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Please help! CEL issues/power issues

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Old 11-14-2011, 08:10 PM
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Please help! CEL issues/power issues
I need help guys! I have a CEL PO661 (intake problem).....the car drives fine under 5k RPM but when I go above 5k, the car hesitates. When I hit 8,9k the rpm's flicker back and fourth and it feels like its misfiring.

Mazda told me it was the SSV solenoid. I replaced it and still having the same problem. I then replaced all spark plugs, same problem. Replaced MAF, same problem.

05, 130,000 miles (60,000 on motor).....

Suggestions?
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Old 11-14-2011, 08:38 PM
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have you checked for any leaks in the intake?
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Old 11-14-2011, 08:50 PM
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Yeah, I have took the intake off twice, and cannot find any leaks.....I keep thinking it must be a vacuum leak, but I can't find anything.
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Old 11-14-2011, 09:03 PM
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https://www.rx8club.com/showpost.php...70&postcount=4

edit: oops, I posted the wrong link. I wanted to post the whole thread
https://www.rx8club.com/series-i-trouble-shooting-95/cel-p0661-ssv-circuit-low-2-a-182125/
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Old 11-15-2011, 01:51 PM
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All vacuum lines are connected. Correct solenoid replaced. Still getting the problem. Any further ideas ?
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Old 11-23-2018, 08:25 PM
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Last edited by Ghost8; 11-23-2018 at 08:28 PM. Reason: quick replied to wrong post
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