Throttle body and low idle...?

[jtszymano]

Recently the xj died on me likely b/c of zero battery left BUT Ive been also having rough idle...but it is always low. it never really revs high when it acts weird.

Can a dirty tb cause rough low idle?
Also, I took it in for a check b/c the thing was azcting quirky and tyhey said that the #2 cylinder had a few misfires...is there any relation to a dirty tb and the misfires?
thx

[jeepdude10000]

I dont think u can get misfires from TB, it will idle rough or irratic.
for misfires check thr cap, rotor, plugs, wires.

if u do clean the TB remoce the IAC and TPS, so u can clean it really good, at same time clean IAC.

[jtszymano]

TB cleaned and new battery yet still same low idle and minor 'shakes' usually right after startup but it can still be felt to a lesser extent at stoplights....

What else could it be?
TB cleaned.
New plugs last year.
New battery last week
What about fuel injectors?
thx
JS

[jeepdude10000]

u would feel injector problems at higher RPM.
have u thought about just setting up the idle?
to set up the idle u will need an Allenkey ( forget what size but pretty small)