More spark retard after fixing exhaust leaks and trying race gas.

***popo8*** · 08-15-2015, 07:38 PM

I just know when i did my msd cut to lengths in the past I fixed a nisfire issue by re doing all the connections so clearly one or more of my crimps were lacking.

LTXtech.com IS my drug...

**94ndta** · 08-15-2015, 08:34 PM

Originally Posted by popo8

I just know when i did my msd cut to lengths in the past I fixed a nisfire issue by re doing all the connections so clearly one or more of my crimps were lacking.

LTXtech.com IS my drug...

It is possible, but I had no issues with these before the h/c swap.

***popo8*** · 08-15-2015, 10:53 PM

Originally Posted by 94ndta

It is possible, but I had no issues with these before the h/c swap.

Maybe just plugging and unplugging caused some looseness inside the connection.

LTXtech.com IS my drug...

**94ndta** · 08-16-2015, 07:55 AM

Originally Posted by popo8

Maybe just plugging and unplugging caused some looseness inside the connection.

LTXtech.com IS my drug...

Maybe. I was pretty conscious not to pull on the wires when removing them. I don't feel like it has the type of misfire of a bad plug wire, it's not that obviously misfiring if it is. It is something I will consider though.

***popo8*** · 08-16-2015, 09:13 AM

Well Im diagnosing blindly, so trying to cover everythimg that can be ruled out for cheap or free first.

LTXtech.com IS my drug...

**94ndta** · 08-16-2015, 10:44 AM

Originally Posted by popo8

Well Im diagnosing blindly, so trying to cover everythimg that can be ruled out for cheap or free first.

LTXtech.com IS my drug...

I appreciate it. Like I said before, if anyone wants to look at my scans they are more than welcome too.

Im trying to cross as much off of my list before I start throwing parts at it or checking parts that should be new.

***popo8*** · 08-17-2015, 01:24 AM

U know when it comes down to it... its usually the opti. I just hate to blame it first.

LTXtech.com IS my drug...

**94ndta** · 08-20-2015, 09:23 PM

Originally Posted by popo8

U know when it comes down to it... its usually the opti. I just hate to blame it first.

LTXtech.com IS my drug...

If it is, I'm smashing it with a hammer. If a brand new $450 delco opti is bad right out of the box, I'm ls swapping it....and this time.... I mean it!

Plugs in, cleaned the dialectric grease off the coil/opti and used very little on the spark plug boots. The more an more I think of the misfire, the more I chock it up the the plugs/grease.

ordered some Percy seal 4 good gaskets, waiting for those to arrive, then we will see how she goes.

***popo8*** · 08-21-2015, 05:20 AM

Originally Posted by 94ndta

If it is, I'm smashing it with a hammer. If a brand new $450 delco opti is bad right out of the box, I'm ls swapping it....and this time.... I mean it!

Plugs in, cleaned the dialectric grease off the coil/opti and used very little on the spark plug boots. The more an more I think of the misfire, the more I chock it up the the plugs/grease.

ordered some Percy seal 4 good gaskets, waiting for those to arrive, then we will see how she goes.

Good thing ls stuff never malfunctions.

LTXtech.com IS my drug...

**94ndta** · 08-27-2015, 08:36 PM

Well I went through this week fixing all the exhaust leaks. I really didn't know how bad the collectors were leaking. I can hear a lot less of what I thought was valve train noise when I accelerate. I'm sure this was one of the headers leaking. I ended up going with perceys aluminum seal 4 good gaskets, and using permatex copper high temp rtv just incase. I let it set for 24 hours.

It also started fine after being warmed up, but it occasionally did that prior too. I will do more scanning this weekend, fingers crossed. At least I am making improvements.