No power to coilpack

[Mike Hawryszkow]

hi, my name is Mike & I have a 2002 Carrera 2. I have been getting a rough Idle & misfire code for cyl #4. I have swapped plugs, coilpacks, & even the injectors w/no improvement. I finally left the coilpack unplugged & the car ran just the same as when plugged in. I have continuity w/the main wiring harness plug. Any suggestions on how to check the coilpack plug?

[Loren]

hi, my name is Mike & I have a 2002 Carrera 2. I have been getting a rough Idle & misfire code for cyl #4. I have swapped plugs, coilpacks, & even the injectors w/no improvement. I finally left the coilpack unplugged & the car ran just the same as when plugged in. I have continuity w/the main wiring harness plug. Any suggestions on how to check the coilpack plug?

:welcome:

Please post all of your fault codes - just so we caqn be sure what we are chasing.

Yes, one cylinder only usually means check the electrical connector, the coil pack (swap with another cylinder and see if it follow the coil pack), and spark plug (same test).

I have removed your second post ont eh same subject - please do not double post or cross-post.

[Mike Hawryszkow]

hi, my name is Mike & I have a 2002 Carrera 2. I have been getting a rough Idle & misfire code for cyl #4. I have swapped plugs, coilpacks, & even the injectors w/no improvement. I finally left the coilpack unplugged & the car ran just the same as when plugged in. I have continuity w/the main wiring harness plug. Any suggestions on how to check the coilpack plug?

:welcome:

Please post all of your fault codes - just so we caqn be sure what we are chasing.

Yes, one cylinder only usually means check the electrical connector, the coil pack (swap with another cylinder and see if it follow the coil pack), and spark plug (same test).

I have removed your second post ont eh same subject - please do not double post or cross-post.

I am repeatedly getting just the p0304. I'll clear it & after about 45 sec. back it comes. It has not followed the plug or the coilpack after the swap. That's what led me to check the engine w/the lead disconnected. No difference in operation or time to trigger code.