The enchanted broomstick Posted January 12, 2006 Report Share Posted January 12, 2006 So i have absolutely huuuuuge interference levels coming through my stereo, its not through the front speakers which are running solely from the headunit its from the rear speakers and sub.I know about not having the RCA (phono cable) right next to the power cable so i have the RCA cable running down the right hand side of the car (sitting in drivers position) and the power cable running down the left hand side of the car. I have added an interference surpressor to the power supply going to the headunit but still get major interference levels and its really bugging the hell out of me.any ideas?Also anybody ever had problems with a renault car revving itself? I mean like "hunting/searching" as people call it on idle or when i put the clutch right in.stu Quote Link to comment Share on other sites More sharing options...
Danny Posted January 12, 2006 Report Share Posted January 12, 2006 Is the rca wire running near any power wires behind the dash? Quote Link to comment Share on other sites More sharing options...
george_seamons Posted January 12, 2006 Report Share Posted January 12, 2006 What RCA cables do you have? I'm guessing cheapy ones? By the sounds of it, they don't have sufficent sheilding. Try some better shelided cables. You want to spend at least £10 on a set of RCA leads.As for the rev hunting...you need to find the stepper motor (can also be known as an idle control valve, as well as many other things, but they all mean the same thing)Anyway, this needs cleaning with something like brake cleaner, WD-40, GT-85, or something like that, basically you want to shift the crap out of it.I can't tell you exactly where it is on the Megane engine, but seeing as both our cars are French (and seeing as its the logical place to put it) it will be somewhere near throttle body. All it is, is a little motor that controls how much the throttle is held open at idle speeds. On my 306 engine, it is held on by 2 allen screws.An easy way to find it will be to look at the throttle housing, and there will be some kind of electrical plug. If you pull this plug, the engine will start revving higher and higher. Once you find this plug, you have the stepper motor Hope that's some kind of help to you Quote Link to comment Share on other sites More sharing options...
JTM Posted January 12, 2006 Report Share Posted January 12, 2006 What head unit is it?Souds like a really crap earh to me Quote Link to comment Share on other sites More sharing options...
UrbanLegend Posted January 12, 2006 Report Share Posted January 12, 2006 Had exactly the same problem when I had my Megane Coupe. Bought a Ground Loop Isolator, fixed the problem, no worries at all.Here's a link to one: Ground Loop Isolator Quote Link to comment Share on other sites More sharing options...
The enchanted broomstick Posted January 13, 2006 Author Report Share Posted January 13, 2006 Got a ground loop isolator ordered for collection tomorrow morning, will let you know how i get on i asked a few peoples opinions and they reckon it's the best option so im going for that. Thanks UrbanLegend! George, im gonna have a look at that idle valve thingy mcjiggy. I've found a guide on the net of how to completely remove and clean it all etc. Sounds like fun to me - so if my car no longer works after this, im holding you solely responsible cheers, stu Quote Link to comment Share on other sites More sharing options...
chocolatefoot Posted January 13, 2006 Report Share Posted January 13, 2006 sounds stupid but it might b your altenator, due to the magnetic feild, try that if the isolator dnt worktom Quote Link to comment Share on other sites More sharing options...
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