Car starts great and runs revs up fine until engine warms up then opening throttle engine will not accelerate just run cut out run cut out at a precise beat, open throttle larger the cycle becomes faster of trying to accelerate and cutting out. Disconnected the temperature sender/sensor engine will run normally cols and accelerate when hot but after warm fast idle and varies, played with the throttle body air screw to correct problem helped some but not like before in smoothness. Also disconnected electrical idle control air bypass plug and had to increase the idle air screw. Engine warmed up and ran inconsistently. Reconnected idle control bypass and drove car, not the same power or response. Once warm sitting in traffic engine heated up rapidly, at speed engine stayed at normal temperature. I know there are two engine settings one for cold one for at temperate has the pcm taken a partial dump but will run in the cold program? Reconnecting the temp sensor engine at temp will not accelerate and just runs cuts out runs cuts out at anything much over idle. Out of ideas need help. With everything connected no engine light comes on during problems cold or at temp. With temp sensor disconnected or idle air control bypass disconnected engine light comes on and stays lit several seconds after start up.
have the same problem?
Tuesday, January 7th, 2014 AT 4:14 PM