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V6 Stumble + Evap Canister Close CEL
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Posted by iveand [Email] (#3155) [Profile/Gallery] (more from iveand) on Sat, 9 Dec 2023 14:44:17 Share Post by Email
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Not certain that they are related, but I am trying to sort out a "stumble", "cut" at about 1200 - 1600 rpm when accelerating. Turbo gauge is spooling, then it will "stumble/clunk/cut" once (or up to 3 times) then as rpm gets up it will stop, and run fine.

I suspect it is also running rich, I am seeing black soot on the tail pipes. MPG has been suffering too (compared to 8 months ago). The "stumble/clunk" has been getting progressively more frequent over the past several months. It is nearly reliably occurring now on any acceleration.

Since I took possession about 9 months back I have had a ME9 P0449 Evap Canister Close DTC.

Digging around the board, I see mentions of replacing the EVAP canister purge valve helping. As it is tucked back there I wanted to get some input before I dig in there. With the P0449 maybe it is the electrical connection to the purge valve?

I see I can get original AC Delco / Bosch 12611801 valve on Amazon or Ebay, but my regular eeuro go-to doesn't seem to stock it anymore.

Thanks for any thoughts,

iveand
2006 9-3 Aero Combi 6-speed 223K 
_______________________________________
2006 9-3 Aero SC 2.8T 6-speed (current)
1990 900 SPG 2.0T 5-speed (current)
1985 900 2.0T 5-speed ("DOA" donor car)
1985 900 2.0T 4-door 5-speed (gifted to friend, RIP)
1996 900S 2.3L 5-speed (gifted to friend, RIP?)
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