So I finally got around to removing the dual cone intake and turbo wing yesterday and put the standard airbox and deck lid back on to see if it was this causing all my problems! Hey presto... all seems good again! I went for a good drive yesterday and the engine is running sweet and so far no CELs!
For some background, after fitting the dual cone intake I have had running problems and CELs for over rich running and misfires, although this did settle down after a while, initially just rough idling, a bit of a flat spot at around 3000 rpm but the engine would pull strongly past 5000 rpm, probably better than before!
I had a full Hartech engine rebuild in April, initially the engine ran as before but after a few weeks I started to be CELs again and the engine would intermittently run quite rough, I got some misfire codes on cylinders 1 and 4 and the over Rich fault code permanently, the flat spot at 3000 rpm developed into almost an on off stutter, like the engine would cut out, strangely this was only when accelerating in top gear! This seemed to be getting progressively worse and I was concerned that something else was complicating the issue. Power seemed to be down too! The only other difference since the rebuild is that I had new sports headers fitted when the engine went back together!
Assuming all is well and I don't get any more CELs, I am now in a dilemma whether a remap would sort out the running issues with the dual cone intake fitted or if there is something fundamentally wrong with set up!
I had disconnected the battery before putting the standard airbox back on to reset the ECU, it seemed to adapt straight away, idling and running perfectly!
May have to find a different solution if I want to put the turbo wing back on!!
For some background, after fitting the dual cone intake I have had running problems and CELs for over rich running and misfires, although this did settle down after a while, initially just rough idling, a bit of a flat spot at around 3000 rpm but the engine would pull strongly past 5000 rpm, probably better than before!
I had a full Hartech engine rebuild in April, initially the engine ran as before but after a few weeks I started to be CELs again and the engine would intermittently run quite rough, I got some misfire codes on cylinders 1 and 4 and the over Rich fault code permanently, the flat spot at 3000 rpm developed into almost an on off stutter, like the engine would cut out, strangely this was only when accelerating in top gear! This seemed to be getting progressively worse and I was concerned that something else was complicating the issue. Power seemed to be down too! The only other difference since the rebuild is that I had new sports headers fitted when the engine went back together!
Assuming all is well and I don't get any more CELs, I am now in a dilemma whether a remap would sort out the running issues with the dual cone intake fitted or if there is something fundamentally wrong with set up!
I had disconnected the battery before putting the standard airbox back on to reset the ECU, it seemed to adapt straight away, idling and running perfectly!
May have to find a different solution if I want to put the turbo wing back on!!