Intermittent engine stalls - 93 V6

[geschaef]

My 93 XLE warm stalls at both highway and street speeds. Engine just goes dead. So I sit on the shoulder for a couple of minutes then it fires right back up. It sometimes refuses to cold start, again with no regularity. For instance, here in Iowa over the holidays, it was 30 below wind chill some nights but the next day, it started.

Here's what I've done so far: replaced ignition coil, fuel filter/pump, and cleaned TB. I pulled an engine code of 41, a Throttle position circuit fault. Mechanic found no spark at plugs and condemned the distributor since the coil was new. He said an "electronic component" inside the dist is failing intermittently (Pickup coil?). This test was done on one of the times it would NOT start sitting outside. He pulled it into his garage til warm then started it and I drove it home after deciding his bill for a new dist was too high. Nothing's been done on it nor has it been driven since.

Ideas on what to try or test next? Does the igniter (installed on wheel well) fail intermittently on this model?

[geschaef]

I’m a little hesitant to claim victory on this problem but so far, its working and I wanted to put a closer on this post (also apologize for double-posting on ToyotaNation before I read the rules).

It was the Ignition Control Module (Toyota calls it the Igniter). As I wrote previously, the spark test seemed to indicate that the distributor was the road block but reading through the Service Manual for this engine (3VZ-FE), noticed that Igniter was not part of distributor. The guy working with me had previous experience with ICMs going bad on Chevy’s so went with that. A new ICM is $365+ so I found a $50 recycled part at local salvage yard. Camry fired right up and it’s been staying that way. So far, no warm stall, which is what sent me down this road. If I’d had more electronic skill, I might have solved this sooner. Am grateful for this forum. Hope this helps someone.

[Brian R.]

Thank you for the follow-up information. Glad you solved your problem.