Problem Description and Possible Solution
Hesitation and/or a lack of power can be caused by the secondary shutter valve (SSV) in the intake manifold becoming stuck open due to carbon build up around the SSV shaft. This may occur with no Check Engine light illumination but eventually the light will illuminate with code P2070 (Secondary Shutter Valve [SSV] stuck open). The cleaning procedure described under the service bulletin is a long process and it is recommended to install the updated SSV actuator and gaskets. The SSV is activated at higher RPM and the carbon accumulation can happen when it opens infrequently. The effects RX-8's built before April 18, 2007.
Average mileage: 79,673 (30,000–148,000)
31 people reported this problem
Hesitation is occurring when starting and does take more attempts to get started in the morning. It does seem to stutter when I'm out of gear and is okay when in gear.. My dealer doesn't offer to clean it, but says must replace it for $800 or so? Wondering what the prices were for those who had it cleaned instead as this seems to be an option.
I have had my car towed to a dealer 3 times and a Repair shop once. Each time the car engine would turn over, but not start. The engine was found to be flooded and excess gasoline was cleaned out. Battery and plugs replaced 2 times. The first time it happened, the dealer replaced SVV Valve with associated componets. Bulletin 01-019/08.
One week, or roughly 3 trips, after having my engine and catalytic converter replaced by the dealership under the warranty because of a weak seal causing engine decompression. I had the auxiliary port valve get stuck in the open position. This occurred when accelerating in either first or second gear when I reached either 6 or 7k RPM. This resulted in an immediate loss of performance. The cost of replacing the APV was around $1,000.