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History of MembersPage/GergelyLezsak/StageOne
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2005-07-07 15:24:22 . . . . MembersPage/GergelyLezsak [restructure]
2005-07-04 13:26:18 . . . . MembersPage/GergelyLezsak [Progress, pic, etc]
2005-07-03 22:52:56 . . . . BengtR [M20B25 engine, 60-2 pulse wheel information added.]
2005-07-03 07:09:14 . . . . MembersPage/GergelyLezsak [progress]
2005-06-29 13:41:13 . . . . MembersPage/GergelyLezsak [progress and questions]
2005-06-26 10:16:06 . . . . MembersPage/GergelyLezsak [new page, entering stage 1]

Changes by last author:

Added:
Progress

2005.07.04.

Marcell prepared an experimental 3.1 board, I had the harness already in car. We put things together and all the sensor values were fine. Started the car with motronic control, GenBoard just watching, everything still fine. Some calculations to inj timing and GenBoard started the car for the first attempt! (Ignition and IAC still to motronic). Some shot of installation: [1], [2], [3], [4]

Took a ride with car was running on GenBoard 3.1. With VE learning and EGO correction car was running at least as smooth as on its motronic (no mapping yet!). By time things went wrong. Lambda was juming up and down, car was shaking, and we couldn't map any usable values, after one and a half hour it was hard to drive the car at all. When the laptop's accu became empty and we arranged some cables Marcell felt some burning smell. Bangg, we fried GenBoard, surface of TPIC was melted. Marcell knew the cause for the first time what I didn't : ALL THE GROUNDS HAS TO BE CONNECTED ON ECONOSEAL. We have a new victim of disconnected grounds now. Wired back motronic to drive home.

Guess there's no use of running on motronic's ignition since it doesn't have a turbo map either. I may going to Stage 2 for the next attempt.

----

Changed:
* for 3-pole AMP connectors I've found two types, [Code I] and [Code II]. They are not interchangeable.

* for 2-pole AMP connectors I've seen Code I only.

* for 3-pin AMP connectors I've found two types, [Code I] and [Code II]. They are not interchangeable.

* for 2-pin AMP connectors I've seen Code I only.

Changed:
One small issue : there's a [3 pole connector] from main motronic conn. to instrument panel which is vital to work. It contains instrument panel signal (fuel consumption gauge), tacho signal, and ignition switch signal (to motronic!). I had connected ign.sw. signal, car is now running with motronic in engine bay.
Had a small issue : there's a [3 pin connector] from main motronic conn. to instrument panel which is vital to work. It contains instrument panel signal (fuel consumption gauge), tacho signal, and ignition switch signal (to motronic!). I had connected ign.sw. signal, car is now running with motronic in engine bay.
Deleted:
Wiring is almost done.
Changed:
* WBO2 had to be installed to exhaust. Done

* EGT has to be installed to exhaust. (Maybe later)

* Split pressure hose to [ map sensor]. Done.

* WBO2 had to be installed to exhaust.

* TPS potentiometer installed. See MembersPage/GergelyLezsak/TPS

* Split pressure hose to [ map sensor].

* NTC installed as IAT in throttle body. See MembersPage/GergelyLezsak/TPS and [IAT]

* EGT has to be installed to exhaust. (Maybe later)

Changed:
* Need to split VR signal -maybe with a series cond to catch from motronic's in-port directly?

* Maybe motronic will be offended at disconnected sensor and inj. cables. We may need to simulate something? (I don't care about "check engine lights" or something, but it must work for ignition, idle air, etc.)

* Needed to split VR signal - with a series cond to catch from motronic's in-port directly. Working fine.
Deleted:
----

Software'

Don't know much about it.

* For ignition I need to know 60-2 wheel's trigger position relative to TDC. Don't know it yet.

Crankshaft angular speed/position ie. VR Sensor -> 60-2 wheel info...

Measured data:

60-2 wheel diameter 215 mm, tooth width 4.5 mm, space between adjacent tooths 7 mm.

Sensor / TDC position is 165 mm from 1st teeth rising edge.

TDC is 15nth teeth falling edge = approximately 88 degrees after 1st teeth rising edge.

Same mathematically...

diam 215 mm x pi -> 675.44 mm

675.44 mm / 360 degrees = 1.876229 mm/deg.

165 mm / 1.876229 mm/deg = 87.94 degrees.

or

15 x 4.5 mm + 14 x 7 mm = 67.5 mm + 98 mm = 165.5 mm

165.5 mm / 1.876229 mm/deg = 88.2 degrees.

Deleted:
TDC = 88 degrees after 1st tooth rising edge.