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1991 Mazda Miata 1.6L Excessive Emissions, High NOX
Car came in failing state emission test on NOX only. Aftermarket cat installed at another shop before it came to us still failing. Items tested So far: [...] psi all cyl.(kind of high but it's what we see normally),coolant temp sensor-in range,fuel pressure id...
FIX posted 6/5/2001
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| VIN | JM1NA3514M |
| Engine | 1.6 L / 4 cyl / GAS |
| Trans | 4-speed Standard |
| Delivery | FI / EFI |
| Emissions | OBD1, US Fed Emissions |
| Symptoms | Excessive Emissions, High NOx |
| Occurs | Always, Under Load |
| Misc. | 5-Speed Standard |
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Vehicle Data
1991 Mazda Miata
| VIN | JM1NA3514M |
| Engine | 1.6 L / 4 cyl / GAS |
| Trans | 4-speed Standard |
| Delivery | FI / EFI |
| Emissions | OBD1, US Fed Emissions |
| Symptoms | Excessive Emissions, High NOx |
| Occurs | Always, Under Load |
| Misc. | 5-Speed Standard |
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