However, an oxygen sensor is easy to replace on many cars and is usually detailed in the owner's manual. The code usually shows up alone as the computer ignores this problem if it sees a misfire and brings up that code instead. If you know where the sensor is, you only have to unclip the old sensor and replace it with a new one. I thought maybe the lean codes could be from the known exhaust leak but that seems inconsistent with the bank having most trouble. You are missing the software upgrade that most here on this board have had for some time. Originally the key off pressure was up near 55 psi, the I turned the engine over and the pressure was around 45.
You are missing the software upgrade that most here on this board have had for some time. Is it reasonable to suspect that the sensor has failed because it is switching between lean and rich? This example only serves as one example. These concerns would be out of the ordinary circumstances such as customer working on their own vehicle that could have inadvertently set such a code. After revving it was around that range still. Anything else I should do? And his name is Ogilvie, regardless of what his forum handle happens to be.
At first the p0136 code showed up on my 01 V6 Tacoma, so I replaced the rear O2 sensor and the engine light went out. Thanks again for everyone's input and assistance. For some reason the bank two lean isn't as common, and is usually just a pending fault and not a current fault like the bank one is. It'd be a lot easier to get the dealer to check it out if you didn't clear that code. This was on the passenger side, near where the egr was. I had been getting 11 to 12 mpg.
This is done most easily from below the car in the area near the oil filter. The catalyst in the catalytic converter is cracked, clogged, or otherwise damaged. So I expect those two codes. The code has not returned in about 5 drive cycles. There is an updated part number for some 2010-2012 Ford 4.
When it was real cold my truck would somewhat surge when stopping at stoplights. If this is the case, it is used for emissions and not for the calculation of the air fuel ratio. The short terms dropped when I revved the engine up to around 2500 and I could hear a slight Rev when spraying the intake with brake cleaner. If you have a problem with your cat converters clogging, and you end up gutting them even temporarily to avoid engine damage , you may note some horrible gas mileage. Code p0136- O2 sensor malfunction, Bank 1 sensor 2.
P1131 The code tester at advanced did. So I have these 3 returning codes on my 08' Silverado 1500 6. It resets itself off after a couple of days and then a week later it's back on. I let the pressure off the tester and turned the key back on and this time the pressure was getting up to about 30 and then coming to about 25 after starting The gauge could have bad calibration, or I could have a fuel delivery issue. My questions are, which sensor and where is it located on my truck? Next closest one is about 450 miles away.
At times, but rarely, an actual rich running condition could exist that could set this code. Unburned hydrocarbons fuel and oxygen combine, producing carbon dioxide, and nitrogen-oxides recombine, producing inert nitrogen and oxygen, for example. All other ideas about concerns would be purely speculation. The O2 operates the same as an upstream O2, but the data it produces is different. The more oxygen there is the leaner the vehicle is running. Repair as needed and ensure connector is fully seated. If this hasn't been going on too long, good chance simply replacing the O2 sensor will remedy your problem.
An upstream O2 will oscillate rapidly between 0. This is usually caused by an exhaust leak, misfire or badly out of calibration fuel injection system. Any suggestions as to what else I could do to try to narrow this down and avoid taking it into the shop? It had low fuel pressure so changed the fuel pump and fuel filter. When swapping the manifolds, I found out the collector on my y pipe was cracked and plan to drop that down and weld it up when it gets warmer out. My mileage went to 7. But when going around 65 - 70 mph at 2000rpm, and gives full throttle, the truck down shifts to 3000 rpm first and then once more down to 4000 rpm, but there is no torque. This means that the secondary O2 sensor detects that the catalytic converter isn't working as efficiently as it should.
Anytime an O2 sensor is replaced, care should be taken when identifying the correct sensor. It'd be a lot easier to get the dealer to check it out if you didn't clear that code. As far as the cat efficiency being off, that has only came up a couple of times and I haven't quite gotten a chance to figure out anything that happens consistently before that. Aug 08, 2012 P2237 P2196 P2271 P0030 P0171 These are all O2 sensor trouble codes, except P0171 which is a fuel trim code, You have a bad 02 sensor - up stream - Bank 1 Sensor 1. Replacing the sensor would be the last thing to do.