Car appreciation... the aesthetics, the engineering, etc

also, would it overheat at a steady 50 mph on the motorway? Too slow for decent airflow?

And you might as well do the dizzy cap too for another £5.

So why would it get better again? Same with injectors?

Hefty - did Dizzy at the same time as rest of ignition.

Coil is only thing we didn't change.

Vac leak?

What's your thinking Richie?

I'm wondering if this is the remnants of my cat blocking the exhaust resonator/muffler and acting like a big cork.

Coils warm up pretty quick, hence when they start to break down the more heat cycles the worse it gets.

But they're pence, so I'd change the coil before looking for vac leaks and fuelling faults. Worst case you've bought a spare coil for the future.

Just seem to remember similar issues, ie loss of power when opening throttle / missfiring etc. Might not be but as others have said worth a check.

Quick google says about £60 and not sure if it is both parts.


Put winter tyres onto some nice light wheels and added 30mm either side. Possibly 10mm too much with stock arches. Fun to drive though

Occam's razor would suggest one problem rather than multiple- so what we are looking for is something that has made the car lose 100bhp/boost slowly and only to 0.7bar rather than boost fast to 1.4bar.

It also chokes when larger throttle openings are applied after some time (1 hour plus) running.

Split or collapsed hose as BRM said sounds plausible. When cold and stiff it's okay, warm and floppy it's a problem.

Sounds like it could be lack of air to me. How's your intake/filter looking?

Air filter is brand new and we disassembled the entire intake system, checked for leaks, cleaned and reassembled it.

I agree- it feels like a hose sucking shut, but I don't think it can be, which is why my thinking is rather than being an intake issue it is an exhaust issue.

That said, if Mr Skuzzle pulls a tennis ball out of the throttle body tomorrow morning then happy days.

Oh- revs freely under no load.

Sounds even more like lack of air. If the air filter is new and the intake has been checked, it sounds possible that there's an exhaust obstruction.

On a side note, I feel the Volvo could benefit from an external wastegate and screamer setup. You know, for the LELZ.

If the cat is blocked then a rapid de-cat/test-pipe install will occur.

Mr Skuzzle doesn't think that is likely though as a massive amount of oil would have had to be going through it to block it.

But that said if the turbine is dying, would it dump enough oil into the exhaust to kill the cat?

Would cat "get better" from sitting and cooling down?

Just checked, 100 cell cat and two straight through silencers- none of that sounds likely to block. Goddamnit.

What if the turbo is malfunctioning in some way when it gets hot?

Would it get hot at partial throttle/5th gear/50mph?

steampunk rat

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Would lack of air cause the car getting hot? Unless there is a serious fault in the cooling or lubricating system.

Once a hose collapses under vacuum/pressure the next time it collapses the tube require less pressure than the first as the pipe degrades. You can get failure or reinforcement that cause partial internal collapse but those are usually easy to tell be feel or view.

The car temp gauge is rock steady, where it has always been half way round the dial.

Coil