I¨'m looking at group 003 on engine module on my 2001 Audi A4 1.9TDi PD. It says "Engine speed", "MAF specified", "MAF actual" and "EGR duty cycle".
When the engine is idling, the MAF specified is indicating 250 and MAF actual is aorund 250 (230 to 255 or something). BUT, when the engine has been idling for 3-5 min. the MAF actual is increasing to about 450, but the MAF specified is still showing 250. If I push the throttle and release it again the MAF actual goes back to around 250. But after 3-5 min it increases again to around 450.
Is this correct or not ?
When the engine is idling, the MAF specified is indicating 250 and MAF actual is aorund 250 (230 to 255 or something). BUT, when the engine has been idling for 3-5 min. the MAF actual is increasing to about 450, but the MAF specified is still showing 250. If I push the throttle and release it again the MAF actual goes back to around 250. But after 3-5 min it increases again to around 450.
Is this correct or not ?