hey i just did the heater core its all together but it idles high and the idle drops then rises. i didnt cut any wires except the ones that go to the door on the driver side. i connected all the conectors but what could cause it to do this any ideas help is needed asap

 

sounds like a vacume leak...

 

i didnt touch anything under the hood. is there any wires that go in the car that control the engine? and how bout the steering wheel any of those wires do anything? and my wipes wont turn off. what the heck maybe the wiper arm got broke when i put dash back any ideas

 

pretty sure the ecu controls engine idle. the vacuum lines going to the tb are kinda brittle - especially the thinnest one. mine broke while I wasnt even under the hood. my idle started acting like yours is. some heat shrink fixed it pretty well. get a cel (check engine light)? with a vacuum leak you might not get a light until after you drive the car a bit.

 

vaccum leak ...had the same problem when i first got my car

 

the harness going to the engine had 3 wires rubed and where touching making my iac motor go crazy. i new this how is i took a nut driver and held it over the hole where the air coms in and i made it idle fine by controling the air past the nut driver. so i played around with the wires and it started idling.

Any one have used engine harness for sale. i want to custum ize one for a mega squirt.