My last effort

[Mitsumark]

Frank..Chip has been in and out a few times..All pins are straight and intact..Im smack in the middle of NJ..S.Plainfield 07080..

Lee..Sending u a PM now..

[John Boothby]

I havn't read every post here, but have you done a compression check on the two cylinders that have signs of oil? Maybe it is just a stuck ring or something simple.

It may also just be some oil getting into the exhaust system. You say that it only smokes when warmed up? I would think that if oil was getting into the combustion chamber, it would smoke at start up.

Just think'n.

[FU]

Ok....did you pull the plenum ? Again check for bent pins on the connectors.
I mean no offense here. It's just that something wasn't done properly somewhere. Think about it. The engine was fine before. Go back over what was done to the car. It's an easy job. When it's apart post up.

Don't give up.

These LT5's aren't prone to breakage. Unless you missed a gear or twenty.

OH and one more thing. John B. is right , it is something simple.

[youngrm]

To op, if possible go ahead and have it rebuilt.

I brought a '95 with exactly the same VD's set up you have. Like yours it
Ran fine for a couple months...then problems. Like you a chased all the usual
Suspects with minimal success, proceeding your thought process to the same
Point of getting rid of the car!
Unfortunately for me, "one last drive" resulted in the Big Bang! Block, cams,
Crank all gone...car sitting at Corey Hendersons since...even he can't figure
What happened!
Anyways food for thought before you follow me done THAT road!

[LGAFF]

Shipped the chip, if it works, I will either need it back and I can get one burned or we can trade chips. I have a 91 Vette Doctors 368 I am currently working on and will need a 91 chip

[5ABI VT]

If it were an idle issue would it not affect all the cylinders ? If only 2 cylinders are showing signs of oil I would focus on those 2. Have you changed those plugs yet? Double check the part number etc for heat range? I would swap in some cheap copper plugs and go for a blast for an hour keeping the rpms up and bring her home and shut her off and then pull the plugs when cold to get a better idea on the fouling.

I feel guilty offering to snatch that car from you .. but I hope you get it fixed. My wife is mad enough I bought a second c4 hell Id love to make it 3 !!!

[Mitsumark]

Lee..Your the man.No problem and I will let you know the outcome as I will install it as soon as it arrives...I know Im probably starting to drive some of you crazy by now..The more I tinker with the car the more Im starting to think its not actually burning oil.but washing down the cylinder walls with an overly rich mixture due to something being out of whack..Today I tried to really take notice of the pattern and it seems most of the smoke comes as the car is hunting and feels like its gonna die..My theory is with the idle hunting,the computer senses a stall coming and starts adding more fuel into the mix to keep it going..When it does this I think it dumps so much fuel for a moment that it then washes the oil off the cylinder walls and gets burned out the exhaust hence the Blue smoke..Just to verify for some of the recent questions..Yes..Did compression check..Numbers were in the 250s if I remember on all cylinders..Double and triple checked PCV system and it is working as it should and air tight..Changed spark plugs 3 times with numerous heat ranges..All NGK plugs with 2 of them being recommended by Heibeck..Only pulled the plenum once but made 100% certain I connected the IGN box harness very carefully.It went in smooth without a problem..Replaced plenum gaskets with Jerrys thicker units and checked for leaks afterwords..Non found..Entire vac system is air tight..Car runs exactly the way it did before I pulled the plenum..Just for the record guys,,Im praying that either Lee's chip or my revised Heibeck chip helps me get closer to solving this..I have the towel in my hand and Im about to throw..Gave her a 10 min quick wash today and it made me sick looking at it and imagining selling it..With all the neglect its been getting I for got how pretty the car is..

[LGAFF]

Remember our first conversation about cams and running a chip not set up for it....I started my 90 with cams with a chip not set up for it....could barely drive it. Eyes burning from fuel, etc

[efnfast]

I'm kinda proud of the guys on this forum.
I'm no expert, but I believe this is going to turn out to be something simple.
Somebody could steal this car for 10K, fix it for nothing, and sell it for 20.
Hang in there Mark.

[Paul Workman]

Ah, boy. I know how you feel. Been there a couple times at different times myself! But, as Pete told me, once it is back the way you want it and you whack it, you'll forget all the frustration and fall in love all over again. DAYAM IF HE WASN'T RIGHT (as he usually is)