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[Lazydocker]

Remember it... Yep.

So, it all got noisy again?

Don't think it's a LPG related problem... Still think it's oil thinning too much/starvation due to relief valve sticking etc?

Time to get a pressure gauge on I think :-/

I think its fuelling. Suspect it won't happen on petrol.  Possibly reaching the limits of single hole tank at, errr, 70mph.

Think the lifter issue is unrelated to that....

Sorry, we were talking about 2 different things

Could be the limits of multivalve... But Chris' doesn't lean out at WOT so yours should be OK :-/

[TheBoy]

Remember it... Yep.

So, it all got noisy again?

Don't think it's a LPG related problem... Still think it's oil thinning too much/starvation due to relief valve sticking etc?

Time to get a pressure gauge on I think :-/

I think its fuelling. Suspect it won't happen on petrol.  Possibly reaching the limits of single hole tank at, errr, 70mph.

Think the lifter issue is unrelated to that....

Sorry, we were talking about 2 different things

Could be the limits of multivalve... But Chris' doesn't lean out at WOT so yours should be OK :-/

Mine doesn't in 1st and 2nd when I last checked. Wonder if it is when foot flat to floor, after its popped into 4th. Inst MPG is 7.1mpg at this point.

Hopefully Kevin will remember what he saw on the sensors....

[Kevin Wood]

Sorry, been sitting in airport corridors courtesy of Easyjet this week.

Yes, I remember the problem. It was a hard misfire at 5-6000 RPM IIRC. <cough!> must have been in 1st or 2nd gear, then?

I don't remember it going lean and I was watching the lambda outputs at the time, all solidly on the rich side. Vapour pressure was pretty stable, IIRC.

I thought at the time that it might have been related to the issues the engine had - i.e. something had let go, but it all went back to normal after lifting off.

Ignition issue would be my first thought. Can it be provoked at all on petrol?

Kevin

[Lazydocker]

Sorry, been sitting in airport corridors courtesy of Easyjet this week.

Yes, I remember the problem. It was a hard misfire at 5-6000 RPM IIRC. <cough!> must have been in 1st or 2nd gear, then?

I don't remember it going lean and I was watching the lambda outputs at the time, all solidly on the rich side. Vapour pressure was pretty stable, IIRC.

I thought at the time that it might have been related to the issues the engine had - i.e. something had let go, but it all went back to normal after lifting off.

Ignition issue would be my first thought. Can it be provoked at all on petrol?

Kevin

That's my recollection too.... Although I was trying to lean forwards and look from the back seat

[TheBoy]

Sorry, been sitting in airport corridors courtesy of Easyjet this week.

Yes, I remember the problem. It was a hard misfire at 5-6000 RPM IIRC. <cough!> must have been in 1st or 2nd gear, then?

I don't remember it going lean and I was watching the lambda outputs at the time, all solidly on the rich side. Vapour pressure was pretty stable, IIRC.

I thought at the time that it might have been related to the issues the engine had - i.e. something had let go, but it all went back to normal after lifting off.

Ignition issue would be my first thought. Can it be provoked at all on petrol?

Kevin

Yes, defo 1st or 2nd gear. 3rd would have been irresponsible .

This time it did it shortly after popping into 4th (about 2s later). It had gone through 1, 2 and 3 without missing a beat...

Not had the opportunity to try on petrol due to needing a good stretch of clear road.

[Kevin Wood]

This time it did it shortly after popping into 4th (about 2s later). It had gone through 1, 2 and 3 without missing a beat...

Not had the opportunity to try on petrol due to needing a good stretch of clear road private test track.

 

Just a quick misfire which cleared again?

Have you checked for codes? Just wondering if the crank sensor is struggling at high RPM (although I guess revs weren't stellar as it had just upshifted).

Kevin

[TheBoy]

This time it did it shortly after popping into 4th (about 2s later). It had gone through 1, 2 and 3 without missing a beat...

Not had the opportunity to try on petrol due to needing a good stretch of clear road private test track.

 

Just a quick misfire which cleared again?

Have you checked for codes? Just wondering if the crank sensor is struggling at high RPM (although I guess revs weren't stellar as it had just upshifted).

Kevin

Only code is the usuall 55 'Replace ECU' Not Present that I always get after she has used the car...