ok os i recently tuned my car i had a local guy do it and he has done alot of tunes for alot of my friends with hp tuners we tuned it and it ran better then ever btu when i hooked my 02 sensors back up it runs great except at idle sometimes and only sometime ill be sitting at a light and it will rev up and down like 4 times then die and the oil pressuse gouse up and down like waa.....waa.....waa really slow like it has a monstorous cam in it but it doesnt i preplaced one 02 sensor and noticed the wires are our of the back of it i think tht other 02 sensor is bad if so would this cause this idle problem

 

bad o2 sensors can make your car run like dog ****... are you throwing any codes??

 

Start diagnosing it by pulling codes or pending codes....... Tech II, Snap on etc....will read pending codes.

 

could be o2 sensor or it could be bad idle air control solinoid or from the tune. but the oil psi guage should not do that

 

the codes say 02 sensors os im goign to try tht first but when i clear the codes it runs fine until i get on it then it idles bad and throws the code which leads me to belive it is the 02 sensors anyone got any extensions lol

 

thnaks for the help

 

it sounds like you may have several issues going in...
if its not throwing codes... then its probably not a hardware issue...
I would guess at a half ***/crap tune
if you dont tune everything in the tune, you can get weird things happening on different days
theres a lot of variables...and it only takes one to throw the whole tune into a tailspin on any given day

 

Buy the vette o2's, if you buy these then you don't have to have extensions. Good luck

 

thanks guys