Need help m50 NV 92, crank no start

[Matt-B]

i put a known working crank sensor in, cam is brand new...

plugs are getting really wet, and when i pull a plug and dry off to check spark, it has good spark, wtf?



Also there is a tiny black wire coming from the Diagnotic Cap, 2 inches black, just snipped, its not in the mail look, tucked under rubber boot

[e30s52]

Have you checked the CPS yet?

[Farbin Kaiber]

I don't think it's the pump. Or the FPR. I think something is still plugged in the wrong connector. Check the Wiring Diagram for the harness you have, and make sure each connector is where it's supposed to be. There are only a few you could mess up.

[Matt-B]

it was ground down below by motor ground, i can ground on strut tower, its wanting to start, new plugs, getting spark, getting fuel, going to test fuel pressure here shortly...


if my FP, is not high enough, could that be a FPR or pump? pump is about a year old, FPR was on running car when motor came out

[samiam3356]

Resistance on the cps should be in the low 500's. Check that. Large vac leak?dme is grounded on the shock tower btw.

[Jand3rson]

put a ground on DME to strut tower, going to make a better ground here shorty, didnt not make a difference, going to buy a fuel pressure gauge soon

FML, why cant a swap go off with out a hitch, everything is from a running car

It doesn't matter if it's from a running car. You've got something hooked up wrong/backwards/not at all somewhere. Just have to find it.

[Matt-B]

put a ground on DME to strut tower, going to make a better ground here shorty, didnt not make a difference, going to buy a fuel pressure gauge soon

FML, why cant a swap go off with out a hitch, everything is from a running car

[Farbin Kaiber]

lol.

[Matt-B]

I heard, the DME does not need a ground, its grounded through harness, and Ill switch CAM and CRANK here shortly

[dirty30]

is your dme grounded?

are your cam and crank sensors on the wrong engine harness plugs?

[e30s50dan]

Spray a little starting fluid in the intake...behind the maf. If it try's to start,chase the fuel issues

[Matt-B]

doing that tomorrow yea, thanks Farbin

[Farbin Kaiber]

It will run like shit with a bad MAF. That means it will run.

Take off an injector connector, grab two pieces of wire and a flashlight bulb, make a ghetto test light and see if the injectors are getting pulse.

[Matt-B]

front fuel line, i popped off, into bottle, filled bottle, its the right line

[ahriley91]

Before you go buy some more parts, try switching the fuel lines. If might not work, but it's worth a shot.