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Discussion Starter · #1 ·
Hello everyone,

Quite a long time ago (+/- 6 months) I am getting the engine light turn on. I thought to be EGR at the beginning so I went to the highway to push it. It cleared for a while.

However, since last time I can't make it disappear and the car now, sometimes, mainly in cold, low revs, it hiccups a bit (sudden power loss then quick recover and so on). But never happens in high revs or when the car is hot.

Here goes following codes:

What could it be? EGR valve? Differential pressure sensor? Temperature sensor? DPF?
I've tried to regen as many times as possible.

Thank you :)


Car Scanner ELM OBD2
DTC report

============1==============
P046C
Raw code: 046C
ECU: Engine control unit
Status: Confirmed
OBDII: Exhaust gas recirculation (EGR) valve position sensor A - range/performance problem

============2==============
257E00
Raw code: 257E00
ECU: Engine control unit
Status: Pending, Confirmed, Test failed since last DTC clear, Warning indicator requested

============3==============
290B00
Raw code: 290B00
ECU: Engine control unit[Archive (inactive)]
Status: Confirmed, Test failed since last DTC clear, Test not completed during this operation cycle

============4==============
255B00
Raw code: 255B00
ECU: Engine control unit[Archive (inactive)]
Status: Confirmed, Test failed since last DTC clear, Test not completed during this operation cycle

============5==============
930928
Raw code: 930928
ECU: SRS/Airbag
Status: Confirmed, Test failed since last DTC clear, Warning indicator requested

============6==============
CD0487
Raw code: CD0487
ECU: CAN gateway
Status: Pending, Confirmed

============7==============
801C15
Raw code: 801C15
ECU: CAN gateway
Status: Pending, Confirmed, Test not completed during this operation cycle

============8==============
801C20
Raw code: 801C20
ECU: CAN gateway
Status: Test failed, Test failed (current drive cycle), Pending, Confirmed

============9==============
480134
Raw code: 480134
ECU: Suspension/Dynamic management
Status: Pending, Confirmed, Test failed since last DTC clear

============10==============
8041A8
Raw code: 8041A8
ECU: Car access system
Status: Pending, Confirmed

============11==============
800604
Raw code: 800604
ECU: High beam assist[Archive (inactive)]
Status: Confirmed, Test failed since last DTC clear

============12==============
B7F8AF
Raw code: B7F8AF
ECU: Infotainment system[Archive (inactive)]
Status: Test failed since last DTC clear, Test not completed during this operation cycle

============13==============
030101
Raw code: 030101
ECU: Central module (in driver's footwell) (FRM)
Status: Test failed (current drive cycle), Pending, Confirmed, Test failed since last DTC clear

============14==============
8011FA
Raw code: 8011FA
ECU: Climate/heater/Air conditioning
Status: Pending, Confirmed, Test failed since last DTC clear
 

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Discussion Starter · #3 ·
Hello,

Thank you for your reply. I've cleared them quite frequently to check it. The light just keeps popping on.

I've open the air intake and throw some cleaning egr spray at mid revs, but still.

The car is just fine, although with light on I've got the power except on the mornings where it hiccups a bit.

I guess I will have to go one by one on the hardware replacement. The error I get is pretty vague
 
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