Hey all. I'm in the process of looking into a persistent CEL that appeared to be related to outside temps (usually appeared under 40 and went away over 40) but now I am getting is consistently and am observing significant misfires (car shaking side to side on cold start). The misfire usually clears up after about 30 seconds and the engine smooths out.
I checked the codes with Torque and found P0171 - Too lean bank 1, P0300 - random/mult misfire & P0014 - 'B' Camshaft Position - Timing Over-Advanced or System Performance (Bank 1). I have done the camshaft solenoid replacement ~ 1.5 year ago. I also did a spark plug change, a short mileage oil change with Seafoam to try to clean out some much last summer and cleaned the TB and MAF at the same time. Incidentally, when I drained the oil I only pulled out about 4 quarts. Change prior to my effort was done by my usual shop when I had the car inspected.
I have a new coil pack and will be doing the swap one at a time method to attempt to isolate a bad coil pack. I'll also do a TB clean again if it warrants it.
My question is, based on my seeing and feeling the car physically shake on a start, does that point to something more significant than just a single bad coil pack?
TIA.
I checked the codes with Torque and found P0171 - Too lean bank 1, P0300 - random/mult misfire & P0014 - 'B' Camshaft Position - Timing Over-Advanced or System Performance (Bank 1). I have done the camshaft solenoid replacement ~ 1.5 year ago. I also did a spark plug change, a short mileage oil change with Seafoam to try to clean out some much last summer and cleaned the TB and MAF at the same time. Incidentally, when I drained the oil I only pulled out about 4 quarts. Change prior to my effort was done by my usual shop when I had the car inspected.
I have a new coil pack and will be doing the swap one at a time method to attempt to isolate a bad coil pack. I'll also do a TB clean again if it warrants it.
My question is, based on my seeing and feeling the car physically shake on a start, does that point to something more significant than just a single bad coil pack?
TIA.