Viggen spark knock issue? spark plugs? MAF? - Saab NG900 & OG9-3 Bulletin Board - Saabnet.com
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Viggen spark knock issue? spark plugs? MAF?
Posted by Lucas J. [Email] (more from Lucas J.) on Mon, 31 Oct 2005 17:48:53
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Background, I have a 2001 viggen with 46k miles. I have been meticulous about the maintenance of the car. The spark plugs are replaced with NGK BCPR7es-11 with a gap of .035 every other oil change (3500 miles between mobil one oil changes). I use 92 or 93 octane gas and also run Chevron Techron fuel system cleaner every time I change the plugs. I have noticed some spark knock when I apply the boost, also getting some hesitation. This is very bothersome to me having read other post of catastrophic failure due to spark knock and various other issues.... I have read past post and some people mentioned the MAF going bad, possibly causing the car to run lean resulting with spark knock. Does the MAF failure still seam to be a problem or the cause of spark knock? Also, will the tech II give a fault code if the MAF is inoperable? I'm also considering switching to the hotter plug (NGK BCPR6es-11) to see if this helps. Anyway, the car goes to the dealership this Friday. Any help would be appreciated!
Lucas J.
01 viggen 5dr
Chicago
posted by 67.173.69...
Posts in this Thread:
- Viggen spark knock issue? spark plugs? MAF?, Lucas J., Mon, 31 Oct 2005 17:48:53 <-- Viewing This Message
- Re: Viggen spark knock issue? spark plugs? MAF?, Lucas J., Wed, 2 Nov 2005 08:16:00
- I'd change the MAF also..., volksaab, Tue, 1 Nov 2005 11:08:41
- Another vote for MAF, Ben S, Tue, 1 Nov 2005 08:19:42
- Re: Viggen spark knock issue? spark plugs? MAF?, Dean, Tue, 1 Nov 2005 07:22:38
- Re: IDC or MAF, AT, Tue, 1 Nov 2005 07:14:34
- Re: Viggen spark knock issue? spark plugs? MAF?, Bruce B., Tue, 1 Nov 2005 03:13:53
- Re: Viggen spark knock issue? spark plugs? MAF?, KB900psi, Mon, 31 Oct 2005 19:31:39
- Re: Viggen spark knock issue? spark plugs? MAF?, Viggowner, Mon, 31 Oct 2005 18:46:14
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