idel problem, idel problem on 3sfe Options

[huddy_uk]

hi i am new to this i got this web site from a friend and he said that you lot helped him out

i have a problem just fitted a new engine and the car and the problem is it idel at 2000rpm and after it is worm gose between 500rpm and 2000 rpm on its own ever 7 sec i dont understand why and how to stop this help please
it is the 3sfe engine what is in the car and the same as what came out of the car.

[Bigmeanbulldog55]

Check your coolent level. If it's low, it will slosh around and only hit the thermostat every now and then. When it does this, it's causes the idiol to go up and down. It goes up until enough fluid is pasted over the thermostat, then down because it knows it's hot enough, then up because the fluid stops passing over it. I hope I explained that right.
There are other reasons for it too. Mine is doing this a little. Goes from 1200-1800. I idol high most of the time. It only does this when it's really cold outside, so I've yet to figure it out. I don't care to much about it though, because it's so rare.

[huddy_uk]

thanks i will have a look to see if its that. and let you know what happens later on tonight.
it just hard to find any one in the uk who will touch an inport no one has got the tools to have a loot at the ecu. one bloke i went to see said it was my cluch slipping i asked other people and they said thats not the case. but the dont know what it is. so any other information is helpful because it looks like i have to do this on my own. thank you.

[huddy_uk]

hi i had a look at the level it was alittle low but not no bad i added more so that it is about 10mm from the max line and it has stopped the rev from going up and down but i is still sitting a 2000 rpm on idel any one got any other ideas what it could be { help }

[Bigmeanbulldog55]

Check your vacum lines, and check the little pump thing that holds your throttle open sometimes. You'll see it by the throttle cable. In a lot of cases, it's a worn out, or plugged vacum line. Those are a pain to find. You just start the motor and start pulling lines off and replacing them until the rpm doesn't change or goes down.

[huddy_uk]

i had a look at all the vac hoses and they are all ok i cant find any leaks on them what so evey. i did a test on the IAC valve with a ohmmeter and it was a bit to high so i got a new one tested that befor putting it on and the reading where perfect. put it on but still no different still sitting at 2000 rpm im thinking off changing all of the IAC valve because i only change the the magnet thing. how do you just change the idel speed or cant you.

This post has been edited by huddy_uk: Feb 3, 2007 - 8:53 AM