Need some fine tuning on my SHO

[masterfreak]

Hey all,

Been running my SHO since September and have since done the front 60k. Gaskets were leaking and I decided it was time to do something. New intake gaskets, valve cover gaskets, spark plugs, wires, even fixed the few vaccuum lines i broke in the process. Well now I am down to the last little details and would love your help.

I have not been blessed with past SHOs and havent even seen one until mine floated around. I am not quite sure how well it could run, and if so, what it will take to get it there. Mechanic and I have noticed a misfire and can tell it probably can have a little bit more uumph.

Will be changing out the ignition coil soon as well as installing some new battery cables.

As of right now the engine codes are KOER- 116 & 136 KOEO 111 (This might be because of the loose battery cables and me occasionally putting them back firmly on the terminals)

 

[rubydist]

111. is all clear.
116 does not appear on my list of SHO codes
136 is lean on left bank

lean on one bank is most often due to a oxy sensor being bad, but given your description it might be due to a vacuum leak affecting only the front bank - so I would have a hard look for a vacuum leak and then change the oxy sensor if I found no leaks.

I would not change the coil pack unless you have some solid indication of a problem with the coil, as most aftermarket SHO coils are not as good as 20-year old factory ones.

 

[masterfreak]

There is definitley a misfire. Ran codes again and did cylinder test, confirming a weakness in cylinder 2. I will check and see if its worth it to replace some of those long hard vac lines. I used a piece of wire to hold in those battery cables for now and will run codes as soon as I put some miles on it.

I was really hoping someone nearby could meet me at one time or another to really get a good critique. I am in the area of some here so let me know.

 

[rubydist]

Since #2 is the middle rear cylinder, and since your lean code is on the front bank, things are less clear now... I would still look very hard for a vacuum leak, and I would swap around a couple of the plugs/plug wires to make sure that the new plug or wire on #2 is not part of the problem. (Those of us that have been around a while have seen bad plugs and bad wires right out of the box on occasion.)

Then I would reset codes and drive it a few days to see what codes pop up.