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External fuel trim (Wolf V500 EMS)


hughdogz

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Hi Wolf Gurus,

 

I want to make sure I pass DEQ before Friday :D

 

RTz mentioned there may be (or is) a way to do this on the V500. I looked through the help and I couldn't find anything explicitly on this.

 

I figure I'd use some 5V source and a potentiometer...

 

Do I use the "Special Trim" fuel modifier and Aux Input LS1? If so, I'd probably have to do some work in both the calibration tables...

 

Has anyone done this yet?

 

Thanks for any help or advise...

 

Cheers, -Hugh

Edited by hughdogz
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Hi Wolf Gurus,

 

I want to make sure I pass DEQ before Friday :D

 

RTz mentioned there may be (or is) a way to do this on the V500. I looked through the help and I couldn't find anything explicitly on this.

 

I figure I'd use some 5V source and a potentiometer...

 

Do I use the "Special Trim" fuel modifier and Aux Input LS1? If so, I'd probably have to do some work in both the calibration tables...

 

Has anyone done this yet?

 

Thanks for any help or advise...

 

Cheers, -Hugh

 

Long time no see buddy!

 

I have and I was also pulling timing and adding boost. However, I abandoned the setup after my trial. I even used a metal box I picked up from an industrial electronics store and I installed 3 potentiometers inside. I still have the box and all the wiring if interested.

 

In order to do it correctly you need to use the multicontroller channels in conjunction with other inputs and then use the output from the multicontoller channels to the special trim features.

 

I use the multicontroller channels to pull fuel and add timing for my methanol setup based on methanol line pressure.

Edited by ktm
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Hey Bo, I've been wondering how you're doing! Good to see you're still active.

 

I totally appreciate the information. To be honest, I didn't have time to get the device made or configured in time for DEQ emissions testing.

 

But I still passed on the 2nd try! I failed the Hydrocarbons on the 1st attempt (1.0137% instead of 1 %). I adjusted the AFR's (by modifying the injection opening time, while waiting in line) to 16.5-17.0 at idle...whew! :lol:

 

I didn't even consider using external trims for timing or boost. That's pretty cool about the multi-controller trims for methanol injection. You're still way ahead of me Bo B)

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