Lordbil1979

I Have only drive 250 miles mostly motorway when pick up a car when buying over a week ego, it's difficult to compare to mine other tuned c5 approx 165hp as I forgotten how fast or sluggish was before, but on motorway was accelerating fine up to approx 70mph but over and up to hills it's flet loosing a bit of power, I think at that speed my swirls not working properly it was closing them instead open so engine probably was choking?

Sorry for my mistake I have 0,6 vaccum on top of valve this is the valve http://www.ebay.co.uk/itm/401131281815 When I connect top of valve direct to swirl its moving to correct position towards windscreen so I don't think it's 180 degrees wrong way .Its not as fast as my other c5 swirl, lets say it's take approx 1sec to move arm full way back,But my problem is I don't have vaccum in lower pipe of that valve,I think my brakes works fine but i have error on lexia - Brake light switch.There it's way more errors as steering wheel angle sensor and more but car it's not in limp mode.

Hi, yes diaphragm actuator it's in good condition no leaking as when I connected one of pipes with 0,6 pressure avoiding electro valve it's moving to close position.I check all visible pipes and replace 2 so I don't see any split pipes and all electro valves seams working as swap them to other c5 and they working fine.

Hello I need help with swirl valve.I read all posts around but don't find solution in my case.My swirl valve it's not working staying in open position as engine running idle.When going over 2000rpm valve it's going to close position opposite way.I think my problem is with electro valve (valve fitted to block of engine) which going straight to swirl. I have to say i have another c5 2.2 hdi which works brilliant and I check all electro valves swapping them to working c5, and all of them working fine.So I check pressure on electro valve fitted on block and I have over 0,6 going in the valve but I read 0 on out going to swirl, so it's seams as valve stay open all the time but that valve works fine in other c5, I check plug but Its show as it's have electric signal there.Do my ecu not allowed valve close at idle and why? Sorry for my English.