Fault codes and poss air flow meter fault
This relates to a 1999 1.8 TS 156. Flat spots, general lacklustre performance, sometimes almost a misfire. Plugged Alfadiag in and get P1172 and P1173. I set Alfadiag to give me a readout of mass air flow and air temperature then went for a drive. The mass airflow line was completely flat at the bottom of the trace throughout. The air temperature was saying 18 degrees.
As the air temperature was actually nowhere near 18 degrees (more like 8 in fact!), I'm assuming all this suggests air flow meter? It's done just over 90k so I wouldn't die of shock if it was!
Also tried logging lambda (not sure if I got the right one there seem to be loads to choose from!) but rather than the usual "square wave" I get a line pretty much running along the top of the graph with occasional small dips in it.
1. Does that seem like a reasonable diagnosis?
2. Is there a list of Alfadiag fault codes and their corresponding descriptions anywhere on the 'net?
3. How can I tell if my car is a CF2 or CF3? I've heard these terms used in conjunction with airflow meters but don't knwo what to order.
4. Is there anything else it might be?