Extreme Rich problem causing missing 85 corvette advice?
Last week I drove it home to change the oil. After changing the oil I took compressed air and blew the engine off because it's been quite dry around here. After doing that I started it up to check oil pressure which was fine. Yet soon as I started the extreme rich problem started. It blows a combination of blue/black/Gray smoke constantly and misses. What I have done is as follows;
Compression check on all the cylinders which was even 235 psi on all the motor is new with 1400 miles
I have a dmm and have ohms all the spark plug wires which were in range going by the spec of 1000 ohms per foot
I have checked fuel pressure which is 42 psi, exactly what I set it a month ago
I checked the timing which is 10*, hasn't changed, I checked it with esc unhooked
I also changed the spark plugs to eliminate the possibility
I have checked the resistance of the injectors which are stock 85s they all spec 16-16.5 ohm, admitable I forgot the scale on my meter I was using
I have a OTC scanner, my dad was a previous mechanic and the data looks normal, and have no trouble codes.
I have had the valve covers off to check for broken valvesprings and valvetrain which is all fine.
I have checked all vacuum lines, but will be checking them again
Any advice is appreciated thanks guys

 

What usually happens to me when things like this happen is its something I mistakenly knocked loose somehow and overlook it at first.If it just started suddenly after you blew off the engine or did some other work,it almost has to be something simple you are overlooking.With me I usually end up feeling kinda dumb when I figure it out.
I would check all the connections to my sensors. maf,cts,iac,tps,injectors,ETC.Make sure you didnt crimp any wires between the valve covers and heads when you had them off.Oh,and welcome to TGO.You might also try the corvette forums.Good luck.

 

I tend to agree, because it all started after blowing it off. I've posted on corvette forum also. I appreciate the help and I will keep trying. Thanks

 

Mine was having the same problem with missing and sputtering after replacing my fuel injectors and TPS. Of all things...I forgot a tiny little vacuum line off the EGR hidden under the intake; and didn't even realize the TPS was adjustable...there was not even an instruction sheet with the new one.
Runs like a dream now....

 

just because the injectors ohm out ok doesn't mean that they do not leak. Run the car for a couple of minutes then pull the plugs, if you have wet cylinders you have leaky injectors. Check all of your sensors, and also check the diaphragm on your regulator.