95 grand cherokee rough idle with codes
 

Hello i recently posted about a miss and hard starting problem, its a 5.2L v8after monitering alittle more its not a miss. more of a rough idle and acts if it wants to die at lights/stop signs also notice at times it wants to die the voltage drops below normal but when accelerating goes back up and stays....new cap and rotor and plugs and wires and still the same..i was able to get 2 codes that i didnt have before they are
32-EGR solenoid circuit -open or short detected in EGR solenoid circuit /EGR system failure required change in fuel/air ratio not detected during diagnostics test..
52-air/fuel at limit-oxygen sensor signal indicates lean air/fuel ratio during engine operation.
where is the EGR solenoid located i could not find it.
If anyone could tell me what i should check or steps i need to take it would be greatly appreciated
thanks

after doing some searching for vacuum leaks i found the hose from the pcv to the intake was cracked i replaced that and now its hard to start and when it does wont stay running unless i remove the hose from the intake..and it starts better and runs just ok..but better then before

for the egr try pinching off the vacuum line that connects to egr if it smooths out it needs a egr soleniod

i did unhook the line to the egr valve while it was running there was no vacuum from the line and it didnt change the way it was running at all..would that be the same as pinching it?
thanks

its not the same because your creating a vacuums leak but since you say there is no vacuum trace line line back and check for leak, not sure on jeeps but some cars have a check ball in the line and after a while the line shrinks on the ball blocking vacuum if you can see a ball in the line replace the line w/out the ball