finally took to a shop and after 3 days they said i had a Bad ECU. I find this hard to believe. as they also said that there was no continuity between the ECU and the O2 Sensor. does anyone have a pinout for an 09 ECU?
P0140 O2 sensor circuit no activity detected
P0141 O2 sensor heater circuit
Have tried 2! known good O2 sensors. so thinking the wiring is messed up somehow. but i have tested the car side of the connector and the wiring seems good. ground is ground and there is voltage on the heater...
Stage 2? i guess i should list out my other mods. but no a stage 2 will not fix my problem. K04 with a full 3" exhaust, AFE intake, R8 Coils, Divert Relocation. Im on a K04 Tune already :) oh....and GO Bucks!
Ok im at wits end here trying to trace out why i'm still getting CELs for my 2 downstream Oxygen sensors. Should i have a spacer on Both of the rears? I have a 2009 TSI with 3 Oxygen sensors. 1 (what seems to be a wideband) up at the turbo outlet. 2nd just before the highflow cat in the CTS...
Boost leak found and fixed. Took her for a spirited drive down the road. Still hesitating at WOT. 2 pending faults o2 #2 heater circuit and #3 heater circuit. my guess is she is still running rich.
Eurodyne messaged me back today. Told me that the current Software dos NOT support the 3 bar map sensor. Im back on the 2.5 and its running more stout but now i have a whistle coming from the engine bay. So now im hunting what i think to be a boost leak. fun.
i swapped it back last night. have yet to log anything today. did a little reading last night that its more of an issue with the ECU itself. that theres no good way to "recalibrate" for the 3Bar sensor output.
Trying TP 2.0 protocol, address :1
Controller part number :1K0907115AF
Configuration :0010
System name :2.0l R4/4V TFSI
Long coding :0403010818070160
FT Code :
Hardware part number :1K0907115AD
Controller serial number:VWX7Z0H63NH8IM...
Recently upgraded to a K04. This is a DIY install so ive had to modify the turbo outlet top make it work. Here is a list of my mods:
CTS charge pipe (pancake eliminator pipe)
R8 Coils
3 Bar Map
full 3" CTS SS exhaust turbo back
AFE intake
Diverter Valve relocation
Eurodyne K04 tune with...