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-   -   Microtech Aux or secondary injectors? (https://www.rx7club.com/microtech-111/aux-secondary-injectors-1110650/)

Dave.Martin2008 02-15-17 06:03 PM

Aux or secondary injectors?
 
I used a base tune set up on my 6 port turbo setup. 2nd gen primary injectors and 3rd gen secondary injectors with a 3rd gen intake with adaptor plate. my issue now is that when I WOT the engine goes super lean and stalls out. I have noticed that the Aux Inj. on the laptop running the LT10S doesn't show the Aux Inj. spraying. I am looking for some help to tune it so that kick in when I go WOT. it seams to be getting too much air and the 550CC 2nd gen injectors wont keep up with the sudden mas air flow into the intake... any thoughts.. this is what I have for ECU mapping ATM.

Idle Map
Screen 1

30" ~ 1.38
25" ~ 1.48
20" ~ 1.33
15" ~ 1.71
10" ~ 1.71
05" ~ 1.62
00" ~ 2.00
2-20psi ~ 4.95

Load Map
Screen 3

30" ~ 0.95
25" ~ 1.19
20" ~ 1.33
15" ~ 1.71
10" ~ 2.14
05" ~ 2.57
00" ~ 2.86
2psi ~ 2.2
4psi ~ 3.05
6psi ~ 3.7
8psi ~ 4.1
10psi ~ 4.7
14psi ~ 5.2
16psi ~ 5.6
18psi ~ 5.8
20psi ~ 6.2

RPMwot Map Screen 17

5000 ~ 05
5500 ~ 08
6000 ~ 08
6500 ~ 10
7000 ~ 11
7500 ~ 11
8000 ~ 11
9000 ~ 12

The rest are zero

RPMcrs Screen 18

1000 ~ -12
1500 ~ -11
2000 ~ -12

THe rest are zero



Pump Map
Screen 19

Pump2Start ~ 2000
Pump1Amt ~ 00
Pump1Pulse ~ 04
Pump1Trig ~ 18
Pump1Stop ~ 00
Pump1Adv ~ 05

Pump2Time ~ 10
Pump2Amt ~ 30
Pump2Trig ~ 16
Pump2Stop ~ 00
Pump2Adv ~ 05

PumpDwell ~ 3.00
PumpTimers ~ No
Pump1Sync ~ No
PumpSpare ~ 00
PumpCold ~ 00

Water Map
Screen 20

-25 ~ 0
-17 ~ 70
-9 ~ 60
-01 ~ 50
05 ~ 45
11 ~ 45
18 ~ 42
24 ~ 34
31 ~ 26
38 ~ 24
46 ~ 19
60 ~ 12
68 ~ 06
82 ~ 0
99 ~ 0
124 ~ 0

Air_t Map
Screen 21

-25 ~ 0
-17 ~ 8
-9 ~ 6
-1 ~ 5
5 ~ 4
11 ~ 3
18 ~ 3
24 ~ 0
31 ~ 0
38 ~ 0
46 ~ 0
60 ~ 0
68 ~ 0
82 ~ 0
99 ~ 0
124 ~ 0

Crank Map
Screen 22

-25 ~ 72
-17 ~ 72
-9 ~ 72
-1 ~ 67
5 ~ 62
11 ~ 57
18 ~ 50
24 ~ 41
31 ~ 31
38 ~ 26
46 ~ 20
60 ~ 15
68 ~ 5
82 ~ 0
99 ~ 0
124 ~ 0

t*rpm
Screen 23

Idle ~ 20
1000 ~ 20
1500 ~ 20
2000 ~ 20
2500 ~ 25
3000 ~ 25
3500 ~ 25
4000 ~ 25
4500 ~ 25
5000 ~ 25
5500 ~ 25
6000 ~ 25
6500 ~ 25
7000 ~ 25
7500 ~ ??
8000 ~ 25
9000 ~ 25

t*map Map
Screen 24

Idle ~ 00
25 ~ 05
20 ~ 04
15 ~ 03
10 ~ 02
05 ~ 00
00 ~ 00
2psi ~ 00
4psi ~ 00
6psi ~ 02
8psi ~ -04
10psi ~ -06
14psi ~ -10
16psi ~ -12
18 psi ~ -16
20 psi ~ -20

t*air Screen 25
Correction value Is expressed as number of degrees you wish to advance or Retard to the Ignition curve and values Is set at zero.

t*gap
Screen 26

0500 ~ 15
1000 ~ 15
1500 ~ 15
2000 ~ 14
2500 ~ 12
3000 ~ 10
3500 ~ 10
4000 ~ 10
4500 ~ 10
5000 ~ 10
5500 ~ 10
6000 ~ 10
6500 ~ 10
7000 ~ 10
8000 ~ 10

t*Inj Map
Screen 27

0500 ~ 120
1000 ~ 150
1500 ~ 150
2000 ~ 150
2500 ~ 150
3000 ~ 150
3500 ~ 150
4000 ~ 150
4500 ~ 180
5000 ~ 210
5500 ~ 210
6000 ~ 240
6500 ~ 240
7000 ~ 270
8000 ~ 270
9000 ~ 270

t*wat Map Screen 28


ANd the rest are zero

Option Map
Screen 30

Af_StE ~ 10
Dwell ~ 3.25 *set at Time Base - not at Duty Cycle*
REVstg ~ 1320
MAPstg ~ 02"
%stg ~ 50

rx3sum 02-17-17 05:34 PM

Do you plan on getting it dyno tuned?
I personally wouldnt use that map as it has a few problems and is very lean.
Save your current map.Load in the entire base map stickied at the top of the thread.Its for 4 550s so will run fine on the primaries but will be too rich when the secondaries stage.
Then the car can be driven to dyno or if your more diy and will tune yourself you need a wideband.
Aux injection is not used on standard 4 injector setup.

Aaron Cake 02-19-17 10:23 AM

Unless you have the microfueller option fitted, the aux injector won't do anything.

Switch the ECU to matrix mode as a first step.

Then start with the numbers on the base map as mentioned.

Richen up all the boost areas to the point where the car barely runs.

Then slowly remove fuel, a cell at a time, until the car pulls at a safe ratio.


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