1984 Pontiac Fiero = Engine Seized...maybe?

[@EdwardKelly-yc3ju]

Great educational video on the engine

[@Turbo231]

Thank you.

[@lunaview6]

The only thing that I think, is it acts like it needs more fuel, from the video. Best of luck 👍

[@Turbo231]

Yeah, I get that feeling too, but seems like lots of gas.

[@mortisangelica]

You got fuel and spark it should go. Don't pump the throttle when starting its not needed to get it to fire over. Try reseating the idle air control valve. For the 2.5 that sits a while starting fluid is a huge help to get it going for the first time. The first time this fires over its going to jump to a high idle (like 1500 to 3000). High idle on a ecu reset is normal its going to try to learn its idle speed let it go with out revving it. if it does not go down after a 30 seconds kill it and restart. cold idle is also high from 1200 to 1500rpm but if after the coolant is warm it stays high you have vacuum leaks. I'm going to go and say this engine is going to have low compression and thats why its not running. If you do get it to fire over you will need to replace every gasket on the intake manifold and tbi along with all the vacuum lines.

[@Turbo231]

It currently purrs like a kitten. There will be a video on that, but spoiler alert, the factory cat was plugged. Removing that did wonders, as it did with my 1988 GT that was just losing power for no good reason. I’m quite familiar with GM TBI systems, but haven’t owned one in 14 years and coming back from seized wasn’t sure what to expect. I can’t run it a lot until I put a valve cover gasket on it, holy crap does that leak oil everywhere. Run time is what it needs the most right now, I can imagine there is a lot of carbon in there,

[@LooneyFarmGuy]

Oil in the air filter is not uncommon , faulty pvc valve plugged air filter sucking oil out of the valve cover could be one cause .and low compression ?, bad cylinder?

[@Turbo231]

Maybe, need to cut out the cat.

[@LooneyFarmGuy]

@@Turbo231 I had a car once that had a plugged cat and it was acting like that , so it could be 🧐

[@AllanBrogdon]

A guy asked me to look at his and i believe it's locked up. He doesn't speak English and I'm not too good at Spanish, so we will see.

[@Turbo231]

Yeah, lots of fluids and back and forth, maybe it will free up.