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ok got a friend to pull some codes and it reads
P0171
p0174
p0300

i know the two are running lean... the other i read has something to do with random misfires. I'm going to change the plug and wires tomorrow. that should clear that up but what about the other codes?? any suggestions of how to fix those up???

plus i was taking a peliminary look under the hood today and noticed the 2 black hoses that are hooked up to the UIM, and one of them seems to be cracked right where it connects to the IM. Like right off.... could that be the cause of any of these codes?? is it easy to replace?? i took a quick look and couldn't really figure how to do it.

thanks in advance.


1997 T-Red Contour V-6 MTX It HaS BeGuN!!!!!!!!!!!
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Originally posted by trujap:
ok got a friend to pull some codes and it reads
P0171
p0174
p0300

i know the two are running lean... the other i read has something to do with random misfires. I'm going to change the plug and wires tomorrow. that should clear that up but what about the other codes?? any suggestions of how to fix those up???

plus i was taking a peliminary look under the hood today and noticed the 2 black hoses that are hooked up to the UIM, and one of them seems to be cracked right where it connects to the IM. Like right off.... could that be the cause of any of these codes?? is it easy to replace?? i took a quick look and couldn't really figure how to do it.

thanks in advance.



You hit it on the nail.

P0171 and P0174 probably due to the cracked hose. And the P0300 is probably due to the spark plugs or wires.

Read this.
http://www.contour.org/ubbthreads/showflat.php?Cat=&Board=v6maint&Number=931756&Forum=v6maint&Words=UIM%20aide&Match=And&Searchpage=1&Limit=25&Old=allposts&Main=931756&Search=true#Post931756
and this
http://www.contour.org/ubbthreads/showflat.php?Cat=&Board=v6maint&Number=977697&Forum=v6maint&Words=derk&Match=Entire%20Phrase&Searchpage=0&Limit=2500&Old=allposts&Main=977697&Search=true#Post977697

Last edited by Tony2005; 03/27/06 02:49 AM.

"Always do the cheap and easy ones first." 1996 V6 ATX 96K miles
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thanks that took care of those codes but now i have an issue with a p0161. i already used the search and found out that it's a o2 sensor. now which one is it?

thanks


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Quote:

iagnostic Trouble Codes (DTCs) P0135 P0141, P0155 and P0161 indicate a short to ground, open, or short to VPWR in the HO2S heater circuit.

DTC/HO2S Reference List:

DTC P0135 = HO2S HTR-11

DTC P0141 = HO2S HTR-12

DTC P0155 = HO2S HTR-21

DTC P0161 = HO2S HTR-22

Possible causes:

-- Shorts to VPWR in harness or HO2S.

-- Water in connectors.

-- Cut or pulled wires.

-- Disconnected wiring.

-- Open VPWR circuit.

-- Open GND circuit.

-- Low battery voltage.

-- Corrosion or poor mating terminals.

-- Damaged HO2S heater.

-- Damaged PCM.

l NOTE:
On some applications, a vehicle hoist is required to access the HO2S harness.

Visually inspect the HO2S circuit for exposed wiring, contamination, corrosion and proper assembly.

l Were any concerns found during the visual inspection?

Yes
REPAIR any concerns found in the visual inspection. COMPLETE PCM Reset to clear DTCs. RESTORE vehicle. RERUN �«Quick Test�».

No
GO to �«H31�».




Downstream sensor front bank. Inspect the connector for corrosion/damage, etc. Test heater element with an ohmmeter for failure.

Steve


98 Contour SE Sport 2.5 Duratec ATX The wifey's car 89 Taurus SHO - 246K miles 94 SHO ATX - 190K 1997 F-150 5.4L ATX - The Workhorse 150K. ANY THREAD WITH "OMG" or "WTF" ETC IN THE TITLE WILL BE IGNORED!
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Originally posted by trujap:
thanks that took care of those codes but now i have an issue with a p0161. i already used the search and found out that it's a o2 sensor. now which one is it?

thanks



Bank 2 Lower O2 sensor
On this 2-D picture, ignore the red box and arrow, the Bank 2 Lower is the sensor on the right of the pre-cat. The arrow is pointing to the Bank 2 pre-cat
Originally posted by chongo:


"Always do the cheap and easy ones first." 1996 V6 ATX 96K miles

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