Jasonhouse
Member
- :
- 01 Protege LS 2.0 Auto with a/c
Hi, have an '01 Protege LX 2.0 with a bit over 150k miles on it. Put maybe 2-3k miles a year on it for the past couple of years while trying to heal from a serious spinal injury. Just now getting well enough that I'm trying out a PT job, so naturally this when the car needs a repair.
It has had a CEL for several thousand miles for one of the O2 sensors. Since this affects mileage and I barely drive (and am super low budget for now), I didn't really care.
However, a few months ago, the car took on a new behavior, the famous rat-a-tat rattle noise on startup, which also comes with partial throttle at any speed above say 40mph. This included the typical intermittent chugging/sputtering/weakness, at idle and until the car throttles up to say 2000rpms or more, and then sort of 'kicks' in to having what feels more like normal power... Again, I read about how this is usually from the VICS or the combustion optimization feature (I forget the acronym for it) having issues, and isn't good for the car in the long run, but isn't like a dire issue. Since I'm disabled and not working, I couldn't fix it, so I just cut my driving back to necessary trips for like groceries or the doctor...
So then the other day I drove it a mile to the grocery store, and it threw new codes that made the CEL flash, and now the weakness at idle/low rpm is constant, and doesn't go away at higher RPMs. I know a flashing CEL is potentially bad news, so I gently drove the car home on side streets and parked it.
Had a buddy pull the codes, this is what I've got.
P0140 - Oxygen sensor circuit. no activity detected. Bank 1 sensor 2
P0031 - Heated oxygen sensor heater control circuit low. Bank 1 sensor 1
P0037 - Heated oxygen sensor heater control low. Bank 1 sensor 2
P0301 - Cylinder 1 misfire detected.
P0303 - Cylinder 3 misfire detected.
P1569 - Intake manifold runner control circuit low
P0660 - Intake manifold tuning valve control circuit open. Bank 1
All I have done so far is pulled and replaced the plugs, which appeared to have normal wear, and no difference in wear between the 4 cylinders.
I haven't tested any of the ignition wiring yet, but the coils didn't smell burnt out, and a visual check the various wires showed no obvious issues. Coils, wires and plugs were last changed about 40k miles ago. (I have a multimeter)
Any insight from past experience on what it could be? Please help!
It has had a CEL for several thousand miles for one of the O2 sensors. Since this affects mileage and I barely drive (and am super low budget for now), I didn't really care.
However, a few months ago, the car took on a new behavior, the famous rat-a-tat rattle noise on startup, which also comes with partial throttle at any speed above say 40mph. This included the typical intermittent chugging/sputtering/weakness, at idle and until the car throttles up to say 2000rpms or more, and then sort of 'kicks' in to having what feels more like normal power... Again, I read about how this is usually from the VICS or the combustion optimization feature (I forget the acronym for it) having issues, and isn't good for the car in the long run, but isn't like a dire issue. Since I'm disabled and not working, I couldn't fix it, so I just cut my driving back to necessary trips for like groceries or the doctor...
So then the other day I drove it a mile to the grocery store, and it threw new codes that made the CEL flash, and now the weakness at idle/low rpm is constant, and doesn't go away at higher RPMs. I know a flashing CEL is potentially bad news, so I gently drove the car home on side streets and parked it.
Had a buddy pull the codes, this is what I've got.
P0140 - Oxygen sensor circuit. no activity detected. Bank 1 sensor 2
P0031 - Heated oxygen sensor heater control circuit low. Bank 1 sensor 1
P0037 - Heated oxygen sensor heater control low. Bank 1 sensor 2
P0301 - Cylinder 1 misfire detected.
P0303 - Cylinder 3 misfire detected.
P1569 - Intake manifold runner control circuit low
P0660 - Intake manifold tuning valve control circuit open. Bank 1
All I have done so far is pulled and replaced the plugs, which appeared to have normal wear, and no difference in wear between the 4 cylinders.
I haven't tested any of the ignition wiring yet, but the coils didn't smell burnt out, and a visual check the various wires showed no obvious issues. Coils, wires and plugs were last changed about 40k miles ago. (I have a multimeter)
Any insight from past experience on what it could be? Please help!