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No, as soon as you leave diagnostics it should go away. And every time you select on it should increment between cyl.

Normal - all probably on startup but just idling it should not be changing.

The only explanation I can come up with for the '89 FSM showing two relays on the firewall is it was planned for one of the relays to be moved on '89 models when the manual was printed but didn't get implemented until '90.

Why I have all of the FSMs, P&I, and the TSBs. for every year. Have same for Allantes.

Shall we say I outgrew my Fieros ? Not sure exactly how many I had, first was an 84 automagic, most of rest were 86 SE and GTs with manual transmissions. If ever had a 5 speed I might still have, 2.8 V6 had the most beautiful sound I know. But then despite air horns had one too many SUVs look over and see nothing in the next lane. Reatta is tall enough not to have that problem. Had a percentage of Reatta converts before switching to SLK retractables. Almost continued that trend with an XLR & almost bought a couple before deciding "what kind of a GT car has no luggage space with the top down ?". But still had a bit of an itch (note: am a GMI grad and spent five years with Delco Remy, tend toward GM cars). Then last year Allantes (89 with larger engine) got too cheap to resist so bought a nice 64k one with both tops. Then another not as nice but half the price appeared three miles form my house. Did some calculating and both fit in the back garage. Barely. Am discovering that a lot of undocumented electronics came from Japan and used (then) cutting edge LCD displays. That are not sunlight tolerant. Also would love to know who added 9 separate multi-connector modules spread around the car in case a bulb goes bad (discontinued but $168 in '92 parts book. Each.). Or that coolant fan operation requires a module that accepts a pulsed square wave (Reatta has relays. Works well). Oh well my task has been to find a modern replacement for the LCD displays. That can accept commands form the backplane. Are the same commands the Reatta uses (off-warm to get into diagnostics) so some commonality.

I've thought about getting an Allante before but decided against it. I would like the extra power. I think they look more dated than the Reatta with all the angles and sharp edges on the body lines and the interior is dated for the same reasons. I prefer the more rounded look of the Reatta and I wish the Reatta designers had continued the rounded look of the front of the Reatta like the rear has. I think the more rounded look of the front end of the Fiero Formula I had would have looked great on the Reatta. I think we are going to have to expect the parts for the Reatta to be a real problem soon like you are starting to experience with the Allante now. As Reatta owners we should be gathering all the info we can on people and businesses that can recondition hard to find Reatta parts, especially the electronics. There will come a time when good used parts will be almost nonexistent in the junk yards. We will have to repair what we have or find substitutions from other vehicles and figure out how to make them work in a Reatta. For those who want to keep their Reattas factory original, I think it is going to get really expensive to do so. I'm not in that group so anything I can do to keep my Reatta going to enjoy it without butchering it or compromising the safety of the car is what I'm going to do. I'm not going to spend a ton of money on mine just to say it is factory original.

Odd, is in the 89 FSM.

No but using the override ES-10 you can shut off the injectors one by one and see if one makes no difference.

No codes have been displayed because of the low fuel pressure. As far as I know the ECU won't set a code for low fuel pressure or a defective secondary ignition system. Spark plugs, wires, coils, etc. Newer cars with the OBD2 systems will set codes for the ignition system and tell you whet cylinder is misfiring. I'm not sure about low fuel pressure setting codes.

Love seeing this! Thanks for sharing. Those wire wheels on the Reatta are a unique look! I love wire wheels but think the Reatta is too futuristic/modern for that look. But interesting to see the car in development.

Love seeing the old photos. Thanks for sharing!