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Old 05-07-07
RedIndian2000 RedIndian2000 is offline
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Join Date: Apr 2006                                                
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Default 1995 900s - How to check engine codes?

Ok, I've tried everything I could find to try and get the trouble code out of the car. My first notion was that it was OBD-I because the obvious that OBD-II didn't become mandatory until 1996. I used an OBD-II reader just to be sure because I read that Saab "may have" switched to OBD-II before 1996. Well, the scanner didn't do anything. There is also only one O2 sensor before the cat which could only be OBD-I.

So, I tried the OBD-I trouble code recovery route:

I grounded the connection on the serial port under the dashboard, (http://www.saabcentral.com/%7Emunki/...s_motronic.htm) to no avail.

I've tried just turning the engine to "On" and waiting for the flashing to begin, (http://www.saabcentral.com/%7Emunki/technical/engine/electrical/cel_codes_trionic.htm), which was also fruitless.

I've even looked under the passengers rear seat to find a hidden serial connector, but nothing there...

Just to try and fix the most common problem for a check engine light, I put in a new O2 sensor, unplugged the battery overnight, and that pesky light came back on the next afternoon...

I plan on going the local Saab "stealership" soon and am mustering the courage to fork over $105.00 to find out what is actually causing the whole problem... But any help for the do-it-yourselfer to check this light is extremely appreciated. Thank you!!

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Old 05-07-07
Saabohème's Avatar
Saabohème Saabohème is online now
Join Date: May 2004                                                
Location: Columbus, Ohio
My Saabs: 2008 9-3 SS 2.0 6Spd JZW Stage 1
Posts: 7,387

Get the code read at Autozone and then plug it into one of these:





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Old 06-07-07
Tweek's Turbos Tweek's Turbos is offline
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Join Date: Dec 2002                                                
Location: Northern VA.
My Saabs: 07 9-5 Combi, 99 9-3 Viggen, 85 900 SPG
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Does your check engine light even come on? Ive always had the flashing cel light work for me.
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Old 07-07-07
RedIndian2000 RedIndian2000 is offline
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Join Date: Apr 2006                                                
Location: Cape Cod
My Saabs: 900s
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The light is on continuosly and doesn't flash at all. Just for a little more info, it's also been stalling every now and then when I put the clutch all the way and take my foot of the gas. Maybe once a day, but otherwise it runs fine. Any ideas are greatly appreciated
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