Red coolant light is on, as is Neutral, Battery and Flashing ABS lights (need to bleed brakes).
Sorry, sailor, I did check all of the items you posted to make sure they were not part of the problem. I couldn't remember if the red coolant light was on and had to come out and check.
Would you recommend the motronic being replaced? I could have easily screwed it up when I messed with the upgrade chip.
Well.... I want to make sure nothing is "assumed" in troubleshooting, so let me repeat a few items just to be sure:
So... if indeed you see the RED coolant light before starting -AND- also assuming that there is no prime signal (12 volts) at the fuel-pump connector during the initial 2 seconds prime (after ignition ON), THEN I would say there is a low probability the Motronic unit is defective. NORMALLY, when no one had been there to tamper the Motronic unit, I would say it NOT very probable it is defective, but in your case, there is a high probability (while installing upgrade chip).
FURTHERMORE, Before you buy a used replacement Motronic:
(1) we have to be certain it is not only the upgrade chip that has been damage during chip swap... Hence, I am also assuming you have tried to install back the original chip into the Moronic unit to eliminate this possibility.
(2) we have to be certain it is not a single Pin of the Motronic unit that is damaged or doing a loose/bad connection into main harness (when the Motronic unit was was pushed back). So you should carefully check the female side (main harness into plastic junction box) using a flashlight for all pins, but mainly for Pin # 16 as this is the one in control of Fuel-Pump Relay. See attached image for pins sequence...
I hope I am making sense here as my main language is French ;-)