Question about Saab 900

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Check engine light flashing on my 1987 saab please help

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  • randy custer Feb 17, 2009

    could the throttle position sensor be a likely cause of this problem because the saab is also missing and lacks power when accelerateing Thanks I was about to give it up before your e-mail I'll be waiting for your reply

  • randy custer Feb 17, 2009

    could the throttle position sensor be a likely cause of this problem because the saab is also missing and lacks power when accelerateing Thanks I was about to give it up before your e-mail I'll be waiting for your reply

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When its flashing that means that there is an emision problem bad enough to damage the catilatic converters

Posted on Feb 17, 2009

  • Breckon b Feb 17, 2009

    almost sounds like the converter is puged im sorry its sounding more and more like dealer kinda prob, at a idle will it respond fast to full throtle

  • Breckon b Feb 17, 2009

    will it rev up fast to full throtle when at idle im kinda stuck on what the prob could be of the top of my head

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SOURCE: 1987 saab 900s check engine light flashing what

its very hard to say. the best thing to do is go to an auto place that will read it for free, write down the codes, and come back and tell us

Posted on Nov 04, 2009

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How do the obd 2 clear the check engine light on a 1995 Saab


  • A 1995 Saab 900 still used the ISO 9141 not OBD II so an OBD II will serve no purpose to your vehicle. Saab 900 did not use OBD II until 1996. If you want the check engine light to go away on this vehicle you have to fix the problem and then the battery disconnected for a couple minutes and the light should stay away if all is OK.

  • If you have any comments please feel free to leave them here.
  • Hope this helps and thank you for using FixYa.


Regards, Tony

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1 Answer

1987 saab 900s check engine light flashing what could be wrong? runs great,fluids fine,not over heating the light goes on after i"ve driven for 1/2 hour or more. thanks.


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2 Answers

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Two most common problems for this are the DIC and the fuel pump. Can also be the CPS. First check the code. You can try this first before going to a code reader: 1.With the car already off, switch on the ignition without starting the engine. 2. After approx. 6 seconds, the 'Check Engine' light goes out for an instant before lighting up again for 3 seconds. This 3 second flash is a warning that the actual flashing code is about to start. 3. The flashing code consists of a number of short flashes lasting 0.4 seconds. The 'Check Engine' light goes out for 2 seconds between each new flashing code (if there is more than one fault). 4. After the last flashing code, the 'Check Engine' light goes out for 3 seconds before lighting up again for 3 seconds, after which the flashing codes are repeated. Readout continues in this way as many times as you wish. Number of flashes / Function 2 / Manifold absolute pressure sensor 3 / Temperature sensor, manifold 4 / Temperature sensor, coolant 5 / Throttle position sensor 6 / Oxygen sensor 7 / Adaptation 8 / Purge valve (EVAP valve) 9 / ECM, internal fault If no flashing codes display, the problem is something else (other than those nine listed above) and must be determined using a generic code reader that supports OBD 1, or using the GM/Saab Tech II code reader and programmer. My money is on the DIC as it is a very common failure component and fuel pump failures rarely throw a code. The DICs are good generally to 100,000 to 150,000 miles, but this varies wildly, especially if the car is run with overgapped plugs for any length of time. The plug gap should be 1 mm and no more. Cars that are scrupulously maintained vis-a-vis the plug gapping can see DICs last over 200,000 miles.

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3 Answers

Do I check manual transmission fluid on 1987 Saab turbo with engine running or not?


never, off naturally.
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1 Answer

1987 Saab, battery problems or my own error?


If some internal light "went out" but the switch is still "on", that might do it.
Something could be shorted. Check power seats' wiring. Radio.

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1 Answer

Retrieve fault codes 92 900


Fault codes come from the fuel injection system diagnostic circuitry, which can store up to three faults. They can be read through the check engine light in the dash. You'll need to make a switched test lead with a spade connector on one end for connecting to the test connector. The other end is connected to ground. In 1992 the test connector is located beneath rear seat in sedan, or under the bellows ahead of shifter in convertible. With ignition off and test lead off, connect test lead to ground and test connector pin 2. turn ignition key to ON When Check Engine light comes on, turn test lead switch ON; Check Engine light should immediately go out When Check Engine light flashes ONCE, IMMEDIATELY turn test lead switch OFF Any fault codes will flash through the Check Engine light, with a long flash at beginning and end of each code; code flashes are short flashes, each block of flashes is separated by a longer space. With the engne OFF, the first fault code is that for "No RPM" 1 2 2 3 1, it will look like oooo x xx xx xxx x oooo where o = steady on, x = single flash There are over 20 fault codes, so get yourself a copy of the best source of info on this car: the "Bentley Bible" aka the Saab 900 Official Service Manual, costs about $40 from Amazon 16 valve manual: http://www.amazon.com/Saab-900-Valve-Service-Manual/dp/0837603137 8 valve manual :http://www.amazon.com/Eight-Official-Service-Manual-1981-1988/dp/0837603102 Hope this helps, if it does please give a "thumbs up", thanks Saabreur

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