
1998 Ford Mustang GT 4.6L Poor Idle Quality
Long term fuel trims are running -25 on both sides of the engine(codes 172 and 175). Spark plugs have a white cast on all side wires. Customer just bought the car and had us install a reman engine. He thinks that the previous owner "tuned" the computer with an...
Summary posted 8/31/2010
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Message Closed w/Summary
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VIN | 1FAFP42X4W |
Engine | 4.6 L / 8 cyl / GAS |
Trans | 5-speed Standard |
Delivery | Fuel Injection |
Emissions | OBD-II Compliant |
Symptoms | Poor Idle Quality |
Occurs | Always |
Trouble Codes
172 | 175 - |
175 |
Message Closed w/Summary
Vehicle Data
1998 Ford Mustang GT
VIN | 1FAFP42X4W |
Engine | 4.6 L / 8 cyl / GAS |
Trans | 5-speed Standard |
Delivery | Fuel Injection |
Emissions | OBD-II Compliant |
Symptoms | Poor Idle Quality |
Occurs | Always |
Trouble Codes
172 | 175 - |
175 |