MembersPage/VdBVolvo (2006-11-14 13:23:43)

Installing Vems3.3 on a Volvo 244 with a B21ET engine. Taken out the dreadful K-jetronic to get complete control. This car should be competing this year in the Benelux Driftseries.

My name is Jochen aka Brickdrifter and I'm living in Belgium.

Current setup:

B21ET

Garret T3.60/.63 trim turbo

XS Power intercooler

36-1 trigger wheel with Ford VR sensor

IAT sensor from webshop

Volvo 960 TPS sensor

1.0.45 Firmware

Megatune, no LCD :-)

Raised idle with solenoid

Vems Serial nr.: 547 controls:

- injection (2banks)

- ignition

img86538ys.jpg


12-11-06

For MembersPage/PhatBob: http://www.vems.hu/files/VdBVolvo/DRValues.txt

I need more info how to change te value to get 305 to 307 as stated in the MembersPage/PhatBob/UserGuide. More specific, I do not understand this: Starting value is Manmttg99c0F To increase the intergrator time constant reduce the number OE to 00, and vice versa to decrease 10 to 1F.

MembersPage/PhatBob - We're currently testing a new release that has the knock control code properly implemented. As for the different values on the LCD... I have no idea at all :(

Also, can somebody tell us all what all the data means on the different pages? For example I know now that the D en R values have something to do with Noise level from the knocksensor but what is all the rest beside the obvious as Dwell and Adv. This is of interested for everybody, is it not?

I have another problem: I've conected the original tach as on the bottem of http://www.megamanual.com/ms2/EDIS.htm. Tach works ok till 2800 rpm. Then it just falls down to 0. Could this be due to low dwell time?

07-11-06

I've connected signal wire to EC18-pin3 and ground to EC18-pin2.

I don't get ANY reading on Megatune. Tried advancing ignition, spanner on block or even loose sensor and hitting that with a spanner. I'm wondering if the connection is right.

03-11-06

Is there someone who can make some sense out of this knocksensor recording? I would like to know the knock frequency. :-)

http://www.driftingforlife.com/images/picsjustforme/Mexicanfreqsearch2.wav


All well so far. Then I changed ign_crank_advance to 15° and the timing light showed 24°. What am I doing wrong?

The most likely problem might be the timing-light: with wasted spark it will have a wrong idea of RPM and angles. It is theoretically possible to compensate (nontrivial calculations easy to get wrong), but best to

  • use a cheap timing-light that flashes at the time of the spark, without offset
  • if you have a fancy timinglight, use it in a mode where it flashes at the time of the spark, without offset
  • If you only have a TDC mark on the engine, note that you can quickly change advance to 0 degrees for testing, just apply a bit more throttle and issue command "mda01", engine will run much slower and manifold etc gets very hot in the long run. After finishing, mda00 returns to normal state. //Emil
Thanks to all for the help.

Primary trigger settings - mine differ to yours:

Mine:\nÿ1ÿ

You seem to have:

trigger_tooth=00 and another_trigger_tooth=12

tooth_wheel_twidth2=0A and reset eng phase...

It might be worth patching your settings with these and setting up again.

//PhatBob

22-10-06: Tried but no difference. With this setup the engine only runs ok with ign_tdcdelay set in MegaTune to approx. 60° with the whole ign map set to 15°.

Again, I triple checked that the engine is in TDC when the mark says so and timing light shows zero when crank-advance is 0.

//VdBVolvo


CONFIG AND TABLES

Misc1out is used for waterinjection solenoid

http://www.driftingforlife.com/images/picsjustforme/config.txt

http://www.driftingforlife.com/images/picsjustforme/tables.txt