it is runing and I drove it around!!! July 29
MembersPage/KeithHargrove/AlfaMilano/TunePage
for how I tuned the car very fast and simmple
Q: I do not seem to be able to get the PWM for the idle to change with RPM
I played with all the seting and I can change how much it is open by changing Max steps to extend. but it seem to stick where ever I set that to
the speed/PWM seem to need to be 0 or 1 if I set the number larger that valve pops open close very fast(likly to damage)
the rest of the setting seem to have no affect. except for TPS threshold that tells it when to turn on.
if I set the Max steps so the valve is open 1/2 and change the RPM up/dowm past ether the cold or the hot idle seting the valve dose not move at all.
I also tested with ignition basted idle on and off
I also tested with Asymmettic PID on and off
this is with 1.0.45 FW
Some notes about the valve. This is a motronic valve
- if there is no power at all going to it it looks to have a limp mode where it is part open.
- as you start to give it voltage it will close
- are you sure about this ? it means the valve is non monotonous actuator, which is strange.
as you add voltage the window will move and start to close when the window is centered the valve is 100% closed. Then as the voltage in increased the window will open on the otherside and can keep on going untill 100% open.
- then any more voltage it will start to open again. The more voltage the more open.
min PWM and a max PWM setting are easy, since you can adjust the ("stepper", same as PWM) reference positions in function of CLT. Sufficiently low (05 ?) iac_integral_limit_dec helps you to limit PWM to go much lower than you like (useful anyway).
This is the set up for my 1987 Alfa Milano Verde
others here
also online Workshop Manuals
http://www.users.on.net/~craigf/
Or my
[PDF of pages 43,44 section E ]
see http://www.alfabb.com/bb/forums/showthread.php?t=26315
- block is now a S
- pickup will be VR on a 60-2
- firing order; 1,4,2,5,3,6
- COPS (Coil On Plug)
- cam trigger at some point but not yet
- use 164 intake(cut to fit) with the longer runners tuned to the S cams
- 179.91CID 2.949L
- stock injectors 18LB Hi-Z
- Req_Fuel 17.5ms
I guess I cut that in half 8.75ms
it is 5V so I need re-think this
I changed the coil mosfet resistors to 1K
at Q3 Q6 Q9 Q12 Q16 Q21
jumped gate drive to output.
added diodes out to ground this will clamp any negitive voltage on the outputs
5.1V zeners would be a beter but I did not have any.
Config
MembersPage/KeithHargrove/AlfaMilano/ConFig
COP setup
| The pairs I will use so I can run wasted is | |||||
| L-jet Pin | Wire Color | Transistor | number in setup | ECIII pin | cyl |
| 2,3 | White,Yellow | Q16,Q21 | #0,#1 | pin35,pin33 | 1,5 |
| 18,11 | Purple,White/black | Q6,Q9 | #4,#5 | pin11,pin12 | 4,3 |
| Spark7,part 6 | Purple/white,Green | Q12,Q3 | #6,#7 | pin10,pin24 | 2,6 |
Injection
Using old wires.
I need to look at the car but the diagram out of the online books page E-43
each injectors has a red wire for power via S2 relay looks UNFUSED!!!
To ECU
| L-jet Pin | Wire Color | Injector # | number in setup | ECIII pin |
| pin#31 | Light-blue/yellow | 6 | INJF | pin18 |
| pin#30 | White/red | 5 | INJE | pin9 |
| pin#14 | Light-blue/red | 4 | INJD | pin20 |
| pin#32 | Yellow/black | 3 | INJC | pin8 |
| pin#33 | Orange/white | 2 | INJB | pin19 |
| pin#15 | Green/white | 1 | INJA | pin7 |
TPS
| TPS switch (need to get a motronic pot type) | ||||
| L-jet Pin | Wire Color | Use | number in setup | ECIII pin |
| pin#18 | Purple | common | TPS | pin1 |
| pin#3 | Yellow | WOT | TPS5V | pin28 |
| pin#2 | White | idle | GND | pin26 |
IAC
will use the same pins the powered the heater in the old thermo type
one pin goes to the S2 power fuel pump/O² Orange/black
need to add a flyback diode between the pins.
| L-jet Pin | Wire Color | Use | number in setup | ECIII pin |
| pin#34 | Orange | will be the IAC control | INJG | pin6 |
| N/A | S2 power | N/A | N/A |
S2 Relay enable
it looks like l-jet pin#28 Yellow/red need to go to ground to enable the S2 double relay
Fuel Pump/O² Power Control
l-jet pin#4 Grey/green looks to high while cranking and will power part of S2 fuel pump/O²
| Fuel Pump/O² Power Control | ||||
| L-jet Pin | Wire Color | Use | number in setup | ECIII pin |
| pin#20 | Pink/black | looks to power S2 fuel pump/O² | STEP_A | small#4 |
Fan
| Fan Reley | ||
| Wire Color | Use | ECIII18 pin |
| STEP_C | 5 | |
Tachometer
| Tachometer | ||||
| L-jet Pin | Wire Color | Use | number in setup | ECIII18 pin |
| Spark3 | Green/black | coil also goes to cluster(tach?) | STEP_B | 17 |
WBO²
ground the green coex to gnd
| WBO² | ||||
| L-jet Pin | Wire Color | Use | ECIII18 pin | WBO² pin |
| part 9 | Light-blue/white | PUMP(-) | 7 | 5 |
| 12 | Light-blue/black | PUMP(+) | 9 | 6 |
| 24 | Green coex | NERNST_CELL1 | 13 | 1 |
| part 6 | Green | HEATER1(-) | 18 | 4 |
| N/A | Orange/black | Power | N/A | 3 |
| Power will come from the old wire that went to the NBO² | ||||
Knock
| Knock Use one of the big green coex | |||
| Wire Color | Use | number in setup | ECIII pin |
| Yellow | KNOCK1 | 34 | |
| Shield | Knock gnd | 36 | |
| Black | KNOCK2 | 23 | |
Crank Trigger
| Crank Trigger Use one of the big green coex | |||
| Tie the coex shield only to the VR shield | |||
| Wire Color | Use | number in setup | ECIII pin |
| Yellow | TRIGG1_CONN | 27 | |
| Black | GND | 26 | |
CAM Triger
| CAM Triger use the black coex | |||
| Wire Color | Use | number in setup | ECIII pin |
| 1 | Yellow | TRIGG2_CONN | 13 |
| 8 | Brown/White | GND | 26 |
| 27 | Grey/red | 5V | 27 |
| N/A | Red/black | 12V | N/A |
CLT
| L-jet Pin | Wire Color | Use | number in setup | ECIII pin |
| 13 | Brown | CLT | CLT | 14 |
| N/A | Black | Gnd | Gnd | 26 |
IAT
| L-jet Pin | Wire Color | Use | number in setup | ECIII pin |
| N/A | MAT | 2 | ||
| Gnd | Gnd | 26 |
Serial Port
| Wire Color | Use | number in setup | ECIII18 pin |
| Red | RxD | RxD | 14 |
| Brown | TxD | TxD | 15 |
Power
| Power | ||||
| L-jet Pin | Wire Color | Use | number in setup | ECIII pin |
| pin#20 | Red | power shaired with injectors from S2 | N/A | N/A |
| pin#10 | Red/black | power direct from S2 | +13.8VBATT | 25 |
| Grounds | ||||
| L-jet Pin | Wire Color | Use | number in setup | ECIII pin |
| pin#5 | Black | ground to CLT | GND | 26 |
| pin#16 | Black | power grounds | GND5 | 32 |
| pin#17 | Black | power grounds | GND5 | 21 |
| pin#35 | Black | power grounds | GND5 | 5 |
errors on my part
Q: anyone know why the dwell time jumps like 2x under 1000RPM?
V1.0.45
Bad tooth_wheel setting (see MembersPage/KeithHargrove/AlfaMilano/ConFig ) makes me wonder how it runs at all. Doesn't it show wheel-errors ?
it did on the bench due to a bad matching software wheel with 62-2. but 62 will not divide into 3 so the dwell was all messed up
Now it is much better with the right wheel.
But in megatune the dwell is off by one.
I had to set it to .78 to get a 1.78ms Dwell
found the Dwell problem. the dwell @6V had add 2ms in it and not 0. and I was runing around 12v it ramps. so anything less then 14v will get the some of the 6V added to it the lower the voltage the more is added.