Anyone got any recommendations on which flex fuel kit is a decent buy, like the look for the buschur racing one and driven fab looks good also! Any advice would be appreciated!

 

For the 8/9 you don't really need a kit. Just buy the innovate gauge. Put the sensor in the return line in the engine bay between the fuel rail and hardline that goes under the chassis. Then wire the gauges analog output to the map switch pin. You can steal a pin from the EGR or EVAP output.

 

I did mine like this:

• Innovate Gauge w/ sensor(Amazon is the cheapest)
  Innovate Gauge w/ sensor(Amazon is the cheapest)
• 2 of these fittings, 1 connects the factory FPR and 1 connects to the return line(hard line)
  2 of these fittings, 1 connects the factory FPR and 1 connects to the return line(hard line)
• 2 of these
  2 of these
• 3 ft of -6 an braided line

Connect the output signal to pin 42(Evo 8).

**Make sure the gauge is grounded correctly as I had a ground issue which was causing inaccurate e% reading to the stock ecu.

 

The ECU pin is different between the 8 and 9, which is why I told OP to refer to the map switch diagrams that are easily found.

 

ahh, gotcha

 

FiTronic kit.
Nowadays can be software only, unique on Evo 8/9...

 

Except that the only person that tuned the FiTronic kit was Tom, and he doesn't even sell or tune them anymore. He sells the Innovate MTX-D E% & Fuel temp Gauge.

 

The above posts are right on the money. Just to addon, its pin 64 for an Evo 9. Also, in case you don’t want to take a pin from another ecu slot, SpoolinUp sells pins for both 8’s and 9’s on his website for cheap.

Don’t waste your money buying one of those “kits”. Recently a popular Evo/STi YouTuber posted two videos using $400 kits that were basically nothing more that just the innovate gauge/sensor that you can find for around $170.

 

I use the Innovate gauge on my GTR as well and think it is the best route. Racetronix sells the Continental Flex Fuel senders for $67.50 and I also buy all of my hose and fittings from them. They are very inexpensive and the quality is very good and I have never had their fittings leak.

https://www.racetronix.biz/c/engine-...t/sensors/c155

 

Tom still tuned fiftronics because my car is on it and I’m going to get a tuned from him in 2 weeks he has been tuning my car on that fiftronics for the last 3 years

 

What rom/patch should be used to take advantage of pin 64 for an Evo 9 and does that result in true flex fuel support? Thanks!

 

What about for the X platform. which kit is best? Driven fab, NRG OPS, WTF? thanks guys

 

Need for speed NY sells the evo x FF kit for a decent price.

 

You don't need a flex fuel kit for the X either. I got my friend's X wired with an Innovate gauge, and voltage output wire into the ECU, into The Fuel Tank Differential Pressure Sensor ECU Input is PIN 112

Get Tephraxmod V3 and enjoy flex fuel on the X

 

Anyone have an answer on this? D$