My car accelerate by it self !!!!
#11
Get the dongle and an app like Torque. Setup a connection and select the parameters:
- long term fuel trim bank 1
- short term fuel trim bank 1
- long term fuel trim bank 2
- short term fuel trim bank 2
Run the engine idle, note the values. Rev up to 2,5k and note the values. Post here
- long term fuel trim bank 1
- short term fuel trim bank 1
- long term fuel trim bank 2
- short term fuel trim bank 2
Run the engine idle, note the values. Rev up to 2,5k and note the values. Post here
#13
...or a vacuum leak. I've been starting the engine with disconnected hoses on the upper intake, it immediately revs up. But it should throw the code. Maybe it does, but the light isn't working. That's why I believe a good point to start is to check the trims.
#14
yes exactly this what I notice when I drive >>> ((run at high idle until warming up)))
#15
Too bad that IAC does not sent a feedback to ECU, so You can't lookup the value. It has 4 pins and consist of two coils. You can measure the coil resistance. Each pair should give around few Ohms (sorry, I don't remember an exact value).
#16
Second two pins 0 ohams
and it has 3 pins not 4 pins
thank you
#17
- one common line
- drive up coil
- drive down coil
45 Ohms is fine for a coil resistance, but zero Ohms isn't. For me it looks like one of Your IAC coil is shorted, therefore the IAC motion is one direction only: it opens but cannot shut.
You may post the wiring diagram if You find any, but also checking the resistance of an IAC at a supplier's is a good option too.