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When it is fixed and happy we will all have new knowledge😎

I wasn't offended when you said you contacted East Coast Reatta. I was serious about Marck at East Coast Reatta being an expert on Reattas. Reattas is his only business. I've said several times that I don't consider myself an expert on Reattas. I've been lucky enough to be surrounded by Dave, 2seater, Padgett and others who have taught me a lot about Reattas and helped me collect the information you find here on ROJ.

East Coast Reattas is certainly an authority on Reatta's and a good source for parts, so no reason to take offence I know of. One hurdle has been conquered and there are likely more to go. It may be painful but educational. The reason I mentioned previous posts and answers is my memory says we are covering some of the same ground? The items I mentioned are not codes but are identifiers of the items in the live data screen. The onboard diagnostic capabilities are probably one of the best and most useful parts of the Reatta and should be a primary focus to learn to use it and be comfortable with it. It isn't perfect since it uses computing power several generations old, but what it does do, it does well. It isn't just for reading codes, it provides live data that can be accessed at any time. Just the four items I suggested will give an idea of the overall fueling the ECM is seeing. Further along, learning the overrides will allow the injectors to be turned on and off, individually to judge the effect. The purpose is to narrow the search area. It sounds unfortunate the car was stored outside without at least a full tank of fuel, so rust is a possibility, but if it starts, runs and the only complaint is rough running, it shouldn't have a fatal defect. Don't focus on any one area based on an assumption, investigate. If you want a fun light show, as well as useful information relative to the quality of the ignition, buy a half dozen of those inexpensive spark test gadgets, the ones that go inline with the spark plug wires at the coils. Start the car and it will be evident if there is a defect in the ignition under the garage conditions. One word of caution if you do this. If a weak spark is indicated on a particular cylinder, trade the spark tester with another cylinder just to be sure it isn't the tester itself.

A few photos. Driving on the Tail of the Dragon again on Sunday 5/23/21. Note the bike at the bottom. There are several curves on the Dragon like the one below where you come down a hill into the corner and the have to accelerate up the hill coming out of the curve. If I went into the corner fast and accelerated out really hard I could hear the rear tire rubbing the inner fender well. The camera the guys taking the photos use are so fast they don't show how fast the cars are going into the corners but let me tell you, everyone goes fast on the Dragon or you get run over. 🙂 The guys on bikes like this go all out like they are racing. Hundreds of them a day go up and down the 11 miles of the Dragon to take on the curves. A handful of them get killed each year on the Dragon from going over the side of the road into trees. There are no guardrails on the Dragon and the ravines are steep. Last year one of them ran off the road and it was over a week before they found him.

I think you are probably right. I was watching the coolant temp and it never got over 185 but I'll bet accelerating hard out of the corners for about 50 yards then using the engine for breaking into the next corner was giving the EGR a real workout. Doing that constantly for about 100 times might have overheated it. It might be hard on the EGR but it sure is a lot of fun. 🙂 I should have mentioned earlier that after we left the Burger King we had to stop at a dozen or more red lights and the engine idled perfectly. After the engine was cooled down tonight I went out and started the engine to see if it would stall or run rough again It started and ran normally. It could have been just a glitch brought on by the way I was running it in 2nd gear on all those curves. If it happens again I will pull the EGR off and give it a good cleaning and check it out. Tomorrow I intend to use diagnostics to cycle each one of the EGR solenoids to make sure they respond properly. On the Dragon there about a half dozen guys set up on the side of the road that are taking pictures you can purchase on their website. They take thousands of photos of cars each day. They took about a dozen of my Reatta. Below is one of the proofs. I could download the full size high resolution copy for $9 without their watermark but I don't think any of the ones they took today looked good enough to pay for.