OK, I have my DOHC swap up and running and now I want to see what's going on. How? I've never used any scanning software like Win ALDL before, so what do I need? I have seen 4 or 5 different ways to build a cable, and I am confused.

I have a 91-93 3.4 DOHC running the 91-93 OBD1 ECM. What else do I need? What do I do with it? Can I look at sensor data and see things like coolant temp, RPM, oil pressure, etc. ?

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1986 SE Aero coupe. 3.4 DOHC swap is underway!

Lunch bump

I don't know much about it but found this:

http://www.aldlcable.com/

Pm dodgerunner he makes aldl cables. He might also point you in the right direction for the snwers you seek.

1227730?

1) Get a laptop with either a serial port or a usb port

-If serial, you can buy or construct a 2 transistor cable which will connect the computer to the aldl datastream
-if usb, I think buy far the way to go is to buy a cable

Look here:

http://www.aldlcable.com/sc/pages.asp?pageid=24

2)Download Tunerpro RT, install

3) Find out what code you are running, ($8F, $59 etc). There is a good list of applications in the link on 4)

4) Get the .ADS file (This defines the ecm data stream so tunerpro can interpret the info correctly). Try here:

http://www.tunerpro.net/downloadBinDefs.htm

You can also get the .xdf file if you want. This and a bin file are required if you want to do tuning. If not, then you don't need them, just the ads I think. The xdf is usually available as well, so do them both. In tunerpro, load them up:

xdf: xdf menu/select xdf

ads: aquisition menu/import definition/from ads

cennect up your cable, turn on the engine, and aquisition/start stop data scan, and the bar at the bottom should go green and show connected, then you can ope up the dash, do some logging, whatever you want.


Chay

[This message has been edited by Slowbuild (edited 06-14-2012).]

Dodgerunners ALDL cable only works on 160 baud pin E unidirectional data. No btw, you can't just wire your ECM's data to pin E and use his cable. (edit - at least that is what I believe - and no knock to Dodgerunner's cable - It is just that he is using the circuitry that works with the 160 baud pin E Fiero ECM.)

ALDLcable.com and MY ALDL ( http://reddevilriver.com/aldl.html ) cable will work on both Pin E and the bidirectional 8192 bidirectional Pin M data that your ECM puts out.

My ALDL cable however is less expensive than ALDLcable.com

The two transistor circuit on ALDLcable.com will work for you if you have a onboard serial port. People have troubles however with serial to USB adapters when using the serial cable. Some do work however some do not.

Here are some videos on how the cable works.

http://www.youtube.com/play...C45&feature=view_all

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The .xdf definition for your ECM is only needed if you want to read/modify/burn the PROM in the ECM. It is not used at all when you are just monitoring the ECM's diagnostic output port.

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You can see all the inputs to the ECM

Battery Voltage
RPM
MPH
CTS - Coolant Temperature Sensor
IAT - Intake Air Temp
MAP - Manifold Absolute Pressure
MAF - Mas Air Flow - If your engine has a MAF sensor
TPS - Throttle Position Sensor

And you will be able to see the outputs of your ECM

IAC - The step the Idle Air Control (motorized valve) is set at
IPW - Injector Pulse Width
Ignition Advance - How much ignition advance your ECM is adding to the engine

HOWEVER
The oil pressure is not an input to the ECM so no you can't see it on the laptop.

[This message has been edited by phonedawgz (edited 06-14-2012).]

Forgot his didnt work with 7730. But hey i did change my fiero over to dis. But im still using the cable for my T.A. found out last night the cts isnt even giving the car any readings.