97 blinking check engine light

Ok i was on here a while back because of the intake issue. I had the upper and lower repaired and the car ran for a few days and then i ran into another problem. i was getting random check engine lights which gave i guess bad o2 sensor codes. I didnt think that it would really be a huge problem but then the car really started acting up. I went and had it scanned again and then i got the system too lean and cylinder 5 misfire. at this time is was only a solid check engine light. I was told to change the plugs and wires and then run injector cleaner and i should be fine. I went ahead and did that and then the car started acting up again a day later. This time i had a blinking check engine light and the car was extremely sluggish. It did not want to accelerate. I took it and had them rescan it and then i only had the cylinder 5 misfire and not the other code. They went ahead and rechecked the plugs and wires and they were fine. They told me to go ahead and change the coil pack for that cylinder and then i shouldnt have the problem again. Well i changed that and still the same error and problems. I also had the ignition module or whatever its called that sits under the coil packs, and they said thats fine as well. i just cannot figure out what the actual problem is now. This weekend im taking it in to a auto shop to have the fully check everything out because i ran out of options and its getting to the point where its eating up gas and the repairs are starting to break me. is there anything else to look for? What am i not doing? The car doesnt even want to start up all the way. It starts and then the engine seems like it doesnt want to keep up and seems like its dying before i can put it into reverse or drive. I have sit and let it almost die or try to rev the motor to get it to idle right before i take off. I am just about fed up with this car now. any help please, i dont knwo what to do with this anymore.:banghead:

Not sure whats going on but all your doing is throwing a mass of parts at the car without having any idea what the real problem is...

Not sure what or who scanned the car for you... But its evident they don't know what they are up to...

The Blinking SES light for htis car is most likely a Random multiple Missfire Code.. This can cause problems and issues with the Cat Converter as well..

You do need to have the car checked out by a reputable shop..

Not sure what Scan tool was used but if it was half a scan tool you should have waled away with more info than you currently have..

Also Has the Fuel pressure been checked?