MS2E, Added Turbo, Idle very erratic
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I had my car running really well with my MS2E on an NA motor, the tune was great. I added a turbo, and now the idle is awful. It bogs and jumps and sputters and then dies completely.
The really weird thing is that sometimes it'll idle really, really well for a good 10-15s and then it'll go back to being a stupid-head. It was also pig rich at idle, but I attributed that to my BOV leaking at idle, so I unplugged the vac source from the BOV and leaned out the VE cells at idle like 2 points or so. I know adding a turbo complicates things, but I was under the impression that my idle really shouldn't change all THAT much. And I have no idea what would be causing it to be so erratic. I'm going to troubleshoot a bit today. Make sure my map signal line is good (it got unhooked and re-hooked up in the process), maybe try throwing the old intake back on right at the intake manifold and see if that changes anything, etc.. Here's my current tune and a log of it being erratic. I see my MAP is bouncy, but I'm not sure if that's a CAUSE or an EFFECT of the RPM being bouncy.. :( |
Well, I also relocated my ECU to my glovebox (kept kicking it under the dash, which is no bueno probably lol) and I just un-re-located it and it works great.
Not sure if the problem was the longer MAP vacuum line, or if it was the DB37 extension cables I used, but either way, when I moved it back the issue resolved itsself. I'll probably test just to see which was causing the problem--but I think at the end of the day I'm just going to keep the ECU under the dash and try to mount it a bit higher up or something so it doesn't give me issues. I was fine in my prototipos, but the lady friend and I took it on a date and my dress shoes were too long. :( |
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