98 2.5 millenia runs rough p0400

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98 2.5 millenia runs rough p0400

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Mazda Forums >> Mazda Vehicles >> Mazda Millenia >> 98 2.5 millenia runs rough p0400

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98 2.5 millenia runs rough p0400 - 7/8/2008 10:36:21 PM

wgorham

Posts: 1
Joined: 7/8/2008
Status: offline

I have a 98 2.5 millenia that runs rough at 1500 rpms and at 2500-3000 rpms or over 60mph. I went to advanced and the scanner pulled a 0400. After getting the code I cleaned the ports behing the throttle body that were completely covered and cleaned the vac port from the intake to the boost/map sensor and cleaned the egr and cleared the codes. The car still has the slight miss at 1500rpm and runs really rough at 2500-3000 rpm. Has anyone ever had this problem? Any help will be greatly appreciated.