m50 fuel problem

[robiniscool]

i am so close to finishing my swap and ran into a problem. When i start the car, it starts up but gas keeps coming out of the rear and sounds like misfiring. its obvious there was huge signs of gas in cylinder 4 and 5 so i replaced the spark plugs along with the injectors. i checked the resistance of the injectors and it was 16.2 on all 6. so i turned it on agian after installing the injectors and spark plugs then the same thing still happens! so i thought the injectors might be bad so i switched around the injectors to see if it would change the cylinders that have too much gas covering the spark plugs. in attempt to find out what was wrong it turns out it was still in cylinder 4 and 5. so im guessing could i have fried my ecu and its constantly pumping gas into the cylinder? i know its not a cracked head because it was clearly fuel rather than coolant due to my gas tank emptying 1 gallon of fuel in around 3-4 minutes.
pleasee helpp me finish my swap so i can get it bar'd, thanks in advance
-robin

[robiniscool]

i also changed the plugs around to see if it was the plugs but it was the same thing, cylinder 4 and 5 covered in fuel

[samiam3356]

Wonder if its a harness issue? Something keeping the injectors firing on those 2 cylinders.

Would definetly swap out the DME 1st. Does your fuel rail have the FPR mounted on it? Some of the OBD1's didn't.

[robiniscool]

it has the fpr on it, i was wondering could i have fried it when i first started it because i forgot to ground the engine? i fried one of the wires but it was the starter ground. so i ended up putting a direct ground on one of the starter bolt and added a few grounds to the engine to make sure its properly grounded. but after that it started fine, then i started getting the fuel issue, im hoping its the ecu but im not sure on how to check if its the ecu because on my 240sx it was a hit or miss thing when it came to the ecu
engine is m50nv

[328ijunkie]

Fried the starter ground? Whut.

[robiniscool]

Fried the starter ground? Whut.

yea haha it wasn't grounded enough so i did what i did to my other cars when it lacked proper grounds, i added once directly to where it was needed. it works pretty well because its a snappy start now

but back to the subject any other things i should do? im gonna check the wiring later on to see if any of the injector wires are messed up, causing it to stay open, but other than that im going to get another ecu this week

[robiniscool]

update:
ok i know that the grounds go towards the ecu and grounds it to cause it to fire, so i was assuming that the ecu might possibly be faulty and ground those two injectors constantly? if so then the problem is easy, i checked the wires and they are in great shape, no rip or tears. but another question is about the crank position sensor, i know it controls the firing of the injectors but by doing so i was wondering is it possible that it might be the problem, will it cause to keep 2 injectors open? if so if i check with a multimeter what numbers am i looking for is it 525ohms?

[samiam3356]

low 500's on the CPS. Bentley says 1280 ~10 but its wrong.

[hammslice]

low 500's on the CPS. Bentley says 1280 ~10 but its wrong.

I think they have edited this. My Bentley Manual has the correct value.

[robiniscool]

i was hoping it was the cps but i got 516, hopefully everything is better after my ecu comes tonight, ill keep updating

[robiniscool]

http://shark.armchair.mb.ca/~dave/BMW/e34/e34_94.pdf

e34 m50, pg 119
cyl 1-pin 33
cyl 2-pin 32
cyl 3-pin 31
cyl 4-pin 5
cyl 5-pin 3
cyl 6-pin 4

http://www.bmwtechinfo.com/etm/data/e36/e36_92.pdf

e36 pg 81
cyl 1-pin 3
cyl 2-pin 5
cyl 3-pin 4
cyl 4-pin 33
cyl 5-pin 31
cyl 6-pin 32

the injector valves on the ecu pin are on different numbers..
could this be my problem? since i possible have a e36 dme with a e34 harness... any input would be greatly appreciated thanks

[robiniscool]

or it wouldnt matter? because the ignition is a different pin layout for the ecu also

[robiniscool]

nevermind i just looked up the ecu and its the same part number

[robiniscool]

UPDATE: Fixed the injector problem it was what i suspected, the ecu was faulty because it kept grounding cyl 4 and 5 so i was losing a lot of fuel and flooding the cylinder. thanks for the help! now that i fixed one problem time to wait for the next one to pop up...

[samiam3356]

Congrats on a quick fix