Having problems with your 1996 Mercury Cougar XR7 ?
01 gmc jimmy with codes bank one and bank two to lean
\015 If i drive the vehicle hard it will run rough then if i give it time to i guess "catch its breath" it will run fine.\015
Those codes mean that you might have bad o2 sensors on bank 1 and 2 but can also be caused by bad fuel mixture
Repair Help & Product Troubleshooting for 1996 Mercury Cougar XR7
Tips for a great answer:- Provide details, support with references or personal experience .
- If you need clarification, ask it in the comment box .
- It's 100% free, no registration required.