P0150 lamda 2 signal above & P1155 preheati *error codes on Fiatecuscan Alfa 147 1.6
I recently connected to my 2002 Alfa 147 1.6 to registered version of Fiatecuscan & the following error codes came up:
1. P0150 lamda 2 signal above catal
2. P1155 preheating resistance 2 above catal*
No lights are on in the dash.
I have cleared the P0150 several times but it has come back, the P1155 only came up the last time I connected & also cleared with no problems.
Along with the error codes Fiatecuscan says the "codes are stored, clear error codes & monitor in future(may not be exact words but something along those lines).
The performance of the car seems normal.
What do these codes/messages mean, do they matter as they clear every time & don't affect performance & what do I need to do to get rid of them?
Any help/tips would be appreciated.
Last edited by donnay; 15-11-11 at 23:06.
Reason: Forgot to mention there were no lights on dash