M50 Not running right! (video)

[Alpine e92]

Car: 1991 318i
Engine: 93 m50tu
DME: 413 Red Lable

Engine will start and idle normal, as soon as you touch the gas it starts to break up and wants to die. Got dtc codes for MAF, and TPS. Changed MAF, TPS, plugs and coils. Couple questions. Does the 318 4 cylinder fuel pump, pump enough gas for the 6? I'm currently draining the gas tank incase the gas is bad (car sat for a year with less then a 1/4 tank. I took a video of it running so you guys can hear it. Let me know anything else i should check.

http://youtu.be/wK5WhEht3Lk

[e30rapidic]

was the engine running ok before you pulled it? Did you do anything to it? kinda sounds like timing to me?!

[jrdeamicis]

The TPS should read an OHM reading of 1-4k on pins 2,3 (If I remember correctly) when you move the throttle through its range.

As far as the MAF goes you can measure its output voltage. See if its running well. Its measured in DC volts. I saw a 2.8 MAF today run about .9 volts and 2.9V at WOT

Fuel pressure should be 3.5 Bar in the rail and around 50 PSI with the car running. There SHOULD be enough pressure to run it better that it is.

Do you have access or know someone with an oscilliscope? You could scope the crank and cam signals.

Unplug the HFM and see if it helps.

Then restore HFM

Then unplug the O2 and see if it helps.

Then Unplug the cam sensor.

Then Restore.

[jrdeamicis]

Take the connector shield off the X6000 connector (DME) and back probe. You can leave all sensors in place. Use the wiring diagram from wedophones.com for you harness.