XJ5
NAXJA Forum User
- Location
- Sevierville, TN
Hey guys, 1997 4.0 check engine light came on and I got a code 21, poor fuel economy, and hard starting when cold. Autozone scanner confirmed O2 sensor. Should I go with Bosch or one of the cheaper brands on rockauto or oxygengeek.com? Has anybody had any experience with those other brands? Also, any tips on breaking the old one loose? TIA