My monte is dead :(
According to RockAuto, looks like it could be AC Delco part number AFS109.
It's hard to say what caused the mis-fire issue. I believe you put new plugs in. In theory that should rule out a failed plug, but I would NOT over look it.
Make sure the plug wire is TIGHT and clipped on. I've seen some wires "push off" a plug or coil.
Make sure the injector is seated all the way and it's connector is on all the way.
Also does not hurt to check for vacuum leaks.
If those all check out, I'd replace the failed O2 before going crazy.
It's hard to say what caused the mis-fire issue. I believe you put new plugs in. In theory that should rule out a failed plug, but I would NOT over look it.
Make sure the plug wire is TIGHT and clipped on. I've seen some wires "push off" a plug or coil.
Make sure the injector is seated all the way and it's connector is on all the way.
Also does not hurt to check for vacuum leaks.
If those all check out, I'd replace the failed O2 before going crazy.
AFS109 looks right to me.
Links to what I purchased last year.
ACDelco AFS109 Oxygen Sensor : Amazon.com : Automotive
Lisle 20200 Thread Chaser : Amazon.com : Automotive
Lisle 12100 Oxygen Sensor Socket : Amazon.com : Automotive
Do the o2 sensor first. Do you have any stock wires on you?
Links to what I purchased last year.
ACDelco AFS109 Oxygen Sensor : Amazon.com : Automotive
Lisle 20200 Thread Chaser : Amazon.com : Automotive
Lisle 12100 Oxygen Sensor Socket : Amazon.com : Automotive
Do the o2 sensor first. Do you have any stock wires on you?
im also going to get ac delco wires, these zzp wires feel loose on the plugs
. and yes i put new ac delco plugs in jason unfortunately i left my stock wires on the old motor mike
lol they were still good too
so im ordering from rockauto, there's two ac delco wiresets, which should i get?
After the wires have been installed/removed a couple of times the connectors can spread so they don't fit snuggly when pushed onto the plugs. You can carefully squeeze them back together with a pliers to obtain a better fit. I suggest wrapping the jaws of the pliers with some tape though so you don't accidently cut the boot with a sharp edge.
After the wires have been installed/removed a couple of times the connectors can spread so they don't fit snuggly when pushed onto the plugs. You can carefully squeeze them back together with a pliers to obtain a better fit. I suggest wrapping the jaws of the pliers with some tape though so you don't accidently cut the boot with a sharp edge. 

I've run across that a few times. The tips of spark plugs vary in diameter with each manufacturer so sometimes you just can't get a good fit.
If you don't want to wait having a set of AC Delco wires shipped to you have a look at the Belden Premium wires sold at NAPA. Belden is a major supplier of wiring (including spark plug wires) for OE production and top shelf when it comes to quality.
If you don't want to wait having a set of AC Delco wires shipped to you have a look at the Belden Premium wires sold at NAPA. Belden is a major supplier of wiring (including spark plug wires) for OE production and top shelf when it comes to quality.
I've run across that a few times. The tips of spark plugs vary in diameter with each manufacturer so sometimes you just can't get a good fit.
If you don't want to wait having a set of AC Delco wires shipped to you have a look at the Belden Premium wires sold at NAPA. Belden is a major supplier of wiring (including spark plug wires) for OE production and top shelf when it comes to quality.
If you don't want to wait having a set of AC Delco wires shipped to you have a look at the Belden Premium wires sold at NAPA. Belden is a major supplier of wiring (including spark plug wires) for OE production and top shelf when it comes to quality.
i did happen to have 3 ac delco wires laying around from this motor lol
i replaced the #6 zzp wire with the stock one and sure nuff did fix my misfire code!!!!
runs like a beast now!! haha
There's also a minor squeeking on cold start from one of my pullies
also my ac compressor wont kick in, it got wet from sitting outside... could it be bad from that? im going to refill it with refrigerant first, hopefully i wont need a new compressor
oh and i forgot to mention, my trans shifts sooo smooth now!!
haha its awesome since i saved around $500 from buying another used trans
haha its awesome since i saved around $500 from buying another used trans
The compressor doesn't spin, but you need to refill?
The compressor won't work when it is low on freon to begin with. The freon has oil in it, without that it's a safety precaution not to spin.
Who knew those wires would have given you trouble...
The compressor won't work when it is low on freon to begin with. The freon has oil in it, without that it's a safety precaution not to spin.
Who knew those wires would have given you trouble...
I'm going to get it checked out and hopefully it's just low on freonSame thing happened on my silver monte... The compressor wouldn't come on so I added a can of freon and it worked
haha Lol as for the wires I guess they're garbage :P I didn't pay a whole lot for them anyways
Joined: Apr 2010
Posts: 12,601
From: Mentor, Ohio
Loose wires, nice.... Well, that's an easy fix 
HEY, that sqeal you mentioned, before spraying anything or going nuts, here's MY recommendation:
- Engine off (obviously) remove the belt
- Spin each pully by hand
- check for play in the pulley
- If no noise, play or anything perceived as abnormal, check the condition of the o-ring where the PCV sits. I know on the S2 UIM, I've read of people who had a noise that resembled a bad alternator pulley (internal bushing) and found it to be a missing or damaged seal on the PCV.
So far, I think this rig is sounding like a winner. HECK you can DRIVE it now!!!
Frank, I think you need to make travel plans for next June!!! That ride HAS to come up to the GM Nationals in Carlisle!!

HEY, that sqeal you mentioned, before spraying anything or going nuts, here's MY recommendation:
- Engine off (obviously) remove the belt
- Spin each pully by hand
- check for play in the pulley
- If no noise, play or anything perceived as abnormal, check the condition of the o-ring where the PCV sits. I know on the S2 UIM, I've read of people who had a noise that resembled a bad alternator pulley (internal bushing) and found it to be a missing or damaged seal on the PCV.
So far, I think this rig is sounding like a winner. HECK you can DRIVE it now!!!
Frank, I think you need to make travel plans for next June!!! That ride HAS to come up to the GM Nationals in Carlisle!!
















