MembersPage/KoabiBrooks (2006-10-17 10:39:24)

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051224sciroccoengine.jpg

I have an '88 Volkswagen Scirocco

My goals

Car Specs


VEMS SETUP

I am going with v3.3 assembled. Here is the current plans, which are subject to many, many changes.

Components

Ignition and Injection Setup


Rewiring after killing an injector wire due to poor wiring

The ECU (which apparently is a v3.2 board has this mod using 0 ohm connections):

genboard32AREF.JPG

WBO2 calibration

I am only able to get 15.7 o2% for free air calirbation on mlp02 with mde02 on to turn on WBO2. WBo2 is connected, heater is on, car is NOT running.

This is most likely OK if you have the sensor in the exhaust. For free air calibration the sensor must be removed from exhaust. If you don't want to remove sensor (hard to access, etc),

outputs after 2 min warmup time via mde02

mlp00mll

RPM:0000 T 13 P099

La:15.7 egoC:-00

clt: 21C tps:00%

0762 egt:0000adv:+06

mlp02mll

RPM:0000 W00I00 P099

10EC E4, 1081 A6 P

00 ED 00 00 3FC0

AFR=? O2%=15.7

mlp07mll

Ri:0F81 Nernst:1087

Heat:60 Pump:A6

AFR=? 15.7

AFR=15.50 PF ON

IMPORTANT: "pin" below means WBO2 pin

What I find odd (but I can't totally confirm) is I think the calirbation used to be closer to 20.9 (this is O2%, not AFR) when i last did this a couple of months ago. My calibration was never perfect, though.

The configs below are current (looks sane).

Correct


Useful Resources

Crank wheel trigger generator: http://www.starshadow.com/~koabi/carstuff/cranktriggers.php

GrmRacer's install guide (note injector flyback is accidentally omitted from the pinout): http://www.starshadow.com/~koabi/carstuff/VEMS/Information%20to%20setup%20your%20VEMSv3.htm


Comments

Updated firmware to 1.0.53

what a 17 psi spike?! no wonder 1st gear had no traction.

Problems below have been resolved:

config: http://www.starshadow.com/~koabi/carstuff/VEMS/configs/20060926config.txt

tables: http://www.starshadow.com/~koabi/carstuff/VEMS/configs/20060926tables.txt

MT MSQ: http://www.starshadow.com/~koabi/carstuff/VEMS/configs/megasquirt200609262023.msq

log: http://www.starshadow.com/~koabi/carstuff/VEMS/logs/datalog200609262006.xls