Car shaking after hooking up JB4

[Lynix]

• Did you separate the coil packs?
• Did you remove the intake manifold to to the plugs?
• Did you torque the spark plugs properly?
• What did you gap the plugs at?
• Did you ensure that the connections are plugged in correctly?
• Did you open the JB4 enclosure? If so, any pinched wires/chipsets or did you get it closed back up nicely?

edit: I see you bought a used one....that adds another layer of questions...

Seems like I’m getting MAP code errors and possibly some sensor is messed up? I’ve check all the connections that the JB4 uses and I don’t know what’s messed up

 

[Lynix]

do these power pack wires look right? Is it possible we didn’t put them back right and switched the wires? That would explain the 2 cylinder misfires

 

[Lynix]

Holy f*ck I think that was the issue.

 

[sym]

Yeah. I think you had those two cylinder coil packs swapped.

That's generally why I only do one plug/coil at a time. If you gap your spark plugs before you install the set it doesn't take long.

I doubt you hurt anything either. Lesson learned.