96 JXI runs rough


jlemay
07-26-2010, 03:06 PM
Hello, just put in a engine for a 96 JXI , 2.4 dual overhead, and currently im stuck on a problem. i have a rough idle at start up, at 750 rpm, and the accelleration is "jumpy" so to speak, it has new TPS sensor, IAC sensor, Crank/Cam sensors, and compression is good, and going to replace the map sensor in about a day, (replaced sensor idle is a lot better, BTW it did not set off a check engine light) but the idle is just rough and wondering if anyone can think of something i might have missed, ps plenty of power when you floor it, lol

PS: selling a bunch of parts the DO NOT work, lol

mark44004
07-29-2010, 09:17 AM
O2 sensors maybe? Vaccuum leak?

jlemay
07-29-2010, 02:33 PM
new O2 sensors, could be possible of vacuume leak, it acts like its in the slow idle (however that would be adjusted) cause the engine has power, ill check the vacuume lines with a gauge, gah i hope its not that. sigh

jlemay
08-14-2010, 02:34 PM
sigh, i have now lost compression equally on all 4 cyl and i have a vacumme leak, and computer is saying multiple misfire, idle is rough, any idea/thoughts on what it is?

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