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1989 Plymouth Colt 1.5L Excessive Emissions, High NOX
Being new to Dyno testing here in New York I'm haveing trouble diagnosing this veh. . Just tuned up, cleaned the throtle body & replaced the eng. pipe. Can someone tell me what can cause high NOX? Thanks in advance.
FIX posted 1/13/1999
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Related Documents & Media 
| VIN | JP3CU24X8K |
| Engine | 1.5 L / 4 cyl |
| Emissions | US Fed. |
| Symptoms | Excessive Emissions, High NOx |
| Occurs | On Accel, Cruise |
Message Closed w/FIX
Vehicle Data
1989 Plymouth Colt
| VIN | JP3CU24X8K |
| Engine | 1.5 L / 4 cyl |
| Emissions | US Fed. |
| Symptoms | Excessive Emissions, High NOx |
| Occurs | On Accel, Cruise |
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