Number54

I STFA but everyone who has my code also has a bunch of others.

I got a *single* code today: "16684 random/multiple cylinder misfire".

My plan is to swap out the plugs because mine are old, and I have a set of new ones sitting around.

But I'm wondering why I'd get multiple misfires. I figure one plug will go bad first, and I'd see a misfire in that cylinder only. Is that right? If so, that means plugs, EGTs, and coil packs aren't it. Maybe the MAF? Maybe the FPR?

nyet

it might only be one cyl.

quickaudi:STFA

had a bad plug in 5 that caused the two other cylinders on that bank to misfire

Ari-TwinT3

dunno much about these cars.. just throwing crap out there ..

JoeS4

LOL

DocSlowMiniPerson

Log block 002/015/016 at idle to see what cylinder(s) is/are misfiring before doing anything else...

Number54

good for now. If the code comes back, I'll log as suggested by Doc Slow Mini Person.

BTW, if the plugs aren't the issue, how long would it take for the code to come back? Is it some number of engine starts, miles, time?

Thanks.