2016 E4 High Voltage Conversion in SD

Tried to find the top end this evening… got a shut down around 42 mph. on the plus side, it’s more stable than the last config. I’m not getting errors on regen (although I should probably try this with some real speed going downhill). I had the front end of the body on so I couldn’t see the controller error code.

I have a delphi and serial connector coming in the mail. Going to make a maintenance port cable so I can hook up the laptop real-time.

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I am guessing about 48 will be your top end with 12:1 gears and stock wheels.
At this point real time monitoring will tell us the most.

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Is the max rpm in driveability lower than the max rpm limit?
Try lowering the max profile rpm a couple 100 rpm.
I can assume the the absolute max rpm setting will fault, where as the drive profile rpm will limit.

17" on order and in the mail. top end of 48-50 and i’d be happy. although the differential whine might get old… I’m sure 6 months from now I’ll want to do the @Old_Houseboater conversion

will investigate. have to head out of town tomorrow and not back until Sunday. am going to be in @AssyRequired 's neck of the woods and was hoping to deliver him a Ford Think differential. Ebay seller hasn’t been terribly communicative. :frowning:

I think my baseline RPM is set at 9500.
I don’t error out at over 60mph on 10:1 gears.

It can be programmed to read motor rpm as well.

Any ideas? Wire routing? Ernie is running your dcf now.
Less voltage.

Maybe wiring. I don’t want to say it but I am still thinking throttle voltage. You have had good luck. I did not and that is why I went to single pot. I know Gabe had to play with his voltages to stop the errors.
Having the laptop hooked up will tell the tale.

you thinking encoder wires from phase cables? I’ll say, they’re more spaced than factory right now. I zip-tied the encoder wires as far way from the phase cables as possible, learned after troubleshooting my 2000 AC conversion

Max is still getting the 40mph shutdown.
I’m not 100% sure that controller p1 is not glitching. An easy one to test by jumping the 72v contacts in the controller relay.
If throttle, the fault code will tell. I expect it is throttle position not speed that would set a throttle fault.

Grasping at straws. Something that is common to you and max. And also both dcf files.
Maybe limit rpm for some testing below 9k rpm, to see if it’s speed related.
A throttle problem will still fault at the lower rpm.

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i need to do more testing while driving… and having the laptop hooked up. Error happens when I peg the throttle. i’d be curious if I found a big long hill to go down, with limited throttle, would a MPH still fault it.

Sounds like throttle fault to me. Try top speed at 90% throttle like you suggest.

Test for another day :wink:

I have a 1.5 mile, steep hill i can try on though

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Interesting, in my case

First half throttle is dead. I might hook DVT when I come back and see if I can fine tune it… but since it took me a few headaches at the beginning I didn’t want to touch it again once it worked

I’m not sure about final speed. Max I’ve tried was 47mph @MaxAtMaxMarine knows where I live, I don’t have a nice road to test it. But Mine is not something you guys can compare because I’m running at more voltage and 10:35 Trans

me too… but I look at it like the friction point on a clutch, once you get use to it, you’re good.

think the answer is to do some testing with the laptop hooked up. I’ll circle back Sunday

Definitely, that’s the way… laptop on passenger seat and fine tune it on the fly.

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Hey guys any update?

I had to shoot out of town. Will mess with it more tomorrow

Max is on it. He suspects throttle noise ingress.
What is your running status? Any trips or throttle issues?

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