at about 10-25% throttle she bucks/hesitates/stumbles for a second. it will do it on n off. idle is fine, 25-full throttle is okay. sometimes the check engine light blinks on. was worse before but i changed plugs n wires,it stopped but came back. just got car 1 month ago. has low miles- 65k. its really makin me mad. any suggestions would be appreciated thanx.

 

sounds lean my celica used to do that when i tightened up the AFM to make it pass smog

 

just went thru inspection passed emissions w flyin colors. it does it around 2-3500 rpm while drivin, if i rev at idle it is fine at any rpm. i was thinkin maybe tps. i dont know these cars real well.....audis are my specialty yo boostin all day every

 

just went thru inspection passed emissions w flyin colors. it does it around 2-3500 rpm while drivin, if i rev at idle it is fine at any rpm. i was thinkin maybe tps. i dont know these cars real well.....audis are my specialty yo boostin all day every day

 

check tps adjustment, if it checks out then measure the tps voltage at the ecu while driving, look for any sudden drops in time to the stumbles. Was the cause of my hesitation anyway.

 

did not think of that def. check the tps. it could be causing it the tps could be not giving it enough fuel. check your AF ratio if possible

 

i unplugged the tps and ran it for a bit. it ran pretty smooth. no hesitating.

 

then adjust the tps, and if it's still no good, replace it.

 

how do you adjust the tps? is the tps goin bad a common problem?

 

search, and yes - reasonably.

 

Check codes causing engine light to come on:
https://www.rx7club.com/forum/showth...hreadid=176590

 

went to work dis mornin, drove okay. came home and it was doin it a bit. last nite late went cruisin, smoked a mustang 5.0 gt, put the cruise on and it bucked twice in 50 miles. some times it was acting bad and other times it was okay. so ima check the tps at work and let yall know whats happenin cuz i aint spendin 300 for a part i aint sure is bad yet.......thanks