Okay, what started out as a simple misfire has turned into a friggin' mechanical pergatory. Here's the scoop...
-Drivin' along minding my own business, all of a sudden I have a harsh vibration start. I figure I tossed a wheel weight or something, pull over only to discover it's the motor that's developed a hard miss. I limp home and do some basic trouble shooting, decide I've got bad plug wires because one I had an intermittent break in and the others all had high resistance.
-I rebuild the broken wire, but no change.
-I measure the coil packs and discover they're all out of spec, so I replace them as well as finishing rebuilding the rest of the plug wires. No change.
-Now the car has all new ignition stuffs, plugs, wires, coil packs.
-Just to shotgun parts, I had a set of 24lbs injuctors laying around, so I swapped them in. No change.
-Now the car has new ignition and injectors, plus good fuel pressure.
-I run a compression test, and all cylinders are between 175 and 190psi, the lowest being #3, and the miss is on #5, opposite sides of the motor, go figure.
All this, and the computer is throwing NO CODES. Not even a check engine light for the motor going lean/rich.
So, new ignition, new injectors, good fuel pressure, good compression throughout the motor, no vacuum leaks that I could find and a strong 19 inches at idle, bearing in mind that the car is running on 6-7 cylinders right now since #5 being gone is somehow affecting #6.
So WTF is going on?
-Drivin' along minding my own business, all of a sudden I have a harsh vibration start. I figure I tossed a wheel weight or something, pull over only to discover it's the motor that's developed a hard miss. I limp home and do some basic trouble shooting, decide I've got bad plug wires because one I had an intermittent break in and the others all had high resistance.
-I rebuild the broken wire, but no change.
-I measure the coil packs and discover they're all out of spec, so I replace them as well as finishing rebuilding the rest of the plug wires. No change.
-Now the car has all new ignition stuffs, plugs, wires, coil packs.
-Just to shotgun parts, I had a set of 24lbs injuctors laying around, so I swapped them in. No change.
-Now the car has new ignition and injectors, plus good fuel pressure.
-I run a compression test, and all cylinders are between 175 and 190psi, the lowest being #3, and the miss is on #5, opposite sides of the motor, go figure.
All this, and the computer is throwing NO CODES. Not even a check engine light for the motor going lean/rich.
So, new ignition, new injectors, good fuel pressure, good compression throughout the motor, no vacuum leaks that I could find and a strong 19 inches at idle, bearing in mind that the car is running on 6-7 cylinders right now since #5 being gone is somehow affecting #6.
So WTF is going on?