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  1. Hi I have a 2016 ZRE182R Corolla Hatch CVT Auto. I have an issue that is doing my head in but not sure if it is just me or if it is normal. Firstly I've never had a CVT auto before so I realise they are a different to a normal auto. Secondly I'm a bit of a conservative driver so I don't drive it like I stole it. The problem is that I've noticed there is a distinct vibration which seems to be from the front of the car. It seems to occur mostly when the rpm's are in the low range of between 1000-1300 rpm. It is not overly bad it is more like a drone noise sort of like the sound of deep base tone that you get from your stereo (if that makes sense?). In fact as I usually have my car stereo on I thought the noise was coming from my speakers at first but it's not. If I tap on the accelerator pedal to give it a few more rpms it goes away but as soon as the revs lower to around 1000 or just above the droning/vibration continues. Even at around 100km/h at just over 2000 rpm I can hear it. The car has 18,000km on the clock. Now that I am noticing it more it is becoming more annoying and I've even considered trading it in for a manual. Although the good points I have noted with the car is I'm getting 5.8L per 100km which is outstanding. Anyway not having owned a CVT before I am wondering if this is normal or could it even be another problem not related to the CVT? If it is not normal of course I would be worried that it might develop in to something major and costly down the track and would rather get it sorted sooner rather than later. Thanks in advance guys and girls :)
  2. Hey guys,Just a brief history, car ran fine previous to replacing pipe and 'cleaning' intake. Spark plugs, leads, cap, rotor, fuel filter, oil filter, air filter have been changed within the last 6 months.I recently replaced the intake pipe on my 92 Tarago, and at the same time I sprayed some Nulon foaming intake cleaner into the intake to try and clean the throttle plate as well as into the intake itself.After changing the pipe and putting everything back together it was a bit difficult to start. Which I assumed was just the intake cleaner.However, the next morning it would not start on its own even after 10 seconds of cranking. If you gave it a bit of throttle it will start but die immediately after you release the throttle. If you hold the revs up a bit till it warms up it will idle but at a very low RPM about 550rpm. After it is warm or even slightly warm it will start up right up and idle where it should be about 800rpm but if it's just barely warm it will idle at 550-600rpm. Normally on a cold start it will idle at about 1100rpm for a bit until it warms up.Driveability when warm is same as before smooth and strong. Only issue when warm is engine won't idle up for power loads (ie headlights), or A/C.Long story short I took off the IAC cleaned it and checked functionality, gasket could be replaced but still 3 weeks away so used silicone for the time being. TPS tested within spec. During this time I believe I found maybe the only/one of the first issues. The IDL wire had gone open between the TPS and ECU so the ECU didn't know when to open to close the IAC. Ran a new wire and tested all TPS values on the ECU connector side and all was within spec. Now I can hear the IAC activate when the A/C is switched on but the revs drop way too low when the actual compressor kicks in. Somewhere in between there I fiddled with the big idle adjustment screw on the TB.TL;DR*Replaced cracked Intake pipe/sprayed nulon foaming intake cleaner into intake with TB wide open.*Car no longer starts when cold unless given throttle to warm up.*Car no longer fast idles (1100rpm)when cold.*Car no longer idles up for A/C or power draw.*Warm driveability is unaffected. *Found open in TPS wiring on IDL line. Wire has been replaced.*TPS wiring checks out fine on ECU connector side.*Replaced IAC with wrecker IAC from a 93.*Replaced TB gasket.*IAC now activates (audible click when A/C switched on) but does not idle up, and revs still drop too low.*Issue still present. Let me know what you guys think.