Hello folks
Coming home this evening there's a noticeable sluggishness to acceleration where there used to be a steady curve of power. Noticeable enough that I popped open the bonnet when I got home to listen to the engine but couldn't hear anything desperately concerning.
I've heard the Vanos death rattle on youtube before - engine sounds ok to me although idling sound could be a little different from before.
I've been trying to think how best to describe it... almost like it's gone from being a bouncy, spritely sprint away on toes to a speed up from a steady jog on your heels - it gets there but without the same oomph.
It had a longish run of 100+ miles at weekend. I've just taken it on a 25 mile run this evening and once oil was up to temp tried the upper limits of legal speed to see if that cleared it.
It gets to that speed and doesn't audibly complain but I'm feeling it's not as rapid as it was through any part of the rev range.
It's most noticeable between 2-3k revs in all gears where previously it would cruise along and feel a hell more responsive than it currently does.
Odd that I don't recall the problem this morning - certainly felt ok last night and it's just been in the office car park today.
I've been running Vpower for a couple of weeks now and the current tank is down to a quarter, same tank of fuel from the weekend (same Shell station but a top up on the original tank I used for the 100+ round trip)
I tried to reset the 'adaptive' thing on the ECU (Ignition turn 2 for 10 secs then off and start car normally?) for the run this evening.
Any suggestions as to what to try to diagnose this further guys? Am I right in thinking it's going to be air or fuel issues? Just can't think of any reason the car would alter performance since yesterday.
Cheers
Coming home this evening there's a noticeable sluggishness to acceleration where there used to be a steady curve of power. Noticeable enough that I popped open the bonnet when I got home to listen to the engine but couldn't hear anything desperately concerning.
I've heard the Vanos death rattle on youtube before - engine sounds ok to me although idling sound could be a little different from before.
I've been trying to think how best to describe it... almost like it's gone from being a bouncy, spritely sprint away on toes to a speed up from a steady jog on your heels - it gets there but without the same oomph.
It had a longish run of 100+ miles at weekend. I've just taken it on a 25 mile run this evening and once oil was up to temp tried the upper limits of legal speed to see if that cleared it.
It gets to that speed and doesn't audibly complain but I'm feeling it's not as rapid as it was through any part of the rev range.
It's most noticeable between 2-3k revs in all gears where previously it would cruise along and feel a hell more responsive than it currently does.
Odd that I don't recall the problem this morning - certainly felt ok last night and it's just been in the office car park today.
I've been running Vpower for a couple of weeks now and the current tank is down to a quarter, same tank of fuel from the weekend (same Shell station but a top up on the original tank I used for the 100+ round trip)
I tried to reset the 'adaptive' thing on the ECU (Ignition turn 2 for 10 secs then off and start car normally?) for the run this evening.
Any suggestions as to what to try to diagnose this further guys? Am I right in thinking it's going to be air or fuel issues? Just can't think of any reason the car would alter performance since yesterday.
Cheers
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