mine (92 accord lx) has a miss when its idling esp when in park and hot, also the RPMs fluctuate when driving at highway speeds. whats up? because im at a loss

 

could be a # of things,,,,,,,,,plugs, plug wires, distr cap. tight valves, injector, carbon build up, egr ports.

have you checked anything at all ??

 

has new plugs, wires, cap and rotor, ran 2 bottles of STP fuel system cleaner through it

 

pull the egr valve and try cleaning that out a bit.... see if that smooths it out

 

ok heres where I sound like a moron... where the hell is the EGR valve located?? its a 92 accord lx 2.2L automatic

 

http://www.hondaautomotiveparts.com/...NIFOLD+%281%29

# 16 is the egr valve,,, try to disconnect the vacc hose from the valve first and see if that helps

 

THANKS Desert, Ive looked at it several times and never paid attention LOL. disconnecting the vaccum hose from the EGR valve isnt going to harm any of the other motor workings??

 

ok so i bought this can of throttle body cleaner, took my intake hose off and sprayed out the throttle body, its running 100% better..took the vaccum hose off the EGR valve all it did was cause the check engine light to come on.

 

any vacc in that hose at idle?? also chk to see if egr valve holds vaccum,, car at idle apply vacc to egr valve, engine should die , if it does not could have egr ports plugged
as for the chk engine lite no big deal just clear the computer
back up fuse in the underhood fuse box , remove it for 15 seconds and reinstall ( engine off )

 

engine didnt die when I plugged the EGR with my finger while idling, and once I put the vaccum hose back on the EGR the check engine light went off... i swear I sprayed out the throttle body and now the car has more power and its idling 100% better. "shrugs" maybe the throttle body having all that crap in there was the problem.