Well, I currently have a 90 Accord EX with an H22 Vtec Swap, only that it didn't come with the wiring harness so my mechanics used the harness form the accord and wired everything manually. Everything worked well, but from the start the Tach did not work and then it was idling really bad. I took it back and they fixed the idle. Now, it seems they moved location or are no longer in business and according to my dad (a mechanic for 25 years), the TPS may not be receiving the correct signals from the ECU sometimes because the car is running bad. e.g. I step on the gas and it starts to go and then seems as if I'm not stepping on the gas and then yes, no, yes, no... you get the picture. THEN, the check engine light will come on, but if it does, the car runs great! And when it doesn't, it runs bad... so I wanna get everything right on the car the way it should be instead of using alternatives. So I want the original harness and everything else that normally goes with the car.
Nothing wrong with Rywire, only that they want me to send in the harness, do the custom work themselves and then send it back to me... I'd rather buy the actual original harness right away.