2010 LR4 V8 with 240k miles. Trying to get CA smog, but the catalytic monitor won't get to ready state, so it won't pass smog (the other two monitors do pass - O2 and Evap). Injectors were replaced last year and the fuel trims look ok (within +/- 4%).
1) anyone have this issue?
2) is there a 'drive cycle' I need to follow?
3) should I replace the O2 sensors (all 4) as they are still original?
Thanks for any advice - love this truck and want to keep it going.
1) anyone have this issue?
2) is there a 'drive cycle' I need to follow?
3) should I replace the O2 sensors (all 4) as they are still original?
Thanks for any advice - love this truck and want to keep it going.