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10-07-2011, 04:27 PM
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Need help with codes P1132 P1152 P0172 P0175
It's a 2002 Ranger Edge 4x2 3.0 with 130k on body and about 65k on engine. Check engine light codes were P0340, P1336, P0172 and P0175 a week ago. Correctly replaced the synchronizer and the cam position sensor. Took it to the dealership to have the PCM reflashed and they told me I needed a new coil pack (they damaged it at the dealership 'cause it was firing fine before it went in). Replaced the coil pack last night, deleted the codes and 4 miles later the check engine light comes on again. Just went to Napa and the codes now are P1132, P1152, P0172 and P0175. ANY SUGGESTIONS WILL BE GREATLY APPRECIATED.
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10-07-2011, 05:57 PM
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ford dealer parts guy
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Re: Need help with codes P1132 P1152 P0172 P0175
got these codes from this website http://www.obd-codes.com/trouble_codes/ford/
P1132 Lack of Upstream Heated Oxygen Sensor Switch - Sensor Indicates Rich - Bank No. 1
P1152 Lack of Upstream Heated Oxygen Sensor Switch - Sensor Indicates Rich - Bank No. 2
P0172 System too Rich (Bank 1)
P0175 System too Rich (Bank 2)
so you prolly noticed they are all system too rich DTCs...id start with the o2 sensors
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2021 F150 5.0 Screw
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10-07-2011, 09:43 PM
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Learning to use the forums
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Join Date: Dec 2010
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Re: Need help with codes P1132 P1152 P0172 P0175
Will give that a shot. I appreciate your input.
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10-07-2011, 09:48 PM
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Blinded by the light
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Re: Need help with codes P1132 P1152 P0172 P0175
It seems unlikely that both O2 sensors died at the same exact time. Therefore it is far more likely you are indeed running rich on both banks. Does the exhaust smell rich? Is the engine running smoothly?
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10-08-2011, 04:51 AM
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Re: Need help with codes P1132 P1152 P0172 P0175
Engine is running smoothly and fumes coming out the exhaust don't really smell rich. I just got quoted $78 for each of the front O2's and $55 for the rear.
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10-08-2011, 05:53 AM
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Re: Need help with codes P1132 P1152 P0172 P0175
Well I would work on things that would cause the engine to run rich before you spend hundreds of dollars on sensors that are most likely working fine.
For both banks to be running rich, it has to be something effecting the entire engine in general (ie- not a spark plug/wire for example). I would immediately suspect the MAF and it's integrated temperature sensor. If it is reading the wrong air volume or the wrong temperature, the fuel mixture will be thrown way off. I would pull the MAF, clean it, and try again. If you can check it's actual readings with a scangauge, tuner, or other datalogging device, that would be great.
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10-08-2011, 05:55 AM
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ford dealer parts guy
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Re: Need help with codes P1132 P1152 P0172 P0175
Quote:
Originally Posted by FireRanger
Well I would work on things that would cause the engine to run rich before you spend hundreds of dollars on sensors that are most likely working fine.
For both banks to be running rich, it has to be something effecting the entire engine in general (ie- not a spark plug/wire for example). I would immediately suspect the MAF and it's integrated temperature sensor. If it is reading the wrong air volume or the wrong temperature, the fuel mixture will be thrown way off. I would pull the MAF, clean it, and try again. If you can check it's actual readings with a scangauge, tuner, or other datalogging device, that would be great.
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could it also be the ECT sensor for the PCM? if its bad it could cause the truck to run rich too couldnt it
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10-08-2011, 06:00 AM
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Blinded by the light
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Re: Need help with codes P1132 P1152 P0172 P0175
Well, it could but not likely I don't think. If the computer thinks the engine isn't warmed up, it runs in "open loop" mode bypassing the sensors and uses pre-set values. If the sensors were being bypassed, it wouldn't be throwing trouble codes about them.
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10-08-2011, 06:00 AM
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ford dealer parts guy
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Re: Need help with codes P1132 P1152 P0172 P0175
Quote:
Originally Posted by FireRanger
Well, it could but not likely I don't think. If the computer thinks the engine isn't warmed up, it runs in "open loop" mode bypassing the sensors and uses pre-set values. If the sensors were being bypassed, it wouldn't be throwing trouble codes about them.
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shit forgot about that part lol
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2021 F150 5.0 Screw
Past:18 F150 2.7, 16 F150 5.0, 14 F150 5.0, 07 F150 5.4, 03 Ranger 4.0
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10-08-2011, 06:38 AM
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Re: Need help with codes P1132 P1152 P0172 P0175
Stupid question, is the MAF the "air flow meter"? Is that the sensor right near the air filter cover? If that's it, I cleaned it last week with brake cleaner. I've got another one sitting in my garage from the engine I pulled off the truck before that. I can clean and try also...
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10-08-2011, 06:44 AM
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ford dealer parts guy
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Re: Need help with codes P1132 P1152 P0172 P0175
Quote:
Originally Posted by MAILMAN
Stupid question, is the MAF the "air flow meter"? Is that the sensor right near the air filter cover? If that's it, I cleaned it last week with brake cleaner. I've got another one sitting in my garage from the engine I pulled off the truck before that. I can clean and try also...
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yep its the sensor on the inlet tube and you prolly destroyed it with the brake cleaner...you need MAF sensor cleaner
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2021 F150 5.0 Screw
Past:18 F150 2.7, 16 F150 5.0, 14 F150 5.0, 07 F150 5.4, 03 Ranger 4.0
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10-08-2011, 07:09 AM
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We'll fix 'er up.
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Re: Need help with codes P1132 P1152 P0172 P0175
ooooh, yea fairly certain the brake cleaner destroyed it. i have a maf sensor that i am almost 100% certain it still works, if you want i can clean it up and send it to ya, they are expensive new ill sell it to ya for 40. that is if the sensor for my 4.0 00 is the same as the sensor for your 03 3.0, will need someone to confirm this
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Last edited by Lee_T413; 10-08-2011 at 07:11 AM.
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10-08-2011, 07:21 AM
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Blinded by the light
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Join Date: Sep 2009
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Re: Need help with codes P1132 P1152 P0172 P0175
Quote:
Originally Posted by MAILMAN
Stupid question, is the MAF the "air flow meter"? Is that the sensor right near the air filter cover? If that's it, I cleaned it last week with brake cleaner. I've got another one sitting in my garage from the engine I pulled off the truck before that. I can clean and try also...
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Try that one, but please don't destroy it with brake cleaner. Don't clean it at all, or use MAF cleaner. Good grief.
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10-08-2011, 07:35 AM
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Learning to use the forums
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Re: Need help with codes P1132 P1152 P0172 P0175
I had read somewhere online to clean it with brake cleaner...didn't know any better. I'll get some MAF cleaner and try the other one I got. THANKS EVERYONE!
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