e30 no start

[Edward_b]

Fuel lines are hooked up properly. I also get spark from 1-6 not sure what else could be the problem :/

[2mAn]

does it just turn over and over and nothing?

Id double check to make sure the timing is correct and the spark plug wires go to the right spot on the cap

[ThatOneEuroE30]

Crank sensor. Even though the fuel lines are hooked up properly are you getting fuel from the injectors. Whats the fuel pressure. Clogged fuel filter?

[e30davie]

If he has spark wouldn't that indicate the crank sensor works?

You've given us no information OP. not even the type of engine

[Cabriolet]

if you have a late model car, there is a c101 under the intake manifold. if that is loose you wont have starts.
if you have spark, the crank position sensor is working and the brain is working.
it has to be fuel. you could have a bad fuel pump? do you have flow?

[e30davie]

reality is it could be so many things.

-old shitty fuel
-blocked fuel filter
-stuffed fuel pump
-something isn't plugged in (maf, tps, anything else)
-blocked fuel injectors
-fuel pressure regulator stuffed
-vacuum lines hooked up wrong
-ignition timing is out
-cam timing is out
-massive vacuum leak
-starter motor not spinning fast enough
-battery flat

[TheRob]

Sounds like you probably have a fuel delivery problem. Have you attempted starting it on an alternative fuel source? like starting fluid or carb cleaner, just to see if it fires? You can rent a fuel pressure tester from O'reilly if you need to and check fuel pressure.

[Edward_b]

It only turns over with starting fluid. I will try with better fuel maybe? Car just recently went from a 2.7 to a 2.5 swap

[TheRob]

If it runs on starter fluid then you have a fuel delivery issue. Was the car sitting for a long time prior to the engine swap? The gas would have to be in really bad shape for it to not run on it, I've seen cars run on gas that's been in the tank for over a year, they didn't run well but they did run. If you pop the back seat out you can check for B+ at the fuel pump or you can check for B+ at the other pump under the car should be a green/violet wire. At the very least have someone try and start the car and listen to see if it turns on.

I'm sure you can find a wiring diagram on here somewhere. Also there should be a fuse for the fuel pumps that might have blown, fuse 11 if i remember correctly.

[spiDmang]

Definitely not getting fuel to the engine.
Check out this link and run thru each step. It's tedious but necessary

https://blog.bavauto.com/3562/no-start-1989-325i-e30/

[ThatOneEuroE30]

It only turns over with starting fluid. I will try with better fuel maybe? Car just recently went from a 2.7 to a 2.5 swap

Double check the fuel lines. Pull one and crank the car which ever one has fuel spewing out make sure that goes to the inlet. You either have bad fuel pump, injectors, clogged filter or lines are swapped. If it just went from 2.5-2.7 my money is on the lines.

[spiDmang]

Double check the fuel lines. Pull one and crank the car which ever one has fuel spewing out make sure that goes to the inlet. You either have bad fuel pump, injectors, clogged filter or lines are swapped. If it just went from 2.5-2.7 my money is on the lines.

This ^^. If the Fuel supply line is connected to the Fuel pressure regulator, you have the lines switched.

[Edward_b]

I did double check which fuel lines go to what. Im guessing bad gas? Ill check the gas over this weekend.

[ThatOneEuroE30]

I did double check which fuel lines go to what. Im guessing bad gas? Ill check the gas over this weekend.

How long did the car sit? It usually takes 6+ months of sitting for todays gas to go bad. Even at that in my experiences the car will still start but run like shit. Doubt its bad gas. Going to be something with fuel delivery. You should test your fuel pressures and then get a set of noid lights and see if the injectors are getting a signal.

[Edward_b]

How long did the car sit? It usually takes 6+ months of sitting for todays gas to go bad. Even at that in my experiences the car will still start but run like shit. Doubt its bad gas. Going to be something with fuel delivery. You should test your fuel pressures and then get a set of noid lights and see if the injectors are getting a signal.

I'd say about 6-9 months. ill have to check on her over the weekend.