Found this on another website... http://www.mrlilguycdfps.com/random/4208HPFP_TSB.pdf Subject: ROUGH IDLE, LACK OF POWER, AND/OR MIL ON WITH DTC P2177/P2187 (FUEL SYSTEM LEAN) Bulletin No: 01-022/08 Last Issued: 04/02/2008 Service Bulletin Mazda North American Operations Irvine, CA 92618-2922 MULTI-MODEL- ROUGH IDLE, LACK OF POWER, AND/OR MIL ON WITH DTC P2177/P2187 (FUEL SYSTEM LEAN) BULLETIN NOTE This bulletin supersedes the previous bulletin issued on 03/27/08. The REPAIR PROCEDURE has been revised. APPLICABLE MODEL(S)/VINS 2007-2008 Mazdaspeed3 vehicles with VINs lower than JM1BK**** ** 859606 (produced before November 22, 2007) 2006-2007 Mazdaspeed6 vehicles 2007-2008 CX-7 vehicles with VINs lower than JM3ER**** ** 196510 (produced before November 19, 2007) DESCRIPTION Due to low fuel pressure at the high-pressure fuel pump, some vehicles may experience the following: • Rough idle, stall, and/or hesitation under cold conditions. • Intermittent lack of power during acceleration when the engine gets hot. • MIL turns on with DTC P2177/P2187 (fuel system too lean at off idle). This is caused by a delayed fuel pressure build-up from the high pressure fuel pump. There are two main reasons for this: 1. The drive current from the PCM is not enough for some fuel pumps. 2. Some fuel pumps have slower response. To fix the problem, the PCM software and the specification of the high-pressure fuel pump have been changed. Customers having this concern should have their vehicle repaired using the following repair procedure.