About a week ago, I get the "Service Engine Soon" light on my 2000 Saturn SL1. I got a simple code reader and got the code "P0301" = Cylinder #1 Misfire.
From minor research, most say it could be the intake manifold gasket. To test this I sprayed brake clean around the manifold and head around #1 and #2 and the idle did not change.
It does, however, at idle sounds like it is "putt putt'ing". It idles around 800rpm when parked and gets to around 1300rpm when driving and stopping at a light.
In Jan 2012 I did change the spark plugs/wires, thermostat and ETCS.
What could be causing this code to come on or how can I go about testing to figure out what it could be?
Is it OK to be driving the car like this?
have the same problem?
Thursday, April 5th, 2012 AT 1:40 PM