round 1 https://www.thirdgen.org/techbb2/sho...hreadid=330051

Checked wires last night, no lightening storm.
Checked cap this am, still good
Changed the oil today(been needing to for a month)
Checked left front plug. while not perfect, I have pulled worse from running fine engines.
No engine codes... YET
I installed new plugs, they were carbon up
Spark is blue


More diagnois:
Swapped back to brand new oem coil, ran worse
fuel pressure off=40, running 36'ish, holds when turned off
MAJOR VACCUM LEAK!!!
Now knocking from #1 rocker area (always thought that was my headers loose)


So tommorow I get to rip the top half of the engine apart

 

I hope you realize that the warranty on this engine has since expired

 

I thought it came with a 3year/36000 mile bumper to bumper warranty

 

Exhaust valve seals

look for a thread here inthe V6 section about them by 614street
dude with the blower on a 2.8 s10
[Allwaays wondered what happened to him?]

He posted some killer info about why not to use stock stuff.

 

I didnt use stock valve seals, and in fact I have them on both intake and exhaust.

I'm not smoking oil, I'm running way to rich some how.

 

see this one I've been fighting with for a year now with my cutlass does it when cold and when heated up and only been off for about 10mins nice good poof of smoke and then fine.......let it idle for like 15 minutes and it just develups a randum miss-fire

 

Black smoke is rich and gray/blueish smoke is oil. Does it smell like smoke? Might be steam, which is naturally generated by an engine, it's just that older engines don't do it as much.

I know that you said you know it's not oil, but how? Just because everything is new doesn't mean it's not leaking.

I can't remember if you said or not, but does it smoke all the time?

 

The smoke smells like gas. The whole car does.

Its not oil because its white/gray, not blue, doesnt smell like it, and the oil didnt lower in the 5500 miles I didnt change the oil.

It mainlys smokes when you attempt to rev it up.


dadbird, yours sounds like bad injectors, or bad valve seals.

 

update:

intake rocker on #1 has pre-mature worn, was sitting on the rocker at an angle.

between the bottom to pieces of the intake, I dont think was sealled all the way.

Stock rockers going back on with new gaskets. Hopefully this will fix it.

 

ok, update Its still running like ****.

stock rockers back on.
New O2 sensor (yes, old one was freakin nasty)
Checked/reset TPS to .55 closed

I'm lost

BTW, AM91, my new laptop doesnt have the 12 pin plug on the back for the thing to plug into the car. Do they make a USB version, or can I get an adapter and make this 24'ish pin port work?

 

disconnect your evap cannister and see if it makes any diff.

also check for that wonderful fuel sucked out of the fpr vacuum tube.