Supercharged vr6 lamba problem

[Goudgey 0]

Hi got a problem with my 1997 supercharged vr I can't get a lamba reading using Vagcom what so ever,so changed the sensor for a new one it's a NGK one,still no readings,checked all the wiring,I am getting a faulty ecu code all the time but the car runs ok but holds back a little until high rpms so I thought it was down to the chip install that went with the supercharger,do you think the ecu isn't registering the sensor.

Thanks for your time any help on why I can't get a readings would be great

[RsvRob 6]

Any way of checking your afr's on cruise??

Sent from Dagobah

[Goudgey 0]

Hi haven't tried,only stationary with the engine temp hot,don't know if I should try another sensor but a Oem one,thanks for your reply

[RsvRob 6]

Use a wideband afr reader to check fueling via your exhaust. If it's ok then not to worry.

If the ecu is not registering a signal from the lambda then it should switch to closed loop and just use the fuel map rather than use the lambda

You may find you haven't fitted the correct sensor. Lambda's aren't all the same. You'd need to find the correct matching sensor from oem.

Sent from Dagobah

Edited December 16, 2013 by RsvRob

[Goudgey 0]

Thanks very much for your help,ordered a vw sensor now just to cover myself,will sort out a wideband afr unit aswell,thanks for your time.