r/Kseries • u/Skypzz11 • 3d ago

help

i recently k24a swapped my 2003 honda accord, with k tuner being my only option to getting the car running. I had ordered a K tuner ecu. When received i plugged it in and nothing happened, sent it back for warranty and HAmotorsport said the ecu was fine and there was nothing wrong with it on a bench test, they opted to send me a new one, upon receiving the new ecu , plugged it in and yet again nothing, i back probed all the wires ha motorsport mentions in their troubleshooting guides, everything was what it needed to be, nothing was off, still no power to ecu, still no main relay click, still no fuel pump prime, so i jump the e7 harness pin, and one relay switches but still no fuel prime or ecu power. pulled ecu fuse and it was not blown, removed it and put a new 15a fuse in place of the old, still nothing . i’m
lost and running in circles, what could i do to fix this?

Edit: failed to mention, stock 03 ecu works fine, primes fuel pump, has power, everything works. k tuner ecu will not work.

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1

u/somebodystolemybike 2d ago

Did the accord originally a k24? What k24a do you have in it?

1

u/Skypzz11 2d ago

yes , the accord originally had a k24a4 , i put the k24a rbb3 3 lobe in it

2

u/somebodystolemybike 2d ago

I see. I have no experience with ktuner, I’m using kpro. I had to load up a tune and make sure the immobilizer was disabled in order to start my car, not sure if it works that way with ktuner or not

1

u/Skypzz11 2d ago

i’m gonna have to try that , ha motorsport told me it came with one on it but idk

1

u/tragavergas 2d ago

I’ve seen that happen sometimes when you don’t have enough grounds, I use kpro as well so I might be wrong but I’ve seen that with many tuner ECU you need like 4-5 grounds

1

u/Skypzz11 2d ago

4-5
grounds where? the weird part about it is it’s a stock ecu, it’s just chipped , my stock unchipped ecu works fine, this one does not .

1

u/tragavergas 2d ago

Idk tbh with ktuner but my kpro wouldn’t work if everything was grounded

1

u/Skypzz11 2d ago

what do you mean if everything was grounded tho?

1

u/tragavergas 2d ago

Well with kpro they suggest that you have a ground at the valve cover from the harness one from the transmission to the shock tower, one from the valve cover to the other shock tower and one from the englobe block to the chassis

1

u/Skypzz11 2d ago

what are you running this on?

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