Need Help!! RPM's dropping

[XhaloZ]

Hey guys.... I just bought a new cold air intake and I bought this resistor off ebay that supposively boost your hp by 20. I am letting you know everything I have done and maybe you can determine my problem. I hooked up the resistor on 2 wires of the MAP. The map has 3 wires on my 93 Civic.. green and white, yellow and red, and another color I think brown... but anyways I didn't notice a difference so I threw the resistor away... well when I start my car it's fine... but after about 5 minutes I cannot rev it past 6k rpms and the more I drive the lower my rev limit goes and then my car just dies if I give it any gas.. but if I turn my car off and back on it works fine for about 5 minutes... and does the same thing.. and sometimes my cel goes on...what the hell?

[hany]

what i know the rpm wire is blue coloure

[XhaloZ]

Man it has nothing to do with the RPM wire.... god can I get someone that knows what the hell they are talking about...

[fiberglasscivic]

Have you double checked to make sure that you reconnected the wires to the right spot. Sounds like you may need to replace you ecu. When you installed the resistor did you have to do any soldering? Also, if you see anymore 20hp gains from a single resistor advertised, please post a link. I'm pretty sure that we could all use a good laugh. Never mind, http://cgi.ebay.com/Honda-Resistor-M...ayphotohosting Just for future reference this kind of thing isn't a good idea. I'm guessing you did the same thing and just plugged the resistor into place. It's possible that you fried something in your ecu. It sounds like something in your ecu is heating enough to break connection. That would explain why you can turn the car off and then back on and use it again. The time between shut off and crank is enough to let the ecu cool off. Each time you turn the car off then back on does it die quicker?

[XhaloZ]

Nah I jacked a new map sensor but it does the same problem.. and sometimes it doesn't do it at all... wtf???

[CivicSpoon]

How did you have to do, exactly, to hook the resistor up? Did you have to cut any wires or anything?

[fiberglasscivic]

CivicSpoon you use it to jumper pins in the connector for the O2 sensor. It causes a false reading to tell the ECU that the air is cold and dense (according to the info on the auction). It's suppose to give you anywhere from 5-20bhp (i guess bhp is bullshit horsepower?). The idea is that instead of jumping the pins which would definitely cause ECU problems, that the resistor instead sends a lower voltage than the full amount. Low enough not to damage the ECU but high enough to send a voltage reading to the ECU that represents cold dense air. The problem is that your O2 sensor changes constantly due to many variables and the ECU isn't used to a constant voltage. The O2 sensor simply acts as a variable resistor that changes resistance with temperature. I don't mean to insult your intelligence so please don't take it that way. I'm sure that this theory and the workings of the O2 sensor and ECU are nothing new to you. I just want anyone else that reads this to understand why jumping those pins isn't a good idea.

XhaloZ, just because you replaced your map sensor doesn't mean that your ECU couldn't still be jacked up. As a certified electrician who understands the way that your cars computer works, take my advice. Get your ECU checked out. You should pull the cover and look for brown circular spots on the board around the components. It's very possible that the resistor he sold you was such a low resistance that it simply shorted the connection between the pins, sending a higher voltage to the ECU that it was meant to handle. In doing so it could have easily fried another component.