EWS delete and I have a crank with no start

[sapote]

When I attempt to start it it cranks and fires once or twice and then dies.

This confirms that the new DME with ews delete works fine.If not the engine would never fire once.
Add a table spoon of engine oil to each plug hole and try again with full charged batt.

[bavarian3]

+1 to sapote . You would have a No Crank No start with an EWS fail.

If it was me, I would first be triple checking my wiring, then trying(unfortunately) another DME. What wiring method did you use to run the MAP and IAT?

[bigjae46]

+1 to sapote . You would have a No Crank No start with an EWS fail.

If it was me, I would first be triple checking my wiring, then trying(unfortunately) another DME. What wiring method did you use to run the MAP and IAT?

I had an issue where the engine would crank and crank but would never fire up after deleting the EWS. There is a wire in the fuse box that connects the EWS to the ECU. It was the only wire that just passes through the fuse box, it is not on any of the busses in the fuse panel. When I connected that lead to 12v, car fired right up. IIRC, it was fuse 12 or 14.

So maybe check that fuse.

[eacmen]

I too have encountered EWS issues that would yield a crank no-start as the op describes.

[D-O]

It's acting like the EWS isn't actually deleted. Maybe the tool isn't modifying the right value for the tune you're flashing?

This looks like the correct diagnosis.

I reflashed the stock CSL tune from a backup of the full bin file and then disabled EWS with the ecuworx tool. The car started right up.

I sent a copy to Bry5on so he can see what is different and get the Mullet dialed in for me.

The DME is used from ebay. It shows no physical signs of damage, tampering, or abuse, but it has sure been uncooperative.

[George Hill]

Crank and brief fire is 100% a symptom of EWS interference.

EWS affects starting in 2 ways.

Key to EWS blocks/enables cranking
EWS to DME blocks/enables starting.

EWS to DME issues generally manifest as a brief fire or no fire at all.

EWS to DME issues do NOT prevent cranking.

I know you already have it sorted by verifying it starts with the modified stock CSL file, just wanted to add this EWS info as I see it miscommunicated all the time.

[D-O]

Thanks George. That information will certainly help someone in the future. I recently quoted one of your old posts on a similar subject.

[sapote]

Crank and brief fire is 100% a symptom of EWS interference.

EWS affects starting in 2 ways.

Key to EWS blocks/enables cranking
EWS to DME blocks/enables starting.

EWS to DME issues generally manifest as a brief fire or no fire at all.

EWS to DME issues do NOT prevent cranking.

I know you already have it sorted by verifying it starts with the modified stock CSL file, just wanted to add this EWS info as I see it miscommunicated all the time.

Interesting.
If ews doesn't enable DME to start, by disabling ignition coils and fuel pump, how does engine run even for a short time with no sparks?

[D-O]

Interesting.
If ews doesn't enable DME to start, by disabling ignition coils and fuel pump, how does engine run even for a short time with no sparks?

There are disagreements about whether the DME disables both fuel and ignition, or just fuel.

[sapote]

There are disagreements about whether the DME disables both fuel and ignition, or just fuel.

I know for sure that when ews disabled the DME, there are no sparks. Thieves can easily bypass the non-running fuel pump (due to relay disabled).

[bigjae46]

When I was working through my EWS issues, I did not smell fuel which I should have with the amount of cranking I did. Then still no start with starting fluid. So I would guess that the ECU cuts fuel and spark.

[D-O]

I am thinking that a solution to this might be to align the EWS.

Does anyone happen to know if the virgininze feature in MSSFlasher will delete the EWS rolling code (ISN?) data in the DME? It is my understanding that the only way to align the EWS with a used DME is to delete the EWS rolling code data in the used DME. Can anyone confirm?

Most all that I can find regarding the virginize feature is that it should not be done. What is the intended use of the feature if not to clear the EWS rolling code and VIN? What exactly are the steps to restore the DME after virginizing?

What is the best process to align the EWS after virginizing? INPA has a "start value synchronization" function, with options to "transfer the start value" or "reset the start value." I would assume the transfer option is to write the rolling code from the EWS module to the DME, but it does not seem entirely clear.

Thanks.

D-O

[bigjae46]

I virginized my ECU. Huge mistake. It wipes out the DME so you have to basically program it from scratch. I don’t think it’s as easy as reflashing it. I don’t know what I did but got it working. Then I had issues when trying to flash a tune or connecting to ISTA/INPA.

[heinzboehmer]

Use DIS or tool32 to sync EWS. INPA has trouble syncing it on the CSL FW for some reason.

No need to do anything with MSSFlasher beforehand.