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1994 mazda 323 1.6 l fedral emission fail NOx
i hope some on can help me , i am working on 1994 mazda 323 fedral emission. vehicle fail on NOx at both speed. the NOx befor the catalytic 3320 ppm and after the catalytic 1560 on 15 mph, eng compression ok, no carbon found above all piston, fuel system in c... Login to read more. ![]()
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| Engine | 1.6 L |
| Trans | 4-speed Automatic (Electronic) |
Vehicle Data
1994 Mazda 323 1.6L
| Engine | 1.6 L |
| Trans | 4-speed Automatic (Electronic) |

9 Replies Received
9 Replies Received