code 1514
Thread Starter
Racer
Joined: Dec 2003
Posts: 270
Likes: 0
From: owensboro ky
code 1514
code 1514 throttle body perf. i have replaced thr body and still get this code and reduced engine power. runs fine till you snap the throttle, then code comes and reduced engine power. turn off car and restart, it is fine till you snap the throttle again. can any one help me please. took it to two dealers they have no clue. thanks, greg
Thread Starter
Racer
Joined: Dec 2003
Posts: 270
Likes: 0
From: owensboro ky
motor is totally stock. i swiched out complete throttle body assy from my 99 onto the 98 did the same thing. tac is the little motor on the side of throttle body right? any other clues? thanks, greg
Drifting
Joined: Oct 2003
Posts: 1,540
Likes: 0
From: bloomfield nj
if i remember right,this fault is a tac/maf performance fault.it sets when actual maf airflow and predicted airflow differ too much.i know that maf airflow is backed up by the map sensor[reduntant].i'd check and make sure the tps is ok,but if you've switched throttle housings,that eliminates that,but since it only happens when you snap the throttle,i would look at the map sensor to make sure the line going to it from the intake is ok[the map also acts as the baro sensor]and the connection to it is ok.if the map sensor circuit seems ok,look and make sure the tac module isn't corroded.make sure the vacuum line to the map isn't plugged with carbon,if you have a scanner watch the map sensor as you move the throttle.when you snap the throttle and the blade closes,intake vacuum will be at its highest and then drop down to normal.
