OK I did some research on this. Had a SES light come on this AM. Truck was running crappy like it was missing.

Went to Autozone pulled only 1 code

P1152 Fuel Air Metering something.

Any Ideas? I removed my TB, Chip 4lb pulley and 90mm MAss air. Put on my old 80mm MAss air. Still running crappy but so far no SES light. Could this be a O2 sensor, or possibly spark plug, coil pack or Fuel pump?


Any help would be appreciated.

Tanks!

 

From what I could find, that code refers to "oxygen sensor reading rich". So either you have a air/fuel prob, or perhaps a sensor failure.

Good Luck,
Mark

 

so would this be the Drivers side O2 closest to the exhaust manifold?

I have a spare O2 lying around

 

P1152 - Lack of HO2S-21 Switch, Sensor Indicates Rich A HEGO sensor indicating rich at the end of a test is trying to correct for an over-lean condition. The test fails when the fuel control system no longer detects switching for a calibrated amount of time. See Possible Causes for DTC P1130

P1130 - Lack of HO2S-11 Switch, Fuel Trim at Limit 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)
A fuel control HO2S PID switching across 0.45 volt from 0.2 to 0.9 volt indicates a normal switching HO2S.

 

if i were you i'd check all of my vacuum lines and what not.. sounds like your getting unmetered air some where?!? If not i'd start looking at a possible bad HEGO sensor.. but im just guessing.. hopefully someone else will chime in

 

Is your chip newly burned or just installed?

Mark

 

I removed it and this code still shows up. Still need to check O2 sensor

What's HEGO??

 

HEGO - Heated Exhaust Gas Oxygen... not sure what it does or where it is.. but i'd still bet there's a vacuum line somewhere unplugged or melted.. check for the crankcase lines (passenger side comes into a T and T goes to upper plenum and behind engine into intake manifold; drivers side goes under the intake boot) or maybe even the vacuum line coming off the top of your EGR? It might be melted.. but if u have an O2 lyin around.. it never hurts to throw it on there and get it out of the equation..

 

HEGO = O2 SENSOR

 

Well, I changed the O2 sensor and so far seems to running much better. Keeping my fingers crossed.

I did check my vacum lines at 1st, and found nothing wrong. Hopefully this fixes it cause its too cold out to be working on th truck.