2001 3.0L P1152 code
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2001 3.0L P1152 code
Daughters truck is stumbling at mid rpms and throwing P1152
lack of O2 switches bank 2 sensor 1 rich
O2 sensor at rich limit
Causes 1 Fuel Pressure 2 EGR stuck open 3 Mechanical Condition
I have heard replacing the EGR will temporarily fix it
what are the trouble shooting steps for this code
and what is the best permanent fix?
lack of O2 switches bank 2 sensor 1 rich
O2 sensor at rich limit
Causes 1 Fuel Pressure 2 EGR stuck open 3 Mechanical Condition
I have heard replacing the EGR will temporarily fix it
what are the trouble shooting steps for this code
and what is the best permanent fix?
Moderator
Joined: Jan 2004
Posts: 13,851
Likes: 111
From: SW Va
Welcome to FTE.
Is this the only trouble code she has???? If not, post All code Numbers as they can offer up good trouble shooting clues.
Seeing as right now you seem to have only one code & its for the drivers side cyl bank, maybe put a weeping fuel injector on the suspect list. Maybe have a listen to all injectors in that bank with a stethoscope, to try & determine which may be suspect if it sounds different from the others. Then maybe pull the spark plug to see if it looks to be carbon fouled & if so, remove that cyl fuel injector for inspection.
Seeing as how you don't have an EGR trouble code, leave it alone & concentrate on the O2 sensor code for cyl bank 2. If you have a scantool that'll read PID's, have a look at fuel trim for cyl bank 2 to see if it'll confirm an overly rich fuel trim for that cyl bank.
I suppose you could have a bad vacuum leak that's caused the computer to try & compensate by enriching fuel mixture.
If you can't hear a suspect injector to inspect, remove all plugs from cyl bank 2 for a read, to see how they all look for deposits.
Did the problem come about suddenly, after some event????
With some more clues, the forum may be able to make a more focused guess on what best to do next.
Is this the only trouble code she has???? If not, post All code Numbers as they can offer up good trouble shooting clues.
Seeing as right now you seem to have only one code & its for the drivers side cyl bank, maybe put a weeping fuel injector on the suspect list. Maybe have a listen to all injectors in that bank with a stethoscope, to try & determine which may be suspect if it sounds different from the others. Then maybe pull the spark plug to see if it looks to be carbon fouled & if so, remove that cyl fuel injector for inspection.
Seeing as how you don't have an EGR trouble code, leave it alone & concentrate on the O2 sensor code for cyl bank 2. If you have a scantool that'll read PID's, have a look at fuel trim for cyl bank 2 to see if it'll confirm an overly rich fuel trim for that cyl bank.
I suppose you could have a bad vacuum leak that's caused the computer to try & compensate by enriching fuel mixture.
If you can't hear a suspect injector to inspect, remove all plugs from cyl bank 2 for a read, to see how they all look for deposits.
Did the problem come about suddenly, after some event????
With some more clues, the forum may be able to make a more focused guess on what best to do next.
Post Fiend
Joined: Jan 2003
Posts: 9,748
Likes: 16
From: Connecticut
Did the stumbling start when the CEL/DTC 1152 first appeared?
That code is often associated with either a bad O2 sensor (located on driver's side exhaust, before the cat) or a problem with the circuitry:
- 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
That being said, like paw paw noted, the cause could also be mechanically related, such as a bad fuel injector.
But I would start by looking over the 02 harness connector and wiring. I would even consider replacing the 02 sensor if it's the original.
That code is often associated with either a bad O2 sensor (located on driver's side exhaust, before the cat) or a problem with the circuitry:
- 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
That being said, like paw paw noted, the cause could also be mechanically related, such as a bad fuel injector.
But I would start by looking over the 02 harness connector and wiring. I would even consider replacing the 02 sensor if it's the original.
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