Location: Reedsburg, WI
Posts: 4,026
My VIN: 5180
Club(s): (DMWC) (DCUK)
DENNIS
VIN 5180, Frame 3652, STAGE II, DM-eng Solid State Solutions (RPM Rly, Dm.Lt.Mod., Fan Fail Mod. , FAN Rly, HS.Rly) , HID headlights, SPAX user since 2009, Eibach springs, M Adj. Rear LCA's, DPNW poly-sway bar kit, DMCEU LCA Stabilizer link kit, DMCMW Illuminated door sills, Aussie Illuminated SS Shifter plate, REAL MOMO EVO Steering wheel, DELOREANA Extended View Side Mirrors w/ Heaters, DELOREANA LED Door Lights.
Posts: 88
My VIN: 2729
The stock idle ECU does not ever close the valve (idle motor) all the way. When I had the stock ECU it closed a little more than in your photo. But all that means is you have a little less control for holding the 775 RPM on a hot engine.
Dave M vin 03572
http://dm-eng.weebly.com/
Posts: 88
My VIN: 2729
A video is probably better:
https://drive.google.com/file/d/0B2N...ew?usp=sharing
Posts: 88
My VIN: 2729
Yes, I still sell them. My ECU will close the valve completely if needed. That was one of the things I did not like about the stock unit and my car would idle at 1000 RPM when hot. But that turned out to be bad deceleration springs on the butter fly valves.
Here is a video I did when I designed my ECU.
https://www.youtube.com/watch?v=8YE_HG4ji8E
Last edited by Bitsyncmaster; 07-30-2017 at 03:24 PM.
Dave M vin 03572
http://dm-eng.weebly.com/
Posts: 88
My VIN: 2729
Posts: 88
My VIN: 2729
I took the car for a 10 minute drive and when I got back I let it idle to see what wolud happen. After a few minutes it stumbled itself to death and I was greeted with this:
https://drive.google.com/file/d/0B2N...ew?usp=sharing
I'm not sure what to make of it.
Location: Reedsburg, WI
Posts: 4,026
My VIN: 5180
Club(s): (DMWC) (DCUK)
what did the smoke smell like? How much resistance was their when you first pushed down on the air plate? Pushing down that far would dumped fuel into the hot heads and any valve that was open. It could have just been fuel boiling off. or oil residue in the intake from crankcase venting. worst case would be coolant vapor steaming off. It just depends on what smell like as to what it might be.
DENNIS
VIN 5180, Frame 3652, STAGE II, DM-eng Solid State Solutions (RPM Rly, Dm.Lt.Mod., Fan Fail Mod. , FAN Rly, HS.Rly) , HID headlights, SPAX user since 2009, Eibach springs, M Adj. Rear LCA's, DPNW poly-sway bar kit, DMCEU LCA Stabilizer link kit, DMCMW Illuminated door sills, Aussie Illuminated SS Shifter plate, REAL MOMO EVO Steering wheel, DELOREANA Extended View Side Mirrors w/ Heaters, DELOREANA LED Door Lights.
With it stumbling to a stop, you probably have miss fires and some of the intake valves are open. So I would think that "smoke" is unburned fuel.
Dave M vin 03572
http://dm-eng.weebly.com/