Fault Codes

[squartus]

Had few codes thrown and cyl 1 misfire detection last week. Put new coil pack in cyl 1 and took for a spin, now have these poping up.
Thoughts?
Timing?
Injectors?
Fuel Rails?
DME?

1. 273E Lambda sensor terminal stage heating VKAT bank 1
2. 2741 Lambda sensor heating control diagnostic VKAT bank 2
3. 2740 Lambda sensor heating control diagnostic VKAT bank 1
4. 274F Lambda sensor error Nernst cable VKAT bank 2
5. 274E Lambda sensor error Nernst cable VKAT bank 1
6. 2749 Lambda probe Diag. viaATIC42-device VKAT bank 2

Discriptions I looked up:

273E Signal temper.sensor exhaust1
2741 Pedal-travel2 permanently (Voltage supply?)
2740 Pedal-travel1 permanently (Voltage Supply?)
274F Misfire, Checksum failure, service rel.
274E Misfire detection, Checksum failure (All Cyl?)
2749 Misfire detection cyl

Both pre cat o2 sensors only have 2k on them "replaced them twice recently"
Spark plugs only have 3k on them.
62k on coil packs
32k on ESS 625 white fuel injectors
Built stroker engine

[dpilat8588]

sounds like bad O2 sensors

[squartus]

Originally Posted by dpilat8588

sounds like bad O2 sensors

Both precats have been replaced twice in the past 3k.

[Patrón]

i'm only guessing because of the 'pedal travel' description but is it similar codes for throttle actuators?

[squartus]

Originally Posted by Patrón

i'm only guessing because of the 'pedal travel' description but is it similar codes for throttle actuators?

Weird thing is its not going into limp mode, no reduced power etc.

[Patrón]

Originally Posted by squartus

Weird thing is its not going into limp mode, no reduced power etc.

Shady1 member keeps going through O2s. i hope this isn't common with supercharged cars. I replaced my bank 1 pre cat a month ago (have gone two years supercharged without an issue).

sorry i'm no help, did you buy OEM O2s when you replaced them?

[squartus]

Originally Posted by Patrón

Shady1 member keeps going through O2s. i hope this isn't common with supercharged cars. I replaced my bank 1 pre cat a month ago (have gone two years supercharged without an issue).

sorry i'm no help, did you buy OEM O2s when you replaced them?

Got bosh both times, had to replace them about 20k ago as well, got bosh then as well.

[squartus]

Looks like its a voltage issue from the DME, tracking down to see if its wiring or the DME itself.

Will update incase anyone else gets same codes, might also explain why I was eating 02 sensors.

[agenator]

any update?

[Patrón]

Originally Posted by squartus

Looks like its a voltage issue from the DME, tracking down to see if its wiring or the DME itself.

Will update incase anyone else gets same codes, might also explain why I was eating 02 sensors.

i'm hoping it was a bad battery or the cable that is under the recall campaign. I haven't seen an update from Shady1 either.

[squartus]

It required a new DME, zero codes now. Tried everything else for like 2 weeks just to make sure but no dice.

[Route 16]

Originally Posted by squartus

It required a new DME, zero codes now. Tried everything else for like 2 weeks just to make sure but no dice.

getting a new DME, wouldn’t that be basically a new brain for the car?

[Snappa2000]

Guys,

Have a look at my last post on this thread, might help as it was all getting too coincidental

O2 Sensor Fault Codes

Edited: Original post had the wrong link