Re: Viggen help needed - Saab NG900 & OG9-3 Bulletin Board - Saabnet.com
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Re: Viggen help needed
Posted by AlaskanViggen [Email] (more from AlaskanViggen) on Wed, 17 Dec 2008 22:07:50
In Reply to: Viggen help needed, Adam from PA, Wed, 17 Dec 2008 07:38:49
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I had the same issue with my temp gauge for a while, first thought a bad thermostat, but the problem went away just as mysteriously as it arrived. I settled on a bad sensor or wire, because my daily routine is very consistent and the heat output of the interior heater did not change any.
I am pretty sure there are two temperature sensors for the computer to use, so the one for the gauge _I don't think_ affects the computer any. At least I didn't have any issues, no codes, etc. I had the problem randomly for a few months.
If you suspect a fuel issue, you can temporarily hook up a pressure gauge for the fuel injection system to see if anything looks fishy. Also try a mighty-vac with gauge to check various vacuum lines and solenoids for leak-down.
If you have a code reader, see if it says all readiness checks completed OK. The one I have showed the EVAP system was not complete which matched up with a problem I was having. Even though there were no codes present, the computer could not complete the test, which showed up on the scanner. For a CEL to come on, you may have to have 4 errors within 5 driving cycles, or 3 in a row, or whatever. The computer doesn't always throw a code right away...
posted by 209.112.138...
Posts in this Thread:
- Viggen help needed, Adam from PA, Wed, 17 Dec 2008 07:38:49
- Replaced the DIC; Car is now running., Adam from PA, Tue, 23 Dec 2008 05:47:21
- fouled plugs/won't start at all now, Adam from PA, Thu, 18 Dec 2008 17:43:36
- Re: Viggen help needed, AlaskanViggen, Wed, 17 Dec 2008 22:07:50 <-- Viewing This Message
- Re: Viggen help needed, CTViggen, Wed, 17 Dec 2008 16:28:47
- DIC, andym, Wed, 17 Dec 2008 11:26:21
- Re: DIC, Adam from PA, Wed, 17 Dec 2008 13:30:36
- Re: DIC, xboostreapx, Wed, 17 Dec 2008 11:29:51
- Re: Viggen help needed, Saabnutt, Wed, 17 Dec 2008 08:14:26
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