My daily 1984 318i wont start! HELP

[Alexmw21]

I bought my e30 about 6 months ago and have had all the problems imaginable. As of right now my car won't turn over and start. It will crank but that's it. If it does start it will only keep running if I keep my foot on the gas pedal. Normally when it dies on me it chokes a few times then cuts off or it just cuts straight off. This time when it decided to die on me I realised my in-line fuel pump had been making very loud erratic noise beforehand and for the week before that. I didn't think much of it because it is new. I have replaced spark plugs, distributor wires, ignition coil, coolant temperate sensor, battery, both fuel pumps, oil change/filter, fuel filter, cold start valve, multiple hoses, fuel pressure regulator and the list goes on but not much further. I've been testing electrical now but can't get anywhere. The alternator checks out and I'm looking over my relays. I am constantly searching for a solution so anything would help! I feel like I'm dumping all my money away and getting no further!

[varg]

Check intake elbow on the throttle body for holes/rips, verify that all air hoses (ICV, etc) are intact and not leaking.

[Alexmw21]

I have also replaced the throttle body elbow a few months ago. Along with the icv connecting hoses. It started once and ran this morning when I have it some gas. It idled obnoxiously for awhile then cut off and won't start again.

[roguetoaster]

Go back and post in your thread in the M10 section aa you may get better help there.

[agent]

Moved to M10 section.

[Alexmw21]

UPDATE: I messed with a few things today and got my car running. my throttle switch was damp with oil. How? I'm not sure. I think from a prior leak I fixed. Either way I dried it off and my car is running. I have no idea if this is what got my car running but it seems that way. Not sure if I should replace my throttle switch but am going to test it soon and also Not sure how long my car will be driving in this state.

[jonnywadster]

Good deal, yeah if the switch isn't that bad price wise and or is cheaper than a tow home I'd pull the trigger on that purchase.

[jeffnhiscars]

I sold my m10 a while ago so can't sa for sure its the same, but on an m20 as they age you get blow by that lays a thin coat of oil in the throttle body. From there t runs down the worn butterfly shaft in to the tps. The fix is to drill a small hole dead center in the plastic cover after you clean it so the oil will drain before itfouls the switch.