If it's a fairly high mileage car, I'd be wiggling the wires going to CAS and coils while it's running. The tacho dropping is usually a good indicator that one of the wires has fatigued.
Bill Cardell TurboDog's Dad Flyin' Miata 1-800-359-6967 (sales) 970-464-5600 (tech support) www.flyinmiata.com www.fmwestfield.com ________________________________ From: [email protected] [mailto:[email protected]] On Behalf Of Eric McCord Sent: Friday, June 05, 2009 8:43 AM To: [email protected] Subject: New problem......surge along with ODD exhaust tone... I just got my alignment done and on the way home on the express way my car started surging and the exhaust got deeper and muffled more. Also, the turbo fluttered under boost. My tach dropped to 0 with the engine still running. The car shut down and I let it sit for a few minutes and then it ran fine. Eric
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