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1993 Cadillac DeVille 4.9L Excessive Emissions, Poor Idle Quality
hello everyone, i have an 93 4.9 caddy that's run rough and backfire like crazy, after running about 5 min. i check the code and cleared the codes. the codes did not come back. fuel pressure is ok, all sensors are within specs, injectors within specs. this car...
FIX posted 11/3/2000
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| VIN | 1G6CD5387P |
| Engine | 4.9 L / 8 cyl / GAS |
| Trans | 4-speed Automatic (Electronic) |
| Delivery | FI / PFI |
| Emissions | US |
| Symptoms | Excessive Emissions, Poor Idle Quality |
| Occurs | Hot, on Accel |
Trouble Codes
| E31 | shorted map sensor |
| E52 | pcm memory reset |
| E53 | distri signal interrupt |
| E98 | park neutral to drive / reverse problem in isc |
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Vehicle Data
1993 Cadillac DeVille
| VIN | 1G6CD5387P |
| Engine | 4.9 L / 8 cyl / GAS |
| Trans | 4-speed Automatic (Electronic) |
| Delivery | FI / PFI |
| Emissions | US |
| Symptoms | Excessive Emissions, Poor Idle Quality |
| Occurs | Hot, on Accel |
Trouble Codes
| E31 | shorted map sensor |
| E52 | pcm memory reset |
| E53 | distri signal interrupt |
| E98 | park neutral to drive / reverse problem in isc |
Video