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1993 Jeep Wrangler 4.0L Excessive Emissions, High NOX
Vehicle came in for New York State Inspection and failed for NOX the limit is 4.5 gpm and this vehicle has no EGR. Performed decarbonization, cleaned spark plugs & found o2 to be lazy & replaced that also with no improvement. I'm now leaning towards a cat conv...
FIX posted 3/24/2001
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| VIN | 1J4FY29SXP |
| Engine | 4.0 L / 6 cyl / GAS |
| Trans | 5-speed Standard |
| Delivery | FI |
| Symptoms | Excessive Emissions, High NOx |
| Occurs | During Dyno Test |
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Vehicle Data
1993 Jeep Wrangler
| VIN | 1J4FY29SXP |
| Engine | 4.0 L / 6 cyl / GAS |
| Trans | 5-speed Standard |
| Delivery | FI |
| Symptoms | Excessive Emissions, High NOx |
| Occurs | During Dyno Test |
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