Check Engine Light Help
03-08-2022, 03:08 PM
#1
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Check Engine Light Help
Hello,
I'm having trouble with my 2003 Honda Civic EX. I'm trying to fix the codes P0300-P03004 and P1259, and I've changed the spark plugs, ignition coils, fuel injectors, fuel pump, as well as oil and oil filter, but no use. I don't want to quickly take the car to the mechanic if the problem might be a small one. Can anyone help? I'm a bit new to this so it might take me a while to reply.
I'm having trouble with my 2003 Honda Civic EX. I'm trying to fix the codes P0300-P03004 and P1259, and I've changed the spark plugs, ignition coils, fuel injectors, fuel pump, as well as oil and oil filter, but no use. I don't want to quickly take the car to the mechanic if the problem might be a small one. Can anyone help? I'm a bit new to this so it might take me a while to reply.
03-09-2022, 05:50 AM
#2
Honda-Tech Member
Re: Check Engine Light Help
These engines prefer the OEM NGK spark plugs. What plugs did you put in?
P1259 (it looks for a certain PSI of oil pressure) can be caused by:
P1259 (it looks for a certain PSI of oil pressure) can be caused by:
- low engine oil
- bad dirty engine oil
- clogged screens in the VTEC solenoid valve causing low oil pressure
- bad VTEC solenoid valve or short in the circuit
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