1995 olsmobile royal 88

Question edited to correct typos.

Buy new, because they are a pain to change in the fuel tank. Plus if you are intending to buy a used one there is no guarantee if it works, its pressure or how long it will last?

Oldsmobile Delta 88/Royale OEM Replacement Fuel Pump ...

https://treperformance.com > i-713-oldsmobile-delta-88...
TREperformance sells Stock OEM Replacement Fuel Pumps for all Oldsmobile vehicles including the Delta 88 Royale. These OEM replacement pumps will fit any ...

Fuel Pumps for Oldsmobile 88 for sale ' eBay

https://www.ebay.ca > ... > Fuel Pumps for Oldsmobile 88
Get the best deal for Fuel Pumps for Oldsmobile 88 from the largest online selection at eBay.com. ' Browse our daily deals for even more savings!

1989 Oldsmobile Delta 88 V-6 firing order is 1-6-5-4-3-2
see image below for spark plug wire orientation:
Good luck hope this helps!

This happened to my 95 Royale while driving around town. I checked the battery terminals and one was slightly loose. After tightening it, no more dying.

is there a check engine light, possible mass air flow sensor

You'll have to figure out if it is a fuel or ignition problem.
Is the check engine light on ? Have you checked for trouble codes ?
It could be a relay, the ignition module, coil, key switch, or a list of other things.

It may be time for a pro to look at it. You dont want to guess wrong on a PCM. Are you sure you have Injector pulse? One side of the fuel injectors should have power and the pcm grounds them to make them open. If the engine runs on carb cleaner its not getting fuel.

CHANGE THE ELECTRIC COIL ,PLUS TUNEUP,CAP&ROTOR WIRES PLUGS

callme at affordable auto service 724-575-2821 ask 4 jason.......

ps: i know what your problem is..

check for a bad battery connection or bad battery and then the startet the fuel pump wont keep it from turning over

Most likely you are correct and the wire connectors are not plugged in completely. Check that all the connectors are plugged all the way together anf lock in place together.