Okay I am ready to pull my hair out the little I have left.
I have a rough/lumpy idle on my 97 LX 1.5 manual trans. The car sounds like an old tractor at idle.I have been chasing this for 3 or 4 months. The car runs great down the road. Gas mileage has dropped to around 32 used to be 36. I have changed a bunch of parts off of junkyard cars with no change at all. I have tested parts per the repair manual and can find nothing bad. I have owned it since 47k miles and it is now at 176K.
Here is a list of what I have changed or replaced.
Checked Fuel Pressure
Checked Fuel Pressure Regulator
Changed Fuel Injectors and replaced seals
Replaced fuel filter
Changed throttle body and IAC valve
Changed EGR valve
Cleaned intake and EGR system
Changed distributor
Checked spark plug wires
Replaced spark plugs
Replaced PCV valve
Checked exhaust system to include catalytic converter
I have a rough/lumpy idle on my 97 LX 1.5 manual trans. The car sounds like an old tractor at idle.I have been chasing this for 3 or 4 months. The car runs great down the road. Gas mileage has dropped to around 32 used to be 36. I have changed a bunch of parts off of junkyard cars with no change at all. I have tested parts per the repair manual and can find nothing bad. I have owned it since 47k miles and it is now at 176K.
Here is a list of what I have changed or replaced.
Checked Fuel Pressure
Checked Fuel Pressure Regulator
Changed Fuel Injectors and replaced seals
Replaced fuel filter
Changed throttle body and IAC valve
Changed EGR valve
Cleaned intake and EGR system
Changed distributor
Checked spark plug wires
Replaced spark plugs
Replaced PCV valve
Checked exhaust system to include catalytic converter
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