Joined
·
116 Posts
I am in all over the internet to find a clue...Please, I need some brain storming...
When the car starts, idle jumps to 2K rpm, slowly goes down to 1K rpm and it stays there. While in park, when you give some gas, idle goes up to like 1500 rpm and HANGS there for 5 seconds and then starts going down.
There is no drivability issue, car idles very smooth in drive and traffic, it has nice pick up power, pedal is responsive.
I already changed IAC. TB and upper intake manifold is very clean. A month ago, I cleaned TB, MAF and IAC. Also attempted to pull EGR out, I was able to get two bolts out but the bottom nut didn't come out so I put everything back. Since then I had this issue.
I checked out visible vacum lines, seem like fine and ther is no hissing sound from anywhere in engine.
Appears to be car is getting much more air in park for some reason, it idles like Mustang in park, in drive it idles like MB...
Please help
When the car starts, idle jumps to 2K rpm, slowly goes down to 1K rpm and it stays there. While in park, when you give some gas, idle goes up to like 1500 rpm and HANGS there for 5 seconds and then starts going down.
There is no drivability issue, car idles very smooth in drive and traffic, it has nice pick up power, pedal is responsive.
I already changed IAC. TB and upper intake manifold is very clean. A month ago, I cleaned TB, MAF and IAC. Also attempted to pull EGR out, I was able to get two bolts out but the bottom nut didn't come out so I put everything back. Since then I had this issue.
I checked out visible vacum lines, seem like fine and ther is no hissing sound from anywhere in engine.
Appears to be car is getting much more air in park for some reason, it idles like Mustang in park, in drive it idles like MB...
Please help