I have to let you know what I already did to try to solve my problem 1 ) I change the oxygene sensor 2 ) the fuel filter 3 ) the spark plugs 4 ) Clean the compression chamber with a product 5 ) all vacuum were checked 6 ) air filter was changed 7 I change 3 times the coil pack
I don't think that the coil pack could be deffective 3 times in a row
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Most 4 cylinder have a firing order of 1-3-4-2. Your is the same . The distributor rotates clockwise.
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Try moving the coil pack from cylinder 1 to another cylinder (swap locations) and see if the same code comes up. If code is different, then coil pack is bad. Other reasons for miss; bad injector, poor compression. Also, I know you changed plugs already, but always use AC Delco 43-103 plugs on this vehicle.
Hello morris_valen: My name is Roger and I can help. The fire order is 1-3-7-2-6-5-4-8. Number 8 cylinder is the rear plug on the drivers side. The cylinders run front to back on the passenger side as 1-2-3-4- and on the opposite side front to back 5-6-7-8.
Should you need further help please just ask. Please rate this answer as that way I know the answer was helpful. Thank You for using Fix Ya. Roger
Hello jon...here is your firing order...Number 1 cylinder being on the left bank as you face the engine
1994 Pontiac Grand AM 3.1 liter V-6 VIN "M" Good luck...i hope this helps, please rate me a fixya.