Larry
True Classic
If the Fuel Pressure Regulator diaphram is bad it will allow fuel to leak and/or sucked out of the FPR into the plenum, resulting in a flooded condition. Pull the vacuum hose off the FPR & smell (not the larger return line). If it's leaking, you will smell fuel. Note that if this is the case, you need to also change the oil ASAP as the excess fuel will absolutley contaminate the crankcase & therefore the oil. This is a pretty common failure symptom on '80's Volvos utilizing the same design FPR.
If you can check fuel pressure, you may or may not see a rise/drop due to the bad diaphragm, but it will always be evident by smelling the vacuum line
Thanks. I've got a few things to check. I wasn't able to look at it today - we picked up a 2018 Fiat 124 Spider and the entire process most of the day. It's nice to have a new Fiat, but my priority is still to get my X1/9 on the road.