Hondata

I'm having a problem with my K-Pro; when i plug it in and put the key in the on position it says it is connected, but when I start the engine a few seconds later it says that it is dicontected. I can upload base map setting and ut them on my ECU though. Along with this I have surging idel and definitive way to get rid of it???? Also my brake lights won't turn off even when the car is off does this have anything to do with K-pro??
PLEASE HELP!!!!!!!!!!!!

What spark plugs are you using, brand and part number?

I'm using stock RSX type-S spark plugs...should i replace them? When I try to start the car it take quite a few cranks before the car fires up. Could there be a problem with the ECU itself?

Any other idea what it could be? I really need to get this fixed sould I send it back to Hondata?

I do not work for hondata.

You seem to be having the all too common disconnect problem. The laptop is losing it's connection via usb to the ecu. There is probably nothing wrong with the ecu.

The steps to address this issue are, in order you should try them:

1) Ensure your car's grounding is good. Ensure you have moved your ground to the engine head as instructed in the k-pro paperwork you received.

2) Try using a shielded usb cable with iron ferris loops at the ends (heavy buldges that the cable travels through at each end of the cable).

3) Try using another laptop if available

4) Try grouding your computer to your car's frame to ensure proper common ground (this worked for me -- I use an dc adapter for my laptop so it's plugged into the car's cig lighter -- you can easily run wire from a grounded bolt to one of the screw ins on the back of your laptop for a quick ground. If you're curious, measure to see if there is any voltage difference across the metal parts of your laptop on the back and the frame of the car with a multimeter.

Additionally, aftermarket ignition systems modifications have been known to release a lot of EFI. If you are not using the factory individual coil setup, that is probably your issue.

Hope that helps.

Wayne

Hey Wayne thanks a lot everything on your list I've tried except for the cabel...do you know where I could get one from? Thanks for the help....atleast someone is attempting to give me some customer service. :roll:

Infomation about the sparkplug issues can be found at http://www.hondata.com/techksparkplugs.html

Without pulling the plugs and verifying part numbers there is no way of knowing that is not the problem.

Also there are some fairly easy to follow troubleshooting steps listed at http://www.hondata.com/techkpro_troubleshooting.html

The fact that you did not receive an immediate response does not indicate a lack of support, it just means that some of us sleep at night.

Flash202 wrote:Hey Wayne thanks a lot everything on your list I've tried except for the cabel...do you know where I could get one from? Thanks for the help....atleast someone is attempting to give me some customer service. :roll:

I do not work at hondata

If you've ruled everything else out that Spunkster and I have suggested, you can try making a grounding cable as a last resort. You will have to make the cable. All it is is a strand of speaker wire from radioshack with a crimped/soldered eye connector on each end, or optionally a alligator clip on one end (whatever you can ground to the car easiest). Then you get a small screw from the hardware store or radioshack that is the same thread size as the screw ins for the ports on the back of your computer. That's the basic idea. If you are uncomfortable with doing that, perhaps enlist the help of a friend who is skilled int he arts of car stereo install or stop by a car stereo install shop and ask them for a strand of speaker wire with small eye connectors on the ends. It would take them just a minute to fab one up.

I'm more of a fan of simply using a dc laptop adapter with the cig lighter, but either should establish a common ground.

Hey thanks for the help...no offense to you spunkster just real frustrated everything on this car seems to be a problem... :(

Wanted to know if it is ok to use the stock grounding braided aluminum cabels? or should I get new wires? Also does the ground on the head of the engine have to be the front center bolt on the head?
Thanks!

There are no aluminum cables in the car. All the grounds in the car are copper. Instructions on how to relocate the manifold ground can be found at http://www.hondata.com/techk20ground.html.

The link you gave me doesn't work and the grounding cables are from a 1996 Civic...I have an engine swap.

If i have OEM spark plugs would the spark plug problem still occur? Also my ECU is indirectly grounded to the head of the engine through the frame of the car....is this ok or must it be directly grounded to the head of the engine? Comes up as grounded when checked with a volt meter.

You will need to check the part number on the plugs themselves and see what they are.

What do you mean the engine is grounded to the ecu....if you mean the case of the ecu it has nothing to do with grounds.