AUDI Q7 LOSS POWER AT TRAFFIC , NO FAULT CODES

**hguritr** · 19th September, 2019, 10:51 AM

Hello everybody , i have 3 months that audi q7 destroyed me ... when the car warm up ( at operation temperatures) it loose power and it doesnt go more than 2500rpm ... when you pass from traffic to highway , after 5minutes , it is ok everything , the car is powerfull ... but anytime it doesnt show any fault codes ... i have changed MAF , cam sensor , water sensor , still the same shit ... i have reprogram the ecu through ktag , still the same ... i have make dpf egr off , still the same ... does anyone have a strange experience like this ?! thanks all

**autoden** · 19th September, 2019, 07:54 PM

No mention of scanner, no live data, no testing = no crystal ball.

**tazz75** · 19th September, 2019, 07:59 PM

Try to change ECU..or clean it ...or first check wires and connections,Ecu Pcb soldering's..

**Meat-Head** · 19th September, 2019, 09:19 PM

ON TOPIC:-

No, but there is a production car, don’t know which one, that does this as a feature.

what happens is at traffic lights the cooling fan is activated by the a/c which the air scoop sucks in fresh
hot air which is less dense.

OFF TOPIC AND ON TOPIC:-

che

et corvette C4 has an electric fan like a vacuum cleaner, to stop this issues
no idea if Audi has.

ON TOPIC:-

see if pipe on air filter box loose, or is it aftermarket air filter?

rember dk thanks button goes a long way

**smajli** · 19th September, 2019, 09:32 PM

Brother, Q7 has problem with water in ECU. Ecu is located on right side under hood, near windshield. Open ECU, and check it inside

**hguritr** · 12th November, 2019, 07:51 PM

i have changed the ecu , still the same shit ...

**Meat-Head** · 12th November, 2019, 08:34 PM

Originally Posted by hguritr

i have changed the ecu , still the same shit ...

Is there any DK thanks button sticking the brakes on?

**kc cars** · 13th November, 2019, 01:30 AM

You need to read live data while driving and capture the problem.
Car was remmaped before?
Check if faults codes are not switched off in ecu

**Pavel-DN** · 21st November, 2019, 09:56 AM

A problem with the turbine actuator, the motor inside the actuator, or the turbine jams when heated

**Meat-Head** · 28th November, 2019, 11:12 PM

Bumpage any old iron

**DiegoStud** · 3rd December, 2019, 04:39 PM

Gone quiet this one.
Guessing he finally went out and took some readings; it had that much power on the highway all live data went to 11, but then lost so much power in traffic he never made it back home to report it.
Shame really, at least somone will find him and report in the UFO section