help please

[char02gt]

i have a 02 gt and my check engine lite comes on but i know that i have no catts.i plugged in my tuner and it shows p1150,p1151. what does it meanany suggestions.also if i put a high flow catt will it go away..... thanks

[Steve]

P1150 - Lack of HO2S-21 Switch, Fuel Trim at Limit

top See DTC P1130

P1151 - Lack of HO2S-21 Switch, Sensor Indicates Lean

top A HEGO sensor indicating lean at the end of a test is trying to correct for an over-rich condition. The test fails when fuel control system no longer detects switching for a calibrated amount of time.
See Possible Causes for P1130

P1130
P1130 - Lack of HO2S-11 Switch, Fuel Trim at Limit

top 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.
Electrical:
Short to VPWR in harness or HO2S
Water in harness connector
Open/Shorted HO2S circuit
Corrosion or poor mating terminals and wiring
Damaged HO2S
Damaged PCM
Fuel System:
Excessive fuel pressure
Leaking/contaminated fuel injectors
Leaking fuel pressure regulator
Low fuel pressure or running out of fuel
Vapor recovery system
Induction System:
Air leaks after the MAF
Vacuum Leaks
PCV system
Improperly seated engine oil dipstick
EGR System:
Leaking gasket
Stuck EGR valve
Leaking diaphragm or EVR
Base Engine:
Oil overfill
Cam timing
Cylinder compression
Exhaust leaks before or near the HO2S(s)

your problem is in there somewhere.

[hotcobra03]

your problem is in there somewhere.

look at the causes....most of the time you get code for both banks,,than you look at things that will effect both sides of engine,,,

here you show 1 part with 2 codes.....

i would look for a exhaust leak within inches of o2..than check harness

than i would replace the o2 and go from there if code returns

[char02gt]

look at the causes....most of the time you get code for both banks,,than you look at things that will effect both sides of engine,,,

here you show 1 part with 2 codes.....

i would look for a exhaust leak within inches of o2..than check harness

than i would replace the o2 and go from there if code returns

i have a exhaust leak by the headers.i have long tubes and there are times i forget to slow down and ended up hiting it

[hotcobra03]

i have a exhaust leak by the headers.i have long tubes and there are times i forget to slow down and ended up hiting it

here is some reading material...its the full story by ford...look at tips pg11-20


http://fordfuelinjection.com/files/HEGO_OBDII.pdf


link where this is from

Ford Fuel Injection » Download Files

[hotcobra03]

did you find anything? what about on the tires also.what did u get?