DBS Superleggera Drivetrain Issue
DBS Superleggera Drivetrain Issue
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ress

Original Poster:

37 posts

90 months

Tuesday 22nd September 2020
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Hello,

I'm starting this thread primarily to document my recent issues with DBS Superleggera (AE31 engine). I bought it brand-new a year ago, now with 16k km on the clock.

Roughly two thousand kilometers ago (at 14k km), the car has started showing CEL but only in a specific situation - highway, steady 80 km/h (in a construction zone), GT mode, full-auto, low throttle/RPM. Sometimes (rarely), after 10-15 kilometers there could be a CEL flashing for a few seconds, then disappearing and not coming back. But one day, the CEL stayed lit. From that day, the car has started to have a sluggish acceleration, but only sometimes.

The CEL was triggered by the following fault code:

P2237 - Heated oxygen sensor (HO2S) 1, bank 1, positive current control - open circuit

Most of the time, the car runs fine, but when there is a reduction in power, the following code is always present:

P0172 - System too rich, bank 1

The car has been diagnosed by the dealer and will go for detailed coils/sparks/O2S analysis and possible replacement. Will keep you posted.

ress

Original Poster:

37 posts

90 months

Saturday 3rd October 2020
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Update - O2 sensor has been replaced, so far it seems the issue is fixed.