately and run for 3-4miles without problems. Mileage also have come down. Changed the fuel pump, brake switch and checked all the hoses the small fuse box on top of the battery etc, All looks fine. Can it be the CKP sensor? Have been riding like this for a couple of days and now the P0130 B1S1 O2 error have come up, which was earlier not there when I sacnned, I think maybe it's due to soot accumulation on the O2 due to poor gas mileage. Any advice guys. Its becoming dangerous to drive this car..

Edited 15 May, 2021 by skoda5232

[skoda5232]

Still chasing this issue, replaced the fuel pump and crank sensor still no change. Even gave the 409 relay a good look. All looks fine. Anything else to look for guys? No code, no lights nothing

[KenONeill]

On 15/05/2021 at 01:54, skoda5232 said:

soot accumulation on the O2

Aka the lambda sensor.

[skoda5232]

18 hours ago, KenONeill said:

Aka the lambda sensor.

This code was not there initially, I think it is a consequential damage.

[skoda5232]

Again pulled the cover of the 409 sensor and checked the contacts of the relay. All looks clean. Can the N249 circuit cause any problem?

 Again pulled the cover of the 409 sensor and checked the contacts of the relay. All looks clean. Can the N249 circuit cause any problem?

[skoda5232]

Another observation is, recently after replacing the AC Evaporator, somehow the climatronic is showing wrong temperature readings. Can it be anyway related to the above issues?

[KenONeill]

6 hours ago, skoda5232 said:

the climatronic is showing wrong temperature readings.

Outside temperature or demand temperature?

[skoda5232]

On 23/06/2021 at 13:39, KenONeill said:

Outside temperature or demand temperature?

Outside temperature,

 

strangely this problem is there only when the outside temp is showing wrong. Saturday and Sunday it was showing 5degree when it was actually 30 and the vehicle stalled atleast 5time in 15km. But today its reading correct and not stalling in my 30km drive.

 

Don't know if it is connected or purely a coincidence.🤦

[KenONeill]

4 hours ago, skoda5232 said:

Don't know if it is connected or purely a coincidence.

I'm fairly sure they're connected, because that sensor supplies inputs to the EMS as well as the Climatronic.

[skoda5232]

On 07/07/2021 at 00:33, KenONeill said:

I'm fairly sure they're connected, because that sensor supplies inputs to the EMS as well as the Climatronic.

Where is this sensor placed..

 

On 07/07/2021 at 00:33, KenONeill said:

I'm fairly sure they're connected, because that sensor supplies inputs to the EMS as well as the Climatronic.

Where is this sensor placed..

 

[KenONeill]

5 hours ago, skoda5232 said:

Where is this sensor placed..

 

Where is this sensor placed..

 

LHF wing, below the headlight and next to the horn (RHD car).

[skoda5232]

Checked the sensor, replaced the 409 relay. Still the car stalls☹️. Now it require 2 or 3 cranks to start back up..

[mac11irl]

replace the temp sensor id imagine.. it may look fine but, but could be damaged anyway. 

even try unplugging it. the ecu will assume a default value and work to that. 

[skoda5232]

On 15/08/2021 at 12:26, mac11irl said:

replace the temp sensor id imagine.. it may look fine but, but could be damaged anyway. 

even try unplugging it. the ecu will assume a default value and work to that. 

Thanks.. Sure will do that and check, this is the one mounted on the coolant flange next to the air filter box right..

 

Now it's throwing an error also when checked with VCDS