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the check engine lite is on the computer indicates code p491 which im told is the right bank emission sensor the car runs fine. ive put 300 miles on in 8 months. should i be worried?if so how do i fixthe check engine lite is on the computer indicates code p491 which im told is the right bank emission sensor the car runs fine. ive put 300 miles on in 8 months. should i be worried?if so how do i fix
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Check engine lite
Ron, there should be a code if engine light is on,you can have a code stored without a engine light, but not possible to have a engine light without a code.
I am pretty sure, what ever code reader or scan tool you are using, is either faulty or not up to the job. Try a quality scanner, there will be a code.
If the lite stays on, engine running, you need to check it out. From here I can't tell if it means, it's time to change oil and filter or something else? Check all you fluids. Check for applicable trouble codes. If your obd2, you need an obd2 code reader to check codes, yourself. Some of the national brand autostores will check codes for free.
Could be a spark plug or fuel injector. Replace the spark plug first because it's cheaper. Is the car making any strange noises or doing anything unusual?
service engine light------scan for codes
brake light and antilock brake light ----abs problem scan for codes
change oil light ----- change oil and reset system light
u have a computer controlled sensor working or reading out of normal range, need to go get a computer scan of failure codes, make sure u write them down if any transmission codes r present repair first engine codes then trans. codes
p0440-Evaporator Emissions Control Malfunction. P0522- Engine Oil pressure low. Replace the Gas cap and double check your engine oil level to make sure your not low. Reset the computer and see if the codes return. If your oil level is good when you check it you may have a problem with your oil pump.
Sometimes disconnecting the battery for a few minutes will reset the check engine light. Make sure you have the correct radio code before doing this or your radio will not work after disconnecting the battery.
check engine lite on am told code491 what means code and hhow do i fix
the check engine lite is on the computer indicates code p491 which im told is the right bank emission sensor the car runs fine. ive put 300 miles on in 8 months. should i be worried?if so how do i fix
3000 miles sorry
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