AXiS & Alky

[ShaunKris]

I was curious if there is anything I need to know and or do when I instal an Alky system on my 84GN hot-air.
Components
-AXiS & Chip
-60lb inj
-Hard Coldair Intake
-LT1 MAF
-86-87 ECU
-AEM Wideband

 

[EricM]

Turn on the alcohol switch inside the Axis box. Then you can start working with how much boost you want to run. Use the WOT dial in the Axis to tune the WOT AFR to around 10.8 AFR give or take. You will likely be able to run more timing also. Just watch for knock.

 

[ShaunKris]

Turn on the alcohol switch inside the Axis box. Then you can start working with how much boost you want to run. Use the WOT dial in the Axis to tune the WOT AFR to around 10.8 AFR give or take. You will likely be able to run more timing also. Just watch for knock.

Awesome! Thanks Eric!

 

[ShaunKris]

Hi Eric, thanks for all your advice so far.
I added some components to the car.
Ta33 w/fully ported intake & bell w/ALKY.
Ported heads and polished exhaust ports, stainless Manley valves stock size. Engine is .030 over with forged pistons.
What would you recommend for a starting tune in timing on my AXiS?
AND would you recommend any other tuning devices?

 

[ShaunKris]

Oh, I deleted my EGR for pretty sakes. Will that affect anything the computer sees? It has your chip in it.

 

[EricM]

I would leave it like you had it before and go from there. How much timing were you running?

It's fine without EGR.

 

[ShaunKris]

I would leave it like you had it before and go from there. How much timing were you running?

It's fine without EGR.

I left the timing as you set it. 17* i think??

 

[EricM]

Yes, 17* is the default. Normally you can run more with alcohol injection, depending on the setup.

 

[ShaunKris]

Yes, 17* is the default. Normally you can run more with alcohol injection, depending on the setup.

Hi Eric, so I just finished the rebuild. #PROJECT84Foria . I'm having some tuning issues that an aftermarket ECU would probably identify. However.. I am using the AXiS. It's really cool and do notice the advantage of it for sure! The thing is I'm getting strange readings as I'm setting it up.
For reference-->
GN—>

Hard Coldair Intake
LT1 MAF 86-87 ECU 60#inj
Axis interface/Chip combo
AlkyControl w/3bar
Boost controller
87 Adj Wastegate actuator
Scanmaster
AEM Wideband sensor/gauge
Fuel pump Hot-Wire kit
Ported iron heads, ported intake, cnc ported bell,
TA33 spec rebuilt turbo
Stock crank/Rods
Forged pistons
Flat tap 264/272 advertised 202/210@.050 112lsa
1.6-1 stockstyl rockers w/.416-.432 lift
NGKUR5 gapped .030

 

[ShaunKris]

 

[ShaunKris]

View attachment 1453 View attachment 1454

The data drive is super rich "8", And popping in the exhaust. I have the AXiS settings backed off.

 

[EricM]

Can you attach the log?

The wideband reading looks strange. Can you describe how its wired and connected to the powerlogger?

 

[ShaunKris]

Can you attach the log?

The wideband reading looks strange. Can you describe how its wired and connected to the powerlogger?

 

[ShaunKris]

Yes I can.

 

[EricM]

It looks like you have a few issues.
First the stock O2 sensor reading is not normal, like maybe the sensor is bad or a wiring issue or ground.
The wideband reading does not look right either. Where you do you have the gauge grounded? Make sure its not grounded to the body, it should be the engine block, or the ECM case will also work.
The IAC is not controlling idle properly. Can you make a log, starting it with key on/engine off, then start the engine for like 10 seconds? I want to see what the TPS and IAC are doing before and after startup.

 

[ShaunKris]

It looks like you have a few issues.
First the stock O2 sensor reading is not normal, like maybe the sensor is bad or a wiring issue or ground.
The wideband reading does not look right either. Where you do you have the gauge grounded? Make sure its not grounded to the body, it should be the engine block, or the ECM case will also work.
The IAC is not controlling idle properly. Can you make a log, starting it with key on/engine off, then start the engine for like 10 seconds? I want to see what the TPS and IAC are doing before and after startup.

Ok

 

[ShaunKris]

here ya go

 

[ShaunKris]

It looks like you have a few issues.
First the stock O2 sensor reading is not normal, like maybe the sensor is bad or a wiring issue or ground.
The wideband reading does not look right either. Where you do you have the gauge grounded? Make sure its not grounded to the body, it should be the engine block, or the ECM case will also work.
The IAC is not controlling idle properly. Can you make a log, starting it with key on/engine off, then start the engine for like 10 seconds? I want to see what the TPS and IAC are doing before and after startup.

W/B is ground to the case.

 

[ShaunKris]

here's another one. I adjusted the IAC screw in about 2 turns. idle raise occured. adjusted TPS back to .42

 

[EricM]

You have the X series wideband I believe, which has 2 grounds, the normal power ground (black), and the O2 ground (brown). Where are each of those going?
Also, the correct wideband setting for the X series is "aem inline" in the powerlogger software.

You battery voltage is low.

I'm not sure on the IAC yet.

I would work on the battery volts and O2 issues to start with.