100% Free

No Scanner Needed

Carly logo

liliankrause28

Audi A2 Power Loss Mystery with Stored Engine Code

Loss of engine power

|

Fault stored

Need advice, engine power loss and fault code on Audi A2. Recently, my car started showing reduced performance and the engine seems to be running with less power than usual. My local mechanic seems unsure about the cause, which makes me nervous about potential repair costs. The scan tool shows there is a fault code stored, but I did not get clear information about which one. Has anyone experienced similar issues with their A2? Looking for suggestions before I take it to another shop. Car details: 2000 Audi A2, Gasoline engine, 158390 km, Main symptoms: Power loss, stored fault code

4 comment(s)


paulschulze95

Had a similar situation with an Audi A3 1.8T from 2003. The symptoms matched exactly, power loss and engine running poorly. The auto scanner revealed multiple diagnostic codes related to the ECU programming. The root cause was faulty chip tuning performed by a third-party shop. The improper programming caused the engine control unit to run incorrect fuel maps, leading to performance issues. This required a complete ECU reset and reprogramming to factory settings. The repair process involved: 1. Full vehicle diagnostics to document all fault codes 2. Removing the modified ECU programming 3. Restoring original manufacturer software 4. Testing engine performance under load This was a serious issue that could have caused long-term engine damage if left unaddressed. The car computer needed proper recalibration to restore normal operation. Suggestion: Have a professional diagnostic scan done at a specialized shop. Given your A2s symptoms, checking the ECU programming should be a priority. Improper tuning or programming errors often cause these exact issues. If chip tuning was done previously, mention this to the technician as it helps narrow down potential causes of the engine issue.

liliankrause28 (Author)

Thanks for sharing those details about the ECU reprogramming fix. Your situation does sound very close to what I experienced. My power loss issue actually got resolved at a specialized Audi shop where they used their professional scan tool to identify the root cause. Would you mind sharing how much the ECU reset and reprogramming ended up costing you? And has the car been running smoothly since the repair? Just want to compare notes since vehicle diagnostics can get pretty expensive. I noticed a few other small issues popped up on my car computer after the initial fix, so curious if you had any similar experiences with your A3.

paulschulze95

Good to hear you got it resolved at a specialized shop. When I had the ECU reprogramming done on my A3, the total cost came to 180 Euro for removing the faulty chip tuning and restoring factory settings. The vehicle diagnostics confirmed it was definitely caused by poor third-party programming. Since the repair, the car has been running perfectly with no dashboard lights or error codes showing up. The engine power returned to normal immediately after the fix, and the car computer has stayed clear of any additional fault codes. Having the proper diagnostic scan and repair done by professionals really made the difference. Unlike your situation, I did not experience any additional issues after the ECU reset. This suggests you might want to have another full vehicle diagnostic scan done to check those small issues, just to be on the safe side. Sometimes when the main problem gets fixed, it becomes easier to detect other underlying concerns that were masked by the bigger issue.

liliankrause28 (Author)

Thanks for the input. Just wanted to share how my situation turned out. After getting multiple opinions, I took the car to a specialized shop that really knew their stuff with Audis. They immediately hooked up their professional scan tool and found the actual fault code that was causing the power loss. Turns out it was indeed an ECU-related issue, but in my case it was caused by a failing sensor that was sending wrong signals. The repair cost was 250 Euro including parts and labor. The check engine light cleared up right after they fixed it. The engine power came back completely and the car runs great now. No more performance issues or warning lights on the dashboard. The mechanic also did a full system check while they had it and gave it a clean bill of health. For anyone facing similar issues, definitely worth getting it checked at a shop with proper diagnostic equipment rather than trying to guess what the problem might be. The repair ended up being much simpler and cheaper than I initially feared.

Let our mechanics help you!

Car Brands
carly-logo

© 2025 Carly Solutions GmbH & Co. KG. All rights reserved