Topic: error code 0420 (Read 967 times)

viscount51 · « **on:** 22 November 2013, 18:11:13 »

Is this a sensor fault ?

RobG · « **Reply #1 on:** 22 November 2013, 18:17:23 »

chrisgixer · « **Reply #2 on:** 22 November 2013, 18:38:20 »

No. Its a tired pre cat fault. Do not replace a sensor. Re position, but not replace.

05omegav6 · « **Reply #3 on:** 22 November 2013, 19:54:33 »

No. Its a tired pre cat fault. Do not replace a sensor. Re position, but not replace.

Or simply ignore

Joking aside, put two cans of Wynns fuel treatment in, fill with Shell V power, rag the nuts off it, repeat a couple of times

Only works if the light has just come on for the first time, repeating every few months helps to keep it at bay, but it will come back eventually

As above, the tried and tested cure is to move the sensor further down the exhaust

Oh and expect an 0430 soon

same fault but tother side

biggriffin · « **Reply #4 on:** 22 November 2013, 20:09:15 »

Or fit a pair of 3.0L pipes, with extra bosses

05omegav6 · « **Reply #5 on:** 22 November 2013, 20:14:21 »

Or fit a pair of 3.0L pipes, with extra bosses

Or that