I remember the username from years ago. Good to see you back Tim. I didn't read all of Dennis' posts but he's usually spot on.
"Broke down" can mean many things....
It would be helpful, if you could describe the last 'breakdown' it had.
Driving along and just stopped running?
Starter doesn't work when you turn the key?
Engine cranks over but wouldn't start?
Started but wouldn't stay running?
Transmission or clutch problems?
Before you begin troubleshooting, some dos and don'ts.
It's been sitting for a lot of years..hopefully with antifreeze in it or the coolant system completely drained. There's a good chance rodents have found it a nice comfy place to spend the cold winters and they like to chew on wire insulation and build nests in bad places...like under the hood cowling where the blower motor resistor bank is.
Before you even think about connecting a hot battery on it, inspect all the wiring as best you can, inside the car, under the dash, (a mirror comes in handy) in the front compartment and of course in the engine compartment.
#1. Get the old fuel out of the tank. It's gone stale long ago. It's a pita to siphon gas from a Fiero, but it can be done. Walmart sells a cheap siphon pump for less than $10. I wouldn't try to use the in-tank electric pump to empty the tank..the varnished up gas would probably clog the intake screen pretty quick anyway. The other option is dropping the tank...not fun under any circumstances.
|Does your engine have a distributor or does it have the coil on plug design?|
Since a swap was done, using the 88 Olds 2.5, that's not strictly a straight in swap for an 86 Fiero is it? All my Dukes were 84s with exception of an 88 I had a very short time, but there were significant differences in the 88 2.5 as opposed to earlier years if I remember correctly. Probably a DIS engine and a different throttle body.
Good luck with it.
[This message has been edited by maryjane (edited 06-06-2018).]