mturnini98gt

P1130
P1131
P1405

Can anyone please offer up any suggestions of what they mean and how to fix?

92stangerang

P1130 - Lack of HO2S-11 Switch, Fuel Trim at Limit Meaning - The HEGO Sensor is monitored for switching. The test fails when the HO2S fails to switch due to circuit or fuel at or exceeding a calibrated limit.P1131 - Lack of HO2S-11 Switch, Sensor Indicates Lean Meaning - A HEGO sensor indicating lean at the end of a test is trying to correct for an over-rich condition. The test fails when the fuel control system no longer detects switching for a calibrated amount of time

P1405-Differential Pressure [/b]Feedback Electronic (DPFE) sensor upstream hose off [/b]or plugged - or cracked
Have you changed your throttle body or chipped the car lately??

mturnini98gt

Nope, Ive neither chipped or changed the TB. Maybe its just an old clugged hose??

As for the o2 sensors, I should just replace all 4 of them? These issues are really killing my mpg!!