P0304 P0172 MAZDA SKYACTIV 2.5L PROBLEM & FIX!
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Customer complaint - smoke out of the exhaust - running rough. After clearing codes - p0304 and p0172 came back -
Started with compression test - all cylinders good - inspected spark plugs - found plug #4 fouled and wet with fuel - replacing injector fixed issue, may help you with a diagnosis!
SPECIAL TOOLS REQUIRED - DIRECT INJECTION SEAL INSTALL TOOL
COMPRESSION TESTER
SCAN TOOL TO READ FUEL TRIMS
Пікірлер: 1
Damn I have this on my WRX, I just replaced the spark plugs and maf sensor But no smoke Just backfires at idle and hesitates when accelerating