EflexFuel Kit Installed
Thread Starter
Member
Joined: Nov 2017
Posts: 230
Likes: 30
2013 c63 amg dev pack
Post up a pic. I found that the pins only like to go in one way as they are flat, not round. Once you find out which way to insert the pin, repeat it for all of them. If you have to force them in they aren't oriented correctly. They should pop in smoothly. Lots of light and good magnifying glasses made the job easier for me.
Last edited by Doc Oc; May 24, 2018 at 12:13 AM.
Thread Starter
Member
Joined: Nov 2017
Posts: 230
Likes: 30
2013 c63 amg dev pack
Can you possibly take a pic like your second one but with a pin in the picture as well? The pins in the first picture look larger than they should, but I can't tell if it's just the perspective. Where did you remove the purple clip from? I don't ever remember seeing that piece.
Junior Member
Joined: May 2017
Posts: 22
Likes: 1
C63
See the purple insert (thats what usually locks the pins in place) but I think i got the incorrect harness as the pins/male blades are too big for the plug adapter. Hopefully VRP can chime in. I tried calling them but keep getting there voicemail.
MB World Stories
The Best of Mercedes & AMG
6 Mercedes Models That Did NOT Age Well (But Are Somehow Still Cool)
Verdad Gallardo
Manual Mercedes? 6 Times Sindelfingen Let Drivers Have All The Fun
Verdad Gallardo
Mercedes SLR McLaren 722 S Is Extremely Rare Example Modified by McLaren
Verdad Gallardo
8 Classic Boxy Mercedes Designs That Have Aged Like Fine Wine
Verdad Gallardo
Flawlessly Restored Mercedes 190E Evo II Heads to Auction
Verdad Gallardo
Electric Mercedes C-Class Unveiled: 11 Things You Need to Know
Verdad Gallardo
Mercedes EQS Gets A Major Update: Everything You Need to Know
Verdad Gallardo
5 Underrated Mercedes-Benz Models That Don't Get the Love They Deserve
Verdad Gallardo
Mercedes 300D Has Pushed Well Past 1 Million Miles and It Ain't Stopping
Verdad Gallardo
Thread Starter
Member
Joined: Nov 2017
Posts: 230
Likes: 30
2013 c63 amg dev pack
From the pic it certainly looks like they've got the wrong size pin for the adapter. Wish I could take a picture of one of mine for comparison but they were small enough that you could hardly tell if they were flat or round.
Last edited by Doc Oc; May 25, 2018 at 12:36 AM.
Member
Joined: May 2016
Posts: 98
Likes: 20
C63 P31
I tried installing mine with 550cc injectors, which required cutting and soldering. I could not get the car to run without multiple misfires. After many, many hours I ended up removing the harness and hard wiring my OEM one back in. The car runs great with the 550cc injectors.
I'm not sure if the box is faulty, or my wiring was bad. I couldn't connect to the box through the app, it would pair, but never connect to it. This leads me to believe the box is faulty.
I'm not sure if the box is faulty, or my wiring was bad. I couldn't connect to the box through the app, it would pair, but never connect to it. This leads me to believe the box is faulty.
Thread Starter
Member
Joined: Nov 2017
Posts: 230
Likes: 30
2013 c63 amg dev pack
Did you check the pins in the box like the poster above? Also, if you hardwired it, how did you handle the one lead with the double red wire? That second wire is how the box gets full power so it may be that the box isn't getting the voltage it needs which would lead to misfires and no connection. Just a guess there....
Listen, if you bought from VRP, something looks wrong. Quit effing with it and have VRP express out a new kit to you and send this obviously wrong one back. PM "Victoryroadperformance". They were just active in this thread a week or so ago!
Member
Joined: Oct 2017
Posts: 176
Likes: 11
'10 C63 P30
Doubt this affects many (if any) BUT, if you run e85, cats and any zddp additive or extended-life/diesel oil, the following is worth a read...
https://itstillruns.com/effects-etha...-12172217.html
my PSA for the day
https://itstillruns.com/effects-etha...-12172217.html
my PSA for the day
Junior Member
Joined: May 2017
Posts: 22
Likes: 1
C63
JonM try rechecking the polarity on the injector connectors. Do you have access to read the fault codes? that will help in diagnosing the issue. I had #2 cylinder wires reversed and it gave me a open signal on #2 but also multiple misfires on first start up attempt. Everybody else, thanks for your help/input I have hardwired the eflexfuel harness, the reason why they sent me this harness is because I purchased the 660cc injectors along with the kit so that's why I have the EV1 type connectors on the other end. car runs great but I now have an issue with connecting to the app. I have email eflexfuel and they are working with me on getting this issue resolved.
Member
Joined: May 2016
Posts: 98
Likes: 20
C63 P31
I tested every connection and labeled the 12v source on the OEM side - no chance of confusing the wires. All positive wires were matched with the OEM positive wires. Perhaps the harness has issues, but I sent the control box back to see if that fixes the issue.
Member
Joined: Jul 2016
Posts: 90
Likes: 11
From: SoCal
2009 C63 AMG
I had misfire issues when i installed my kit. Make sure the harness isnt kinked... and try flipping the connectors to see if the misfire follows. I ended up having a bad harness and having to get a replacement.
Newbie
Joined: May 2018
Posts: 7
Likes: 0
m156
It’s the pins at the connectors, some kits are using a very thin pins vs others. 2 out of 3 of my kits had tiny skinny pins vs 1 of them had a slightly larger thicker pin connectors that solved all my random small minor misfiring.
if you have a very bad misfire and the car barely wants to run start at the main connector and look and see if the orange cap is seated, I had a kit where it was forced in and a wire was never making contact with the box to begin with.
Also I cut the heat shrink off on my new kit so I didn’t have to fight it.
if you have a very bad misfire and the car barely wants to run start at the main connector and look and see if the orange cap is seated, I had a kit where it was forced in and a wire was never making contact with the box to begin with.
Also I cut the heat shrink off on my new kit so I didn’t have to fight it.
Junior Member
Joined: Feb 2017
Posts: 15
Likes: 3
From: Hampton Roads, VA
2009 C63 AMG
Hey everyone! Thanks for the help! I figured out the issue. I was dumb and didn't check the wires for which was power because I assumed the obvious that red must be power. Wrong! My oem power is a black wire so I had 4 cylinder's injector power and ground wire mixed up. Everything is running smooth and just filled up today with full E85 and can already tell a difference as well as temp difference. Now I just need to get that custom tune from Jerry😉. This was definitely worth the price compared to the other kits. Cheers!
