Hondata

Awesome! Thanks for coming through. I started a thread on k20a.org before coming here, I didn't find that when i searched the site. Thanks again.

Well i guess you don't even read the posts, since i've read the Help section a few times, and no where does it say what kind of Output signal the ECU will produce. And the first few responces to my questions were way off base. I know hondata is a busy company, but I would rather wait a few days for ...

The nitrous solenoid is built into the Zex control unit. It has a relay built in that switches the Solenoid on when it sees the 4+ volts of the TPS.

How many Volts does the Kpro ecu send out to activate the relay that powers on the Nitrous solenoid.

Hondata is going to tell you, and with good reason, that you have to have a certified installer/shop install Kpro. If you want to retain any kind of support or warranty.

It would be best to not use the zex controller and just use the Hondata nitrous controls to activate and adjust the amount of fuel and the amount of timing retard you want.


The kit is a dry kit. So i will have the Kpro control the fuel and timing. I want the Kpro to activate the WOT switch built ...

OK, so i've been doing my reading about installing a Zex dry kit that i just picked up. The only problem is most of the install guides don't use the ZEX kit. My kit has the big purple "brain" with 3 simple wires. A ground, a positive, and a wire that goes to the TPS. I want to run this through my ...

I'm tuning my Nice little budget k20a2 motor. It has BC stage 2 cams and supertech valve springs. One thing i noticed is that if i lock the VTC to 0* i get little to no knocks. But as soon as i let the VTC roll forward at all, i start getting tons of knock. Knock that ignition timing and or bettr ...

When i had my built K24, I ran it at 16.5:1 on a trip to Chicago from detroit. I got 36mpgs in my EP with the stock 5 speed (3.8K Rpm cruise)

When i took it off open loop, i never got over 31mpgs on pure highway driving.

Any chance you guys could make a Real time MPG monitor for Kpro?

Wow, 19:1 is really lean.

I was just reading a Honda tuning artical. They had put a base RSX on the dyno and were measuring Fuel consumption at different AFRs. According to them anything above 15.8 required to much increase in Throttle and ended up using more fuel.

But i don't know if that ...

I have a k20a2 in the civic Si, and I'm not really interested in power at the moment. I would however like to really push this motor to it's Economy limits. How lean can i tune the lite load and cruise, to yield the best Fuel economy.

I have a
K20a2.5 (K20a3 with a2 pistons, and a2 head)
DC ...

Hey guys,

I just put my motor back together. I got everything running, but my low batterly Lamp light is stuck on, And i know the battery is fine. 12+ volts with the motor off, 14 when idleing.

Also i'm only getting a constant 0.4V Reading from the knock sensor, which is throwing a Low voltage ...

You will need to talk to your engine builder to see what is safe at what RPMs and cam angles.

I'm not talking about what is a safe RPM range for my motor. My motor was made to spin up to about 8k max. it makes peak power at 7300. But I'm just wondering if setting the Vtec minimum speed to ...

I just have a quick question.

I have a k24 in my Civic and it make more power then I can put down. I was wondering if I could set the Vtec minimum speed to something like 25 Mph so i won't enter High lobe untill late in first gear. This way i can keep the Tq down closer to a level my tires can ...

Thats not what it looks like on my datalogs when i hit boost cut. You'll notice that even after you hit 8.1k the injectors are still working at 13ms and they don't drop down untill after the TPS starts coming down. When i hit the limitor in my car the injectors turn off, and the injector duty and ...

car: EP3
ecu: PRB
block k24a1
headed k24a2 with k20a2 valve train and VTC gear


So i've been trying to tune my k24 frank with 11.5/1 CP pistons and forged rods. Stock head. It has proven to be a big problem.

At first i was getting hundreds of little knocks on a single 3rd gear pull. So we dropped ...