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Re: 2001 Viggen - Emissions Testing - No CEL but an MIL code Posted by RS [Email] [Profile/Gallery]
(more from RS) on Mon, 11 Nov 2024 14:23:48
In Reply to: Re: 2001 Viggen - Emissions Testing - No CEL but an MIL code, SWEDECAR [Profile/Gallery]
, Sun, 10 Nov 2024 10:45:11
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Thanks for looking at this, Anders.
Is there a drive cycle specific to the OG 9^3? I've read a lot of different generic ones. My daily driving is a combination of city/suburban and short interstate.
The codes that were cleared were associated with running with the AMM connected but the turbo discharge disconnected from the intercooler. (I didn't know that the turbo had been disconnected from the intercooler until later.) It was dumping gas into the cylinders because the amount of air going into the engine was significantly lower than the amount of air the AMM was measuring.
If the O2 sensors keep having failing readings when I look at the ODB2 scan, I have new ones on order.
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