Keeps reading knock sensor codes after changing both sensors
2024年7月31日 · I have changed both my knock sensors all my spark plugs and wires the check engine light goes off and I drove it over 115 miles to reset the not ready codes to get my car inspected once I get it down to one not ready where it’s eligible to get inspected my check engine light comes back on and it reads knock sensor bank 1 or bank 2 not both but one or the other I have changed them both ...
Should I replace O2 sensor? - Car Talk Community
2024年9月28日 · The engine management computer uses the output signals from the O2 sensors to set the optimum air/fuel ratio. The engine will never run correctly with a faulty O2 sensor; however O2 sensors are pretty robust gadgets, so it is possible this is actually a misdiagnosis. Suggest you explain why you or your shop think the O2 sensor is the problem?
Oxygen Sensor was replaced but engine code and ... - Car Talk …
2020年10月23日 · Many months ago I had my oxygen sensors replaced on my car. However, the check engine light keeps coming on with the code for faulty oxygen sensor. The mechanic thinks it says this because of a wiring problem and that I should get the electrical system fixed. Does this sound right? If so, how extensive would the work be? The electrical system in the car seems to work with all other functions ...
2011 Subaru Outback - Oil sensors? - Car Talk Community
2024年12月20日 · Check Engine Light: Replace Catalytic Converter Maintenance/Repairs subaru , engines , lights , catalytic-converters , outback
Car starts & runs great until warm, then sputters and stalls
2023年9月23日 · 1 1/2 years ago at 110k miles, intending the keep this car forever, it was leaking oil (there was oil on the back of the engine that the dealer may have thought was new oil) so I changed the valve cover gasket I also changed all 6 coils, new plugs, and new PCV. Just before that I changed 2 oxygen sensors and cleaned mass air flow, air filter, etc.
Why are there two coolant temp sensors on many vehicles?
2017年5月17日 · Okay, as I’ve previously mentioned, my 1994 F150 had engine issues, and I’ve replaced the engine with a rebuilt unit. In the process of swapping over the sensors, I noticed that there are TWO coolant temp sensors: one by the thermostat, that sends a signal to the dash gauge, and one on the rear of the block, that sends data to the ECU. This seems odd; that Ford would (seemingly) needlessly ...
Why do mechanics, heedlessly, change sensors? - Car Talk …
2009年12月18日 · The code tells the mechanic that the O2 sensor says the car is out of spec, he scratches his head, and slaps in a new set of O2 sensors, and the problem isn’t solved. A couple of minutes with a data logger, and recording the MAF values at idle and at 2500 rpms should provide enough data to let the mechanic know if the MAF sensor is in spec or ...
No bus message, engine won’t fire, or runs rough - Car Talk …
2019年4月14日 · 1999 Dodge 3500 van. When trying to crank, engine turns over, but does not fire. No bus appears in the odometer window. Letting the vehicle sit for a few minutes resolves the problem sometimes. But the engine will rough run very roughly, backfire, and stall. No trouble codes. Planning on replacing the crankshaft position sensor. Might also replace the camshaft position sensor. Am hoping it is ...
Check engine light comes on after I fill up my gas tank
2019年12月11日 · So I got the sensors replaced, but the engine light is still on. It was actually off before he replaced the sensors, then it came on again about an hour or two after I left the shop. Assuming the light is on for the same reason as before . . . P0420 . . . that would mean the conditions were met for once again illuminating the light.
Mazda 6 2013 P2251 - Maintenance/Repairs - Car Talk Community
2015年6月20日 · 37,xxx miles My CEL came on yesterday morning. Got the codes read that morning, P2251. Reset the codes using the scan tool. After work, I got a schematic and visually checked the bank 1 sensor 1. The connections going to and away from the sensor were tight and visually looked good. The sensor downstream also visually looked good. The CEL came back on this morning. I was planning to take it to ...