| lildoo | 04-02-2015 10:52 AM |
01 Civic D17A2 idles at 3500 RPM
I'm new here, but I'm sure I'll be around for a while. I've always been a huge Honda fan as I've owned several V6 Accord coupes, but this is my first Civic. The car was set up for turbo before it became mine, the previous owner took the turbo off and destroyed the wiring harness and took the ECM with him. I replaced the wiring harness with one from an 02 automatic (I was told it wouldn't make a difference and to just leave the D connector unplugged) and ordered a new ECM. Last week I had the car flashed and it fired up immediately without problem, but to my dismay it idles at 3500 rpm with a surging lope. I disconnected the IAC and cleaned it, nothing changed. Took the battery terminals and hooked them together for 20 mins then fired it up without the IAC installed. It idled down to 1700, but was even more erattic with surging. I connected the IAC back up and it went back to 3500 rpms. Does this mean the IAC is shot? All of this can sound dumb to an experienced mechanic but it's new to me so pleae excuse my ignorance on the subjext as I am learning. All help is severely appreciated | 