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need help with first start using Wolf V500 EMS


rossman

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Well, I tried and failed to start my engine for the first time this weekend. The engine turns over with no signs of combustion. No kicks, jerks, backfires, nothing. There is a strong fuel smell after cranking for several minutes.

 

I have the following setup:

 

L28

Wolf V500 EMS

RC 660cc low impedance injectors

LS1 coils (6)

GM IAT sensor (open element)

GM coolant temperature sensor

Aeromotive A1000 fuel pump

Aeromotive A1000 FPR

Aeromotive Pump Speed Controller (drops the pump speed in half below 1500 rpm)

Wolf internal MAP

Ford 65mm TPS

 

The crank damper mark coincides with the 0 degree timing mark when cylinder #1 is on TDC compression stroke. In this position, the dual slots on the distributor wheel are hidden under the optical sensor.

 

I calibrated the TPS by checking the voltage closed and wide open and entered those values into Wolf. The live display shows the correct throttle position.

 

The fuel pump kicks on and the fuel pressure goes to ~43 psi at the fuel rail during cranking. Once cranking stops the pump shuts off and fuel pressure drops down to 10 psi or so.

 

My inductive timing light flashes when connected to #1 indicating that it's producing spark. Plugs are gapped .028"

 

The fuel and ignition channels wired up such that cylinder 1 corresponds to channel 1, cylinder 2 corresponds to channel 2, etc.

 

The map I am using is based off KTM's L6 map. The only things I changed are the injector open times (scaled 450/660) and I disabled all the channels that don't have a function with my setup.

 

In Wolf software "Ignition Trigger Offset" and "Injector Pulse Offset" values are set up as 0, 4, 2, 5, 1, 3

 

I timed the engine by setting "Ignition Lock Fixed Timing" to 0 degrees and adjusting the distributor and Ref BTDC until the damper timing mark lined up with 0 using an inductive timing light connected to cylinder #1. "Ref degrees BTDC" is at 75 degrees.

 

Here are some of my observations.

 

The 75 degrees "Ref degrees BTDC" doesn't really make sense to me. It seems like it shouldn't be more than 10 to 15 degrees to get it right on the mark since the dual synch slots were just ahead or right on top of the optical sensor when I verified the damper mark corresponded to 0 degrees TDC compression stroke.

 

The injector voltage with the ECU on and not cranking is ~4.5 volts constant. I thought there should be 0 voltage until the ECU grounds the individual injector.

 

I pulled the plugs after cranking for some time and they appear to be dry or at least not dripping wet.

 

There is a strong smell of fuel in the engine bay after cranking for some time. I cannot find any leaks in the fuel system.

 

I can email my map to anybody who is willing to check it out.

 

Thanks in advance for any help.

 

Ross

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You covered all of the basics in your first post. Probably why you got no replies. Spark present, fuel present, timing checked. Doesn't make sense that you don't even get a pop, unless you have zero compression...

Edited by NewZed
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This morning I set the coils in a wasted spark configuration (each of the 6 coils fires every 180 cam degrees). It now acts like it wants to start. As I'm cranking it catches for a second, engine speed jumps a little but doesn't start. It does this every few seconds. I sprayed some starter fluid into the intake, started cranking again and got a big backfire through the intake. For sanity's sake I checked again that cylinder #1 is at TDC, cam lobes are up, and crank damper mark is on 0. I think that my timing is off somewhere in the ECU. Any suggestions?

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Here is a video of me

.

 

I was waiting for you to growl at the video camera near the end,lol.:angry::P

 

I have the Wolf 3D still new in the box and have yet to install it.

 

But it really sounds like the cycle of compression is missing the ignition timing fully. You are close.B)

 

Your engine bay looks great btw !

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  • 4 months later...

Yes I did. It turned out to be a timing and ignition sequence issues. I got a timing wheel and discovered the timing was off about 8 degrees. The ignition sequence was off due to...uh, user error :).

 

 

When I did my first install my ignition sequence was off too. :) Batch fire (or single coil) is oh so much easier.

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