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1993 Mercury Cougar XR-7 3.8L Poor Idle Quality
Customer dropped off car with fast idle, 4000 to 5000 RPM.
We tested for a vacuum leak around intake, injectors, and
vacuum hoses. Found no idle change. Next I removed the IAC
and found it to be stuck slightly open. After replacing the
IAC the car ran great.
FIX posted 1/23/2006
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Message Closed w/FIX
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Related Documents & Media | VIN | 1MEPM6240P |
| Engine | 3.8 L / 6 cyl / GAS |
| Trans | 4-speed Automatic |
| Delivery | FI / MPI |
| Emissions | OBD1 |
| Symptoms | Poor Idle Quality |
| Occurs | Always |
Trouble Codes
| 157 | maf voltage low |
| 173 | system rich bank 1 |
| 211 | pip circuit failure |
| 326 | ept low voltage |
| 335 | ept voltage range |
Message Closed w/FIX
Vehicle Data
1993 Mercury Cougar XR-7
| VIN | 1MEPM6240P |
| Engine | 3.8 L / 6 cyl / GAS |
| Trans | 4-speed Automatic |
| Delivery | FI / MPI |
| Emissions | OBD1 |
| Symptoms | Poor Idle Quality |
| Occurs | Always |
Trouble Codes
| 157 | maf voltage low |
| 173 | system rich bank 1 |
| 211 | pip circuit failure |
| 326 | ept low voltage |
| 335 | ept voltage range |
Video