1st off, i've done many searches and nothing has came up fitting this. i have a 93 z28 stock, i bypassed to throttle body, no big deal right? the next time i get in my car i notice that every time i try try to accelerate my car stumbles and stumbles and knocks and its sounds horrible, so i connect up the throttle body again, now i just have a little hesitation. is it possible i screwed up the IAT sensor or something? in ses light.

 

You bypassed just the coolant right?

 

did you spill any coolant on the opti?

 

yes it was the coolant only...
has far as the opti, the coolant hose that is on the passenger side is connected to another hose that drops right into the engine....i kind of knocked it loose...the clamp was crap, ened up loosing all my coolant at a gas station... would that have screwed my opti?

 

that was my first impression...

check the opti just to make sure you didnt drip any coolant on the opti

 

and if i did...?

 

You might need a new one.

 

well would it not work at all or just be a gradually thing, all the stumbling has gone away but theres still that hesitation

 

Are all the sensors plugged back in? Have you made sure there are no vacuume leaks in the intake tract?

 

yes on all the sensors, almost positive i put the intake back on right so no leaks... any other ideas?

 

You probably spilled coolant on the opti. The reason the miss went away is because the coolant dried up.

 

Before buying a new opti, you might want to try evaporating as much water/coolant as you can with a hair dryer. If you do need a new opti, you should also invest in a new water pump, timing chain and spark plug wires.

Good luck

 

so since my coolant dried up, does that mean my opti is going to be fine?

 

what year is your car

 

93 z28 stock

Read the first post


st08x, your Opti should be ok, but who really knows with those pieces of junk. How old are the plug wires? If they are all dried up and cracking, the coolant could have messed those up too. Just a guess. How bad is the hesitation?