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1987 Oldsmobile Delta 88 Royale Brougham 3.8L Excessive Emissions, No Closed Loop
Greetings all! This is a good one. I can't get this car to go closed loop to save my life. O2 sensor is new, MAF sensor has been replaced with a known good one, CTS, TPS, MAT are all in specs...computer grounds (3) voltage drop tests show .15v ... dedicated O2...
FIX posted 3/24/1998
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| VIN | 1G3HY513XH |
| Engine | 3.8 L / 6 cyl / GAS |
| Trans | 4-speed Automatic |
| Delivery | FI / SEFI |
| Symptoms | Excessive Emissions, No Closed Loop |
| Occurs | Always |
Message Closed w/FIX
Vehicle Data
1987 Oldsmobile Delta 88 Royale Brougham
| VIN | 1G3HY513XH |
| Engine | 3.8 L / 6 cyl / GAS |
| Trans | 4-speed Automatic |
| Delivery | FI / SEFI |
| Symptoms | Excessive Emissions, No Closed Loop |
| Occurs | Always |
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