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P0135 Diagnostic Trouble Code Discussion for February 2009

Heated Oxygen Sensor (Bank 1 Sensor 1) Heater Performance

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Trouble Ticket Help Requests for DTC P0135
Help Request Posted
2004 Ford F-250 Super Duty Lariat 6.8L MIL Lamp on VIN: 1FTNX21S94
P0135: B1S1 O2 Heater Circuit Malf. ... All the information I get about its usage is 3rd hand (officer tells fleet maint. guy, maint. guy brings it to me) but my understanding is that this vehicle is used primarely for towing a trailer. Not sure about the size of trailer, but it is large enough ...
February 04, 2009
2003 Jeep Grand Cherokee Laredo 4.0L MIL Lamp on VIN: 1J4GW48S53
P0135: Heated Oxygen Sensor (Bank 1 Sensor 1) Heater Performance. I have scanned this unit and found the front O2 B1/1 does not respond as fast as the rear B2/1. Voltage on both start at 4.98 the rear drops to .05 within about 5sec. The front takes about 1 minute. I have checked for voltage to the heater has 12volts when act...
February 09, 2009
1999 Ford Ranger XL 3.0L Misfire, MIL Lamp on VIN: 1FTYR14V6X
P0135: 02s 11 htr malf. ... almost as if a cyl. was down. It has a new cmp sensor and #1 o2 sensor. But after every test drive it throws a po135 and p1309. All tedst performed checked out good. I was seeing if anyone else has seen this problem before! All inications point to the pcm,...
February 10, 2009