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1987 Oldsmobile Delta 88 Royale Brougham 3.8L Fast Idle
THE DATA FROM THE MASTER TECH LEADS ME TO THINK THAT THE ECM IS FORCING THE HIGH IDLE 1500RPM ALL THE TIME. THE IAC IS FIXED AT 66 COUNTS. IF I SEAT THE IAC THE VEHICLE IDLES AROUND 55O RPM, WHICH ELIMINATES THE POSSIBILITY OF A VACUUM LEAK. ECT IS OK.
FIX posted 9/2/2000
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Message Closed w/FIX
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Related Documents & Media | VIN | 1G3HY5135H |
| Engine | 3.8 L / 6 cyl / GAS |
| Trans | 4-speed Automatic |
| Delivery | FI / EFI |
| Emissions | OBDI |
| Symptoms | Fast Idle |
| Occurs | Always |
| Misc. | Prom Id 1274 |
Message Closed w/FIX
Vehicle Data
1987 Oldsmobile Delta 88 Royale Brougham
| VIN | 1G3HY5135H |
| Engine | 3.8 L / 6 cyl / GAS |
| Trans | 4-speed Automatic |
| Delivery | FI / EFI |
| Emissions | OBDI |
| Symptoms | Fast Idle |
| Occurs | Always |
| Misc. | Prom Id 1274 |
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