Having problems with your 1997 Mercury Cougar XR7 ?
Po 402,171,and174 codes mercury cougar need to pass emissions
\015 I have a 1997 mercury cougar that as soon as i clear the codes they come right back when i hit the highway. po 402,po171,po174. Ineed to get rid of these codes so i can register my car. Can anyone help?\015
Repair Help & Product Troubleshooting for 1997 Mercury Cougar XR7
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