SES CODE HELP!

This is what my code book says for the Ford.
"Lack of HO2S21 Switches - Sensor Indicates Rich."

pretty sure its a contamination of your maf sensor. if it's contaminated you're car's gonna run lean most likely. get dielectic cleaner and a drill bit/drill. break the tamper tabs on the MAF harness and use a torx t-20 bit to remove the sensor. take a small brush and spray it with dielectic cleaner and clean the maf that way. reset the comp. this'll cause your long term fuel trims to run lean, usually at WOT (open loop). hope this helps.

Diagnostic Trouble Codes (DTCs) P1131 bank (1) (Cylinder #1) and P1151 bank (2) indicate the fuel/air ratio is correcting rich for an overly lean condition. The HO2S voltage is less than 0.45 volt. DTCs P1132 bank (1) (Cylinder #1) and P1152 bank (2) indicate the fuel/air ratio is correcting lean for an overly rich condition. The HO2S voltage is greater than 0.45 volt.

DTCs P1130 and P1150 indicate the fuel control system has reached maximum compensation for a lean or rich condition and the HO2S is not switching.

DTC/HO2S Reference List

-- HO2S-11 = DTCs P1131, P1132 and P1130

-- HO2S-21 = DTCs P1151, P1152 and P1150

Possible causes:

Fuel system

-- Excessive fuel pressure.

-- Leaking fuel injector(s).

-- Leaking fuel pressure regulator.

-- Low fuel pressure.

-- Contaminated injector(s)

Induction system

-- Air leaks after the MAF.

-- Vacuum leaks.

-- Restricted air inlet.

-- PCV system.

-- Fuel purge system.

-- Improperly seated dip stick.

EGR

-- Leaking gasket.

-- Stuck open EGR valve.

-- Leaking diaphragm.

Base engine

-- Oil overfill.

-- Cam timing.

-- Cylinder compression.

-- Exhaust leaks before or near the HO2Ss.

HP Addiction said:

Thanks for the HELP! Gonna go trouble shoot now

Click to expand...

did this ever get fixed?
I'm getting p1152 and p1132.

P1152 Lack of Upstream Heated Oxygen Sensor Switch - Sensor Indicates Rich - Bank No. 2.