How do i determine which sensor is causing the check engine light to be on--need to change to have truck inspected in new york state
You need to get an OBD scanner plugged in . auto zone or advance auto or most other parts shops will read computer codes for ya.
SOURCE: Check engine light 2005 Saturn Vue
the scan tool that you are using will not read codes from all of the modules. take the car to a gm dealer to have it checked with a tech2
SOURCE: 2000 chevy silverado z71 check engine light will not go off.
you have to know what the code is that your truck putting out your truck has 4 O2 sensors. the trucks computer is smart and the code will tell you witch one is bad but if you replace just one the next one on the same exhaust pipe will probley go bad so its safe to replace all four. the draw back to replaceing all of them is thay cost about 80 bucks for one ACDelco O2 sensor. It has to be done before it will pass Emissions. not a hard part to change about a 7/8 open end wrench will take it off. have fun.
SOURCE: check engine light on in 2001 subaru outback - car
If the light was flashing when it came on, then it means your engine is misfiring.
A solid light can mean anything from a loose/faulty gas cap to a transmission issue.
This
light comes on when the computer detects a
fault of some sort in its diagnostic tests. If it keeps detecting this
issue, the light will remain on. If the light turns off, then it has
detected that the issue may no longer be present.
In
order to find out what the exact reason was for your light, You need to
have your car computer scanned to retrieve the code that
the computer would have stored when the light triggered. Most garages
will do this free of charge. The code will tell you what may have
caused the light to initially turn on.
Testimonial: "thanka "
SOURCE: 98 Nissan Maxima - Check Engine Light, Knock Sensor
If the car is pinging you will set a knock sensor code.'
This comes from bad gas and running lean., You really need this professionally inspected to rule out the basics. I have seen alot of nissans with the knock sensor code stored but the light is still off.
Fill up the tank with high octane chevron and some techron injector cleaner and clear the light. If it stays off for a couple days then go get it inspected. Even if the code is stored it will still pass as long as the light is still off and the monitors have run.
SOURCE: 2001 dodge durango 4.7liter 4x4 i replaced front
bank 1 sensor 2 is the left downstream sensor (1/2) is located in the exhaust downpipe just after the mini-catalytic convertor, and before the main catalytic convertor. Now the meaning of this is that your not getting any 12+/12- heating on sensor, which means voltage is supplied to heat sensor up. You have a O2 sensor heater relay, but not getting problem with 2/2 sensor tells me you need to check/inspect the wiring for 1/2 sensor, open wiring for 1/2 sensor and inspect
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