No spark....WHY!!?

[mazur]

I ran this engine several times before pulling it out of my wrecked e36. And for some reason, now I'm not getting spark.

I verified this by taking out one of the coils and spark plug and saw if the spark plug was arcing while cranking.



The chip I'm currently running (Stickley) w/ out EWS was sold after I pulled my motor, but was sent back because the buyer said his car wouldn't start with it. I remembered this, so I switched it with my stock chip (I cut pin 66 so EWS is disabled) and now my fuel pump doesn't work, and it still doesn't get spark.

Any obvious ideas what it could be?

[Jason89i]

see your original post from yesterday....trying to help.

http://www.r3vlimited.com/board/showthread.php?t=87008

IThe chip I'm currently running (Stickley) w/ out EWS ............................, so I switched it with my stock chip (I cut pin 66 so EWS is disabled) and now my fuel pump doesn't work, and it still doesn't get spark.

so....which chip are you currently running?

if you are running your stock chip w/ ews, no workie. if you have an ews delete chip with green wire (ecu pin66) cut, then you have other problems.

jason

[mazur]

if you have an ews delete chip with green wire (ecu pin66) cut, then you have other problems.

jason

So you're saying that it's not the Chip? Is is possible the ECU itself would be bad and still allow other functions to work?

I borrowed some chips from my friend (all made for 506) and all they did was not let my fuel pump come on.

[Jason89i]

So you're saying that it's not the Chip? .

im not saying its anything yet. need some more information to help logically diagnose. speculation without information will lead you in circles.

from the previous post that your fuel pump doesnt fire up.......

need more info.
what year is the car?
in the "run" position, are you getting power out of the main relay? (large red/white wire.)
in the "run" position, does everything inside the car work correctly?
after 30sec, turn key to "run", do you hear the fuel pump working (or are you getting power to fuse 11? (fuel pump should power up, but only for a second.).

from this post about not getting spark.......

so....which chip are you currently running?.

cheers, jason

[mazur]

Quote:
Originally Posted by jason89i
need more info.
what year is the car?
in the "run" position, are you getting power out of the main relay? (large red/white wire.)
in the "run" position, does everything inside the car work correctly?
after 30sec, turn key to "run", do you hear the fuel pump working (or are you getting power to fuse 11? (fuel pump should power up, but only for a second.).

I think I have this problem solved.

Quote:
Originally Posted by jason89i
so....which chip are you currently running?.


I am currently running the Stickley, because that's the only one that allows the fuel pump relay to work properly.

[DEV0 E30]

Cutting this pretty close for bfest aren't you? :)

All grounds hooked up?

1 - From oil pan to chassis.
2 - From one of the coils grounds out to nut near coils.
3 - Shock tower.

I think that's all of the ones I can think of that could have been overlooked.

[Jason89i]

Quote:

I think I have this problem solved.

I am currently running the Stickley, because that's the only one that allows the fuel pump relay to work properly.

awesome. glad to hear the fuelpump is working properly. are you getting fuel pressure? (i only ask because ive swapped the lines a few times. )

cheers, jason

[mazur]

Cutting this pretty close for bfest aren't you?



All grounds hooked up?



1 - From oil pan to chassis.

2 - From one of the coils grounds out to nut near coils.

3 - Shock tower.



I think that's all of the ones I can think of that could have been overlooked.

Yes I got all those.

I'm not going to bimmerfest because I can't get off work.

awesome. glad to hear the fuelpump is working properly. are you getting fuel pressure? (i only ask because ive swapped the lines a few times. )

cheers, jason

Oh yah...fuel definately going the right way. I though that was my problem first, but found out I had it right the first time.

[mazur]

I switch CKPS and CMPS to see if somehow I mixed them up even though I labeled my wiring, nope it was correct.

I saw that the CKPS must be hall-effect since it's a 3-pin connector. Checked for voltage and got 4.8v, so no problem there. Ohmed out the sensor and got 580 and I believe that's fine as well.

Coil packs are getting voltage and ground.



If it's not the DME, I don't know what it could be:? So hopefully I can get someone to let me try out their known good DME with mine to verify. Or other way around and see if their car doesn't want to start.

[FredK]

Fuel rail ground? It's a little brown wire that hooks up to the engine lift eyelet at the front of the engine.

[IveGotIssues666]

I switch CKPS and CMPS to see if somehow I mixed them up even though I labeled my wiring, nope it was correct.

I saw that the CKPS must be hall-effect since it's a 3-pin connector. Checked for voltage and got 4.8v, so no problem there. Ohmed out the sensor and got 580 and I believe that's fine as well.

Coil packs are getting voltage and ground.



If it's not the DME, I don't know what it could be:? So hopefully I can get someone to let me try out their known good DME with mine to verify. Or other way around and see if their car doesn't want to start.

How are you bypassing EWS to start the car? I could have sworn EWS sends a signal to the DME to start the car (It's like that in the E46's at least), does your aftermarket chip take care of this?

What happens with your stock chip in and EWS pin 66 connected instead of disconnected? Anything?

Jared

[matt]

How are you bypassing EWS to start the car? I could have sworn EWS sends a signal to the DME to start the car (It's like that in the E46's at least), does your aftermarket chip take care of this?

What happens with your stock chip in and EWS pin 66 connected instead of disconnected? Anything?

Jared

No... the DME has nothing to do with starting the car.

The key signals the starter.

[mazur]

What happens with your stock chip in and EWS pin 66 connected instead of disconnected? Anything?

Jared

Havn't tried that, but might just in case the chip took a shit.

[Lobstrosity]

Sounds like the chip is messed up. If the guy who bought the chip tried it out and couldn't start with it, and now you can't either, maybe it got fried in transit, or the buyer fried it while trying it out.

[mazur]

Sounds like the chip is messed up. If the guy who bought the chip tried it out and couldn't start with it, and now you can't either, maybe it got fried in transit, or the buyer fried it while trying it out.

He was also trying to use it on his 506 DME, which I figured was possibly the reason it didn't work.


I'm not sure what to do now. I think I'm just going to change my CKPS and see if that fixes it. If not I'll get a new chip.