HELP! '02 Viggen detonation problem SWEDECAR? - Saab NG900 & OG9-3 Bulletin Board - Saabnet.com
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HELP! '02 Viggen detonation problem SWEDECAR?
Posted by dasVettemeister [Email] (more from dasVettemeister) on Fri, 14 Sep 2007 12:26:53
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I am having big problems with detonation in my '02 Viggen. I live in AZ where we have crap gas and a lot of heat. The best I can get is 91 octane unless I spend $7 a gallon for race gas. The weird thing is I get detonation whether I mix in race gas or not. I even mixed it to the point of having 95 octane or more and the detonation persisted. The detonation occurs whether it is 80 degrees or 105 degrees.
Anyhow.... I noticed detonation a while back, and under the CPO warranty the dealer has replaced the DIC, MAF sensor, and updated the software. I have replaced the plugs with factory-spec PFR6H-10 (platinum). I am going to try a colder range BCPR7ES-11 (copper) today. Does anyone have any further suggestions?
posted by 70.176.58...
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