Black smoke coming out of exhaust less power not picking up speed?

Tiny
MONSTERMUNCH3991
  • MEMBER
  • 2010 AUDI A3
  • 1.6L
  • 4 CYL
  • 2WD
  • MANUAL
  • 127,000 MILES
Black smoke.
Friday, June 2nd, 2023 AT 9:25 AM

1 Reply

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,709 POSTS
Hi,

Black smoke indicates a rich fuel mixture (too much gas and not enough air). Check the basics first. Make sure the air filter is clean and there are no obstructions in the air induction tube.

Next, if that is all clear, we need to check the fuel pressure. We may have a faulty regulator or a leaking injector. Here is a link that explains how to check. Note: the regulator is integral to the fuel filter on this vehicle.

https://www.2carpros.com/articles/how-to-check-fuel-system-pressure-and-regulator

Also, I need confirmation on the engine size. A 1.6L isn't shown in any of my manuals. See pic below. The remaining pictures are specific to your vehicle for testing fuel pressure.

Let me know.

Joe

See pics below.
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Friday, June 2nd, 2023 AT 8:34 PM

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