'91 Camry

get your egr valve checked.

dave mc

I had that (91), the stalks on the plug leads were cracked and floating in oil. Re-seated the tubes around the plugs in sikaflex and bought new leads (they come with distributer cap). Runs well now but still wouldn't idle properly. I found the gearbox kickdown cable was way too loose, that seemed to fix the idle though it still faulters a little with a/c on. Had tried to idle it down as it seems too fast, but idle was not stable so I screwed it back up. At least it doesn't stall now. Does your a/c idle solenoid make a funny noise? mine has a weird air-sucking noise & I suspect it's not right, but they are expensive and are not stocked at the local dealer here.

A common issue for that model is the ignition coil under the distributor cap, it gets oil on it from a worn Oring gasket, remove the cap and clean the coil, or it could just be a bad plug wire, replace them if old. What you describe is the most common of camry problems of that model.