cicch95

Oh come on now......I was hoping to have the whole job done in 10 minutes just like the Chevelle! :D Yeah, it sure looks like a nightmare in there. Not something I am looking forward to.

Scorp...you haven't done an LT1 YET ...there's a first time for everything!! Come on down! :jester

Best plug / wire choices?

Is the coil change a pain too...or should I swap a new one in while I'm at it. Which coil to use??

Thanks for all the help guys. I appreciate it! :cheers:

-Rick





[Modified by cicch95, 11:08 PM 10/19/2003]

KyleBst264

Have alot of time and patience, take your time and don't get frustrated.
Having a couple beers while doing the job helps too. :cheers:

I also agree changing plugs, wires and maybe fuel filter first all cheap stuff first. Those things could potentially be the problem as well. Then move onto looking into bigger things if that doesn't work. (4 letter word)

cicch95

Ahhhh yes....the beers will be flowing for this one!! :lol:

-Rick

Goody

Yeah, expect it to take a llllloooooonnnnnngggggg time your first time. Hope you got skinny arms. The plugs aren't the issue, it is getting those damn wires onto the opti.

Replace ONE wire at a time to avoid confusion.
Use the dielectric grease in the boots, just don't get it on the tips or on the plug connections since it inhibits electron flow.
Be careful around the wire looms as they are likely fragile and easy to break.
Be very PATIENT.....have plenty of time so you aren't rushed.

:banghead: :banghead: :banghead:

Atok

90% sure it's not your Opti (but there's a chance)....90% sure you need plugs and wires. I've seen this on a couple of LT-1's now, including mine. Identical symptoms. Stick a new, properly gapped set of NGK TR-55s in and try it.

:cheers:

cicch95

So, what is the proper gap?

-Rick

bogus

With a solid idle, I would have to blame plugs and wires...

Oh, get Taylor wires. They are da bom!

ittlfly

A couple of things...The plugs a on the pass side on the 92 are snap. On the drivers side, some guys pull the center inner fender well (where the ASR box attaches to). About 6 bolts and a wire loom and its out. That will open it up so you can get the plug wires under the compressor. I just pulled the compressor and (4 bolts) and laid it on top. if you remvoe the belt and its tensioner (1 bolt) that will make it a snap. A/C calls for .50 gap.......
On the coil / coil driver, its straight forward. A little tight due to the power steering resv....just lift it off the perch and lay it aside (right side up :D )..and DO NOT REMOVE the special white grease on the mounting plate unless you have some more. Hope this helps. :cheers:

cicch95

Thanks for the tips guys! I really hope this is my probem and not the "XXXX" :mad

-Rick

konroh

had the exact same thing last year, turned out to be the plugs...hopefully it will be the same for you.
:flag

onedef92

I've got a slight miss at idle with my LT1, too. Gonna' drop in a set of TR55 NGK Copper Cores and see if that takes care of it. No problems with WOT or under load near redline like you're describing, though.

My AutoLite platinum plugs have more than 18,000 miles on 'em, so it's probably time for a swap.

bogus

technically, they should not.

low rpm miss indicates carbon tracing in the cap/rotor.

SPD DMN

Check to see if any codes are set. You may have an ignition module going bad as well.

1. Check to make sure the fuel pressure is staying up (the cutting out may be detonation or lack of fuel)
2. Wires
3. Plugs
4. Coil
5. Opti

There are a couple other things that can cause it, but the list above with get 95% of the causes of the problem you describe.

robertpel9

check your email, i can help you pull the plugs and wires and coil, fri night and/or sat morning. We'll get it running like it should then the 91 L98 vert Vs. 92 LT1 vert race can commence LOL :cheers:

cicch95

:nono: Now, now Bob......do you really want to catch the wrath of the might LT1? :lol:

See ya friday! Anyone else out there want to lend a hand and drink some beers?? LOL :cheers:

-Rick

ittlfly

You buy the air ticket and I'll bring the beer. :D

onedef92

So I should replace the cap/rotor, then? Would you go O.E.M. or aftermarket for this?