Rough idle . please help

[ahmad3051]

93 q45

101 k miles

has very rough idle.

engine vibrate at idle. when i press the gas over 2 k it feels perfect.

drove the car 300miles and the car did not get any worse or better.

i was wondering what could be causing this?

could it be i have a bad engine?

[konatown]

could be loose MAF sensor connection, knock sensors, etc.

its a very common theme in the 90-96 Q's

[maxnix]

Lots of things together or separately could cause it. How about a little recent maintenance history?

If injectors and fuel pump are fine, then I would wonder about intake path condition.

[elwesso]

definitely check your injectors, tutorial on Q45.org.