P0432 / LTFT -17% both sides - Please help
Record Breaker
Joined: Dec 2018
Posts: 1,075
Likes: 165
Both catalytic converters seem to be doing something as the downstream readings have less amplitude compared to the upstream readings but maybe it's not enough. Don't know what the limit is where the PCM declares the cat inefficient.
The absolute numbers don't make sense though as the downstream readings should hover around .45V but that seems only the case for bank 1 at 2k RPM. That might be an artifact of the dog slow communication between the PCM and the tool. Try to only read one bank/two sensors at a time and see if it looks differently.
Sorry running out of ideas.
The absolute numbers don't make sense though as the downstream readings should hover around .45V but that seems only the case for bank 1 at 2k RPM. That might be an artifact of the dog slow communication between the PCM and the tool. Try to only read one bank/two sensors at a time and see if it looks differently.
Sorry running out of ideas.
Legend
Joined: Nov 2014
Posts: 8,098
Likes: 318
Both catalytic converters seem to be doing something as the downstream readings have less amplitude compared to the upstream readings but maybe it's not enough. Don't know what the limit is where the PCM declares the cat inefficient.
The absolute numbers don't make sense though as the downstream readings should hover around .45V but that seems only the case for bank 1 at 2k RPM. That might be an artifact of the dog slow communication between the PCM and the tool. Try to only read one bank/two sensors at a time and see if it looks differently.
Sorry running out of ideas.
The absolute numbers don't make sense though as the downstream readings should hover around .45V but that seems only the case for bank 1 at 2k RPM. That might be an artifact of the dog slow communication between the PCM and the tool. Try to only read one bank/two sensors at a time and see if it looks differently.
Sorry running out of ideas.
