Use and Interrogation of the Diagnostic Connector
#1
Use and Interrogation of the Diagnostic Connector
Does anyone know where I can find a guide ONLINE for this.
supposodly it:
This manual explains the functions and uses of that mysterious black box located near the air filter-the diagnostic connector. The procedures apply equally to most models of Mazda MX5, Miata, and Eunos Roadster 1989>1998. The purpose of this manual is to enable the home mechanic or independent garage to access the self diagnostic facilities of the MX5 which are normally only available to Mazda dealers through the use of their factory provided service tools. Includes a free DIY led probe to get you started!
cheers
supposodly it:
This manual explains the functions and uses of that mysterious black box located near the air filter-the diagnostic connector. The procedures apply equally to most models of Mazda MX5, Miata, and Eunos Roadster 1989>1998. The purpose of this manual is to enable the home mechanic or independent garage to access the self diagnostic facilities of the MX5 which are normally only available to Mazda dealers through the use of their factory provided service tools. Includes a free DIY led probe to get you started!
cheers
#6
sorry but is that what i am supposed to be looking for:
http://www.obdii.com/codes.html
cus that to me is just some random figures.
it does not tell me the procedure.
http://www.obdii.com/codes.html
cus that to me is just some random figures.
it does not tell me the procedure.
#7
no tabs that isnt for your car mate. Ill have a look for the Mk1 codes.
here you go.
http://autorepair.about.com/library/...l-dtcs-25a.htm
here you go.
http://autorepair.about.com/library/...l-dtcs-25a.htm
Last edited by sausages; 12-21-2006 at 05:12 PM. Reason: added a URL
#13
no tabs that isnt for your car mate. Ill have a look for the Mk1 codes.
here you go.
http://autorepair.about.com/library/...l-dtcs-25a.htm
here you go.
http://autorepair.about.com/library/...l-dtcs-25a.htm
FWIW, I removed the diagnostic connector from my '91. You would not believe how much wire is used for that thing (probably not an issue for most of you but I bet it was over 100 feet!).
#14
Here is a pic I found of the AFM wiring (gives you an idea of what is on the diagnostic connector:
http://ww2.lightweightmiata.com:8080...e/rewire11.JPG
http://ww2.lightweightmiata.com:8080...e/rewire11.JPG
#16
UPDATE:
Finally did this today and it threw code: 17.
I am getting Just over 250km from a tank of petrol on mostly stop/start journeys.
O2 Sensor!!!
This is my second 4-wire bosch sensor this year.
I believe the problem lies somewhere else now why it keeps killing the o2 sensor..!!
Any ideas what could be causing the problem?
Water thermosensor?
bad wiring?
Injectors leaking?
Fuel filter clogged?
The use of the Vortech FPR with Emaanage and 1.8 injectors surely cant be causing an excessively rich mixture can it?
The car is also missing...but there is another thread on this!!
Any helpful replies are welcome
Finally did this today and it threw code: 17.
I am getting Just over 250km from a tank of petrol on mostly stop/start journeys.
O2 Sensor!!!
This is my second 4-wire bosch sensor this year.
I believe the problem lies somewhere else now why it keeps killing the o2 sensor..!!
Any ideas what could be causing the problem?
Water thermosensor?
bad wiring?
Injectors leaking?
Fuel filter clogged?
The use of the Vortech FPR with Emaanage and 1.8 injectors surely cant be causing an excessively rich mixture can it?
The car is also missing...but there is another thread on this!!
Any helpful replies are welcome
#17
From what I am told, overly rich conditions will kill an O2 sensor. However, just because you throw an O2 code that doesn't mean the sensor is dead. I regularly get a check engine light on my wife's "very rich for a few more days" Miata. As soon as I let off the gas the light goes away and I don't believe the sensor is actually dead.
#18
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You can throw an o2 code if the sensor is good if the car constantly runs rich. The ecu is looking for rich/lean/rich/lean, if it stays rich (due to a problem with a different sensor) for a set time, it will also throw an o2 code.