[achu]

Originally Posted by old grey steve

the cars soooooo low to look on any of our standard ramps

[windymissile]

Originally Posted by achu

only ever Shell V-Power in my 2 year ownership (but the car is coming up to 9 years old so who knows what she's been fed for the previous 7)

Just thought I would check. I once put 95 in as I was stranded in the middle of nowhere and the car ran like shit under any serious amount of throttle. Switched back to 99 and the misfires disappeared.

WM

[achu]

Originally Posted by windymissile

Just thought I would check. I once put 95 in as I was stranded in the middle of nowhere and the car ran like shit under any serious amount of throttle. Switched back to 99 and the misfires disappeared.

WM

yeah i thought maybe it was fuel too as i've had issues with bad fuel on my previous car, but after a fuel tank from a different shell, i still had the same issue...

[Russbmw]

Good news it's all sorted now.

As I said on my thread, my car was exhibiting what felt like misfires too. HPFP was fine on mine, as was everything else including coil packs.

The intake look exactly like yours though, fucking caked in shite.

Bet it feels like a new engine now.

Nice work as usual Steve, very thorough.

[achu]

Originally Posted by Russbmw

Good news it's all sorted now.

As I said on my thread, my car was exhibiting what felt like misfires too. HPFP was fine on mine, as was everything else including coil packs.

The intake look exactly like yours though, fucking caked in shite.

Bet it feels like a new engine now.

Nice work as usual Steve, very thorough.

haha caked in shite... yeah it didn't look pretty... i've always wanted to do a walnut blast but i always postponed it, this forced me to do it - can't wait to do some mad runs

[MattOz]

Mine had that hesitation and what felt like a misfire under load. Thinking 80mph roll ons on the motorway. Had the inlet ports blasted and it fixed the issue. Car pulls much more cleanly and the fuel economy has risen by 2-3mpg. Can't enthuse about it enough for cars with DI. What were manufacturers thinking???

[Dann]

DI is a far superior method of injection. It's much easier to control the amount of fuel being injected etc.
Miles better for power and economy

[zltm089]

Sorry to threadjack....

I know the common failing parts that could cause a misfire are spark plugs, coil packs or injectors.

Can failure of the hpfp cause misfires?

[old grey steve]

Originally Posted by zltm089

Sorry to threadjack....

I know the common failing parts that could cause a misfire are spark plugs, coil packs or injectors.

Can failure of the hpfp cause misfires?

Yes and injector shut down