Hi, see below copy /paste of my earlier post on this subject. Look further back on this thread for my other input which might help. Been running 3 weeks since fitting new solenoids and all good so far. No doubt that car runs better too. I replace both although probably only need to do one but as they were so much cheaper from US thought I would do both in case other one on way out. Car done 110,000.
Quick update on my P00011 code which I sorted temporarily by cleaning gauze on ex/in solenoids. After a couple of weeks, EM light back on again. Bought myself a lead and software to read codes on my laptop, garage visits getting expensive! Same code came up. Did some research again and looked more like solenoid issue. Found on here that GM parts in states are the same. Found somewhere on E-bay, 'Partsnextday' that could supply solenoids at less than half price here including shipping/customs. Ordered exhaust and inlet , received 2 weeks later, fitted and all running lovely. Much more responsive and generally running better all round. Didn't realise how bad running had got as think it was gradually getting worse over time. Away with work at moment will post more details, part No.s etc when I get home.[/I][/I]