Hondata

A naturally aspirated engine will never make any amount of boost. I you are seeing 14psi without a turbo then you have your units set up incorrectly. Change your pressure unit base unter the units tab of settings.

A naturally aspirated car is taking in atmospheric pressure = 14 psi (1 bar, or 101 ...

If you spliced into A6 then the boost output is connected to both the purge control valve and the boost control solenoid. Unplug the purge valve and see if that helps.

I verified continuity with the purge control valve and the GM BCS - it's connected. I also verified 12v switched to the GM BCS ...

I can't see anything wrong with the setup. At this point I'd have to say that something with your setup (size of wastegate, back pressure, flow through control valve) is giving a non-proportional response to the solenoid duty. It does seem there is a slight difference between 15% and 25%. There's ...

Did you switch the setting from normally open to normally closed? If that was correct, then the next step would be to check the BC valve for flow.
Yes. Changing the plumbing as you suggested along with changing the setting in KManager to normally closed. In both cases (15% duty) it gives roughly ...

When I did not have the BC enabled in KManager (the check box), it made about 7.4 psi - spring pressure. Then I ran it with 0% duty cycle (w/ BC enabled) and I made 20 psi. Just a reminder, at 25% and 45% it made much higher boost.
***Edit*** I selected the minimum duty cycle 15% and max 85%. I did ...

If I swap out ports like you suggested, would I also have to change the settings in KManager?

***Edit***Quick spool disabled. At 15% duty, I make 22 psi. I have a blue Tial 7 lb spring. I took data at 25 and 45% which showed boost drastically going upwards - I got out of it fast enough though.

So ...

Are you sure you have the solenoid connected to the right wastegate port?

Below is a pic of the setup. Port 1 (only port on that side) is connected to a "T" which goes to the turbo and bottom of the Tial Wastegate. The foam port is not connected to anything - atmosphere. The remaining port is ...

2003 S2000
Inline Pro 3mm head gasket
GM Boost Solenoid
Log manifold
KManager 3.2.2.0

Attached are 2 datalogs and the current calibration.

I am trying to figure out the duty cycle so I can boost-by-gear. My understanding is that the GM boost solenoid is normally open so I input a fixed duty cycle ...

Yeah the TPS wasn't consistent when I checked it again. I cleaned the throttle body and cycled it a few times, got consistent readings this time. I also cleaned the IAC while I was at it. I reset it and seems fine at a warm idle now. I'll have to drive it and see what happens in morning traffic.

I ...

Spunkster wrote:Your TPS never drops below 5% except for a split second in a few places. I would start there.

Thanks, I'll look it over again.

2003 AP1 S2000
Hondata Krpo III
KManager 3.2.2.0

I have spent an excessive amount of time trying to figure out my fluctuating idle with no progress. It starts up fine then after warmed up, it starts resonating. I have it set 850 rpms and when it fluctuates, it bounces between 500-1200 rpms till it ...

Looks like it is in bar (PLX does not mention what the raw units are). Conversion factor should be 74.22. We'll update the software for the next release.

If you invert my average conversion number then that is what you get so I agree. I chose to a ratio of DM-6/Kpro, you chose Kpro/DM-6...either ...

jbaker
Can You show your scheme of connection for digital unit?

I made a male 3.5mm jack and connected signal (yellow wire) and ground (black) to the 4 pin connector on the Hondata digital input:

http://i1058.photobucket.com/albums/t404/jaysenbaker/2003%20s2k%20-%20Hondata%20conversion/digital ...

Can you give us a rough conversion between the PLX gauge and KPro (with the settings as fuel pressure)?
eg gauge 30 psi, KPro 1000 psi, gauge 100 psi, KPro 2000 psi etc
This will help us check the conversion calculation.

The following are the oil pressure readings [psi] from the PLX DM-6 and KPro ...

I'll have a rough conversion before the weekend. I should have time to get the data tomorrow.