Help, I'm at my wit's end with my 97 LX protege 1.5L.
It's that common rough idle problem with the protege.
Right now, my car idles very rough, interior vibrates like crazy when I pull to
a stop sign or stop light, with the brakes pressed, and in drive. The RPM
surges up and down to close to 1-1.5k? It gets a bit worse with A/C and
defogger on. If I switch to neutral, vibration goes away.
I have cleaned out EGR, cleaned out throttle body, replaced PCV, changed air
filter, replaced breather tube, changed fuel filter, replaced timing belt,
ac/power steering belt, water pump, mounts, spark plugs.
Yes the mechanic has run me to the ground replacing belts, and mounts, fuel
filter I cleaned the EGR, and throttle body myself. I also cleaned the IAC
valve too.
Most recently, the mechanic said that the TB gasket was on backwards - a bunch
of BS....so he put it back on and put sealant all around it.
Since then, the car still idles rough almost a bit worse. I bought a used MAF,
which actually increased the acceleration/power response for the car a bit. I
also replaced the battery, and cleaned up terminals and ground connections.
However, the idling is still poor.
Recently, the check engine light came on, then went away. The code was P0505.
I have since bought a used throttle body with IAC valve. I already tried
cleaning the exisitng one, but could the IAC just be bad? Should I replace it
with a used one? Are there any other sensors that could be bad?
The car was meticulously serviced and has 98000 miles on it. I'm at the point
where I may want to get rid of it if I can not solve this idling problem.
Do you have any other suggestions? Or anybody in SF Bay area want to buy a 97
Protege - with rough idle - lol! It has new front brakes, and relatively new
tires! Already replaced timing belt and water pump! It just vibrates at stop
signs that's all!
Thanks for your help
Phil
It's that common rough idle problem with the protege.
Right now, my car idles very rough, interior vibrates like crazy when I pull to
a stop sign or stop light, with the brakes pressed, and in drive. The RPM
surges up and down to close to 1-1.5k? It gets a bit worse with A/C and
defogger on. If I switch to neutral, vibration goes away.
I have cleaned out EGR, cleaned out throttle body, replaced PCV, changed air
filter, replaced breather tube, changed fuel filter, replaced timing belt,
ac/power steering belt, water pump, mounts, spark plugs.
Yes the mechanic has run me to the ground replacing belts, and mounts, fuel
filter I cleaned the EGR, and throttle body myself. I also cleaned the IAC
valve too.
Most recently, the mechanic said that the TB gasket was on backwards - a bunch
of BS....so he put it back on and put sealant all around it.
Since then, the car still idles rough almost a bit worse. I bought a used MAF,
which actually increased the acceleration/power response for the car a bit. I
also replaced the battery, and cleaned up terminals and ground connections.
However, the idling is still poor.
Recently, the check engine light came on, then went away. The code was P0505.
I have since bought a used throttle body with IAC valve. I already tried
cleaning the exisitng one, but could the IAC just be bad? Should I replace it
with a used one? Are there any other sensors that could be bad?
The car was meticulously serviced and has 98000 miles on it. I'm at the point
where I may want to get rid of it if I can not solve this idling problem.
Do you have any other suggestions? Or anybody in SF Bay area want to buy a 97
Protege - with rough idle - lol! It has new front brakes, and relatively new
tires! Already replaced timing belt and water pump! It just vibrates at stop
signs that's all!
Thanks for your help
Phil
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