my car revs super slow and dosent stay on. help
 

i have a 1987 n/a
it only turns on with a push start and the engine does crank over
and when it starts it revs up super slow and does not stay on even when engine is hot
the starter is okay
i cheked the gas pum and filter
all spark plugs are getting spark
and i replaced the censor that conects 2 the air filter
and the alternator i good acording 2 autozone lol
idk what 2 do if no one can help me im gong 2 have 2 take it 2 a shop and dont really want 2 do that

oh and its backfireing way more than normal

compression?

good thinking i will get a friend 2 help me do that on sat
cus i dont now have 2 do that


does any one else have any ideas !!!!!!!!!!!!!!!!!1
all ideas are welcom

Feels like compression lost in one rotor. Sorry
Dont need a compression tester to check it, just have a friend crank the starter while you check if there is some pressure out of the spark plug holes (obviously without spark plugs) disconect the terminal of the crank angle sensor to bypass spark and fuel.
Good luck

compresion is okay and



is my bac valve bypass air controlor supost to make noise and make my intake maniforld vibrate when i pas the key ?????????????

my first thoughts:

1. check your compression. if you did, what were your compression numbers?

2. make sure your plug wires are sorted.

My FC had the same symptoms when it ran on one rotor. It doesn't necessarily have to be blown to run on one rotor though. In my case, the plugs for the rear injectors were so old and brittle that they basically fell apart and weren't making a connection anymore, so the rear rotor was just dead weight even. Something worth checking, since the 20+ year old wiring isn't in the best shape anymore.

I'd check compression first, if it turns out okay, go after your wiring.