JBrizzle

my 94 lt1-z falls completely on its face when i punch the gas. throws no codes on tech-2. any ideas?????

the_merv

iTrader: (88)

Make sure you don't have any leaks between the MAF Sensor and the Throttle Body in the Intake setup. If you have the Stock Elbow, make sure the Donkey Dick didn't fall off. Mine did the same thing once, it would barely move.

JBrizzle

runnin vortec alum. intake elbow. all else is sealed tight and has been for about a yr. problem just started. it sux! rides fine till i punch it, then everything just "drops out".

the_merv

iTrader: (88)

It sounds like it's rich as hell, don't know what would cause it besides the Elbow thing..

ellokote5

Sounds to me like it is ignition related, when was the last time you changed the plug wires?

the_merv

iTrader: (88)

Yea.. forgot about that. Check the Coil and stuff like that.

bmccrary

On the dyno, mine wouldnt pull past 5000. Have no idea why. I believe it is just tuning issues. Have you had anything done to it computer wise?

-bryan

the_merv

iTrader: (88)

Could be your Coil, mine did the same thing, it had no guts past 5500RPM..

JBrizzle

yea i work at a gm dealership and i've heard things about the coil as well. other than that, plugs and wires are pretty new and good. no computer mods yet.

little Red Camaro

iTrader: (14)

Mine did that, ran fine until you put your foot in it and then just fell on it's face! Mine was fixed by replacing the Opti....

JBrizzle

well i just ordered a new coil, so we'll see how that works out. if it is opti, i'm thinkin msd distributor. anybody runnin one?

bmccrary

I have had the opti, plugs and wires replaced. I hope mine is just tunning, but we will see. Car runs fine other wise.. and seems to hold well on the street.

-bryan

9formula4

iTrader: (5)

Mine did the same thing but i found mine to be the fuel pump. I got spark and all but the fuel lines weren't priming. it would just turn over and over and over. My brother ended up using my opti on his car so I knew it wasn't that.

little Red Camaro

iTrader: (14)

I bought a MSD opti...working great...but hopefully don't have the problem with the screws backing out like some other's have had!

JBrizzle

yea i did fuel pressure tests multiple times and it only surged when it hit the point of "cutting out on me." my msd coil on there now has been on it for about 4 yrs now, hopefully its just reached its life expectancy. now i'm switching to the hypertech coil : 53,000 volts instead of the 45,000 (msd).

volumebikertom

Just wondering but when you said no codes showed up on the tech 2 at work??? Don't you mean on the tech1? since a 94 is OBD 1, not OBD 2. Sounds like opti though.

blackb4c

tech 2 has adapter for older cars. im putting on the new coil 2nite, let yall know the outcome......hopefully it isnt the opti!

YoungGunLs1

I am guessing it's the Opti...I had the same problem with my 94 z28.

It drove perfect, and then when you wanted to open her up and steped it down, it started hesitating and fell on its face etc..

blackb4c

the p.o.s it still dropping out on me. when yall say opti, do u think it may just be time for a new cap and rotor????? it hasnt been done in a few years.