90 rex with B16. Once the engine completely warms up, ive got a hesitation when I am BARELY on the throttle, just trying to stay at a constant speed. Once you get past a ceratin point, it comes out of it. Car was recently tuned before winter, any idea?

 

spark plugs.

 

it could be a few things like,fuel filter,fuel system,ingintion,timing,vacum leaks..

 

or it could be the thing that mostly causes it which are spark plugs...

 

lol,yep

 

Try checking your o2 sensor, when those are bad they are known to bog your car down and especially trying to keep a steady speed.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by CrRexSiR &raquo;</TD></TR><TR><TD CLASS="quote">90 rex with B16. Once the engine completely warms up, ive got a hesitation when I am BARELY on the throttle, just trying to stay at a constant speed. Once you get past a ceratin point, it comes out of it. Car was recently tuned before winter, any idea?</TD></TR></TABLE>

check your o2 sensor wire. maybe they were wired wrong switch them around see if thats work..

 

just go to the FAQ and see the 7th post. done