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1988 Ford Thunderbird LX 3.8L Poor Idle Quality, Hesitation, Surge, Misfire
Must be missing something simple here - car has surging idle, lean roll, acts as if EGR valve is leaking at idle. Blocked and tested the valve, showed no problems. Base idle and TPS set (TPS 1.15V closed, 4.4V WOT) and MAP Signal seems okay (140Hz KOEO, 110Hz ...
FIX posted 6/26/2006
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Message Closed w/FIX
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16 Replies Received
16 Replies Received
Related Documents & Media | VIN | 1FABP6242J |
| Engine | 3.8 L / 6 cyl / GAS |
| Trans | 4-speed Automatic |
| Delivery | FI / MPI |
| Emissions | US Federal |
| Symptoms | Poor Idle Quality, Hesitation, Surge, Misfire |
| Occurs | Always, Idle |
Trouble Codes
| 41 | HEGO Not Switching System Always Lean |
Message Closed w/FIX
Vehicle Data
1988 Ford Thunderbird LX
| VIN | 1FABP6242J |
| Engine | 3.8 L / 6 cyl / GAS |
| Trans | 4-speed Automatic |
| Delivery | FI / MPI |
| Emissions | US Federal |
| Symptoms | Poor Idle Quality, Hesitation, Surge, Misfire |
| Occurs | Always, Idle |
Trouble Codes
| 41 | HEGO Not Switching System Always Lean |
Video