A day or two ago someone suggested Wynn's carb cleaner to clean out the throttle body and Idleing control valve. I've used carb cleaners before but I have to admit Wynn's is a lot better, only trouble is now I've cleaned everything that needs to be cleaned with the carb cleaner, my engine is now running at about 1100 revs, any ideas what could have happened and what to do about it? It cannot be anything else, cause I did nothing else.
Try re-setting your ecu. pull the plug for an hour then re-connect. From what i can gather from previous posts if u change anything to do with the ecu system a reset is sometimes nesesary(sp). Its worth a try.
Can no -one help as to why after using the carb cleaner the engine suddenly reves more. At the moment its running at 1100. The screw on the side of the ECU which I know you all know is situated on top of the AFM, is it for the mixture or for the revs? I don't want to touch it until I know for sure.
PS I have already disconnected the battery for over an hour earlier on this evening but it seemed to have made no difference.
that is the mixture yes, but dont touch it, its set at factory then should be blanked off. It sounds like one of the hoses you disturbed when cleaning the idle valve might be slightly adrift, or maybe split. its hard to say, we are just guessing from the info you give us.
Well I know its now past midnight, but I've just spent an hour with the bonnet up going through all the hoses and they are all fine, I'm at a total loss as to what it is, thats causing it, all I did was spray half a can of this cleaner into the inlet manifold and the throttle housing, not to mention the idle control valve, and now the revs are all over the place. (well 1100 anyway)
I've disconnected the battery and will leave it like that till the morning and if that doesnt work, I will have to drive it like that and hope it settles down. If anyone else can help in the meantime, I sure as hell would appreciate it.
thanks for your reply, but I have had the engine running for most of the evening. I was listening for any air leaking but there was nothing. I will leave it now to go cold and also the battery is disconnected and we'll see what happens in the morning, a bit like re-booting a computer.
If your still having problems and u think it might be an air leak try this. Start your engine and spray wd40 or something like it over all the hoses and note any rev changes. I was shown this ingenious little trick by a mechanic after pullin ma hair out trying to find out why my car would not idle. It turned out to be the inlet manifold, in my haste i had forgotten to remove the bits of old gasket stuck to the manifold. good luck
Thanks mate but if you go to the post 'Vauxhalls opinion of carb cleaner', I've explained how I sorted out the problem. But thanks anyway because if anything like that does happen again I can bear that little trick in mind. Cheers.