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1993 Cadillac DeVille 4.9L Excessive Emissions
ok first let me say thanks all this car fails loaded mode smog test nox limit is 687 has 1228 15 mph, vacuum signal is good at 15in pluged, but only 2 in when conecet to valve, if i restrict the exhause by 25-30 % then i get 14 in vacuum to valve and nox drops...
FIX posted 8/31/2005
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Message Closed w/FIX
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Related Documents & Media | VIN | 1G6CD13B7P |
| Engine | 4.9 L / 8 cyl / GAS |
| Trans | 4-speed Automatic (Electronic) |
| Delivery | FI / PFI |
| Emissions | OBD1 CA |
| Symptoms | Excessive Emissions |
| Occurs | Always |
Message Closed w/FIX
Vehicle Data
1993 Cadillac DeVille
| VIN | 1G6CD13B7P |
| Engine | 4.9 L / 8 cyl / GAS |
| Trans | 4-speed Automatic (Electronic) |
| Delivery | FI / PFI |
| Emissions | OBD1 CA |
| Symptoms | Excessive Emissions |
| Occurs | Always |
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