How do i fix this problem if I am bouncing off of a 7100 rev limiter. I have a skunk2 PR3 ecu as well.

 

Do you have any error codes?

 

Usually if V-tec isn't engaging it will bump your rev limit down to 7100. Are you sure your VSS and knock sensor are good. Are you throwing any codes??? If your v-tec is still engaging dunno what may cause the lower RPM.

 

Make sure that you have no trouble codes, and that there are no mechanical problems as well. Certain trouble codes can lower the rev limiter. Also make sure that your engine is warmed up, and that you have sufficient oil pressure. I know that my answer is kind of broad, but check these basics first.

 

I got two error codes, but i don't know how to check them
its 6 and 7. They are the Engine coolant sensor and Throttle Position Sensor. I don't know whether to replace the harness or replace the sensor? Is there a way to check the sensor? And if i do have to replace teh sensor what am i looking at to spend?

 

i had the same problem, for me it was because it was throwing a code, for me it was my coolant temp sensor. first make sure you dont have any codes

 

90civichbsi how would i go about to fixing the codes??
like how do i check the sensors??

 

TPS you can test it, forgot which wires but should read 0.5 volts closed throttle and 4.5 Wide Open Throttle. My bet for the no V-tec is Coolant temp sensor. If its a 90-91 B16 it should have a 2 prong plug in the back above the oil filter. If thats not hooked up thats reason for your problems. Never known of these going bad but if it is bad you can reuse your old one it just unbolts and bolt back in. Also once these are fixed you need to reset the ECU... Pull the underhood fuses for ECU and Hazard for about 15 seconds and should be good to go.
Good luck

 

so most likely i will need to get my ECT sensor to be fixed so VTEC will kick in, in other words.

On my exhaust manifold i have 2 sensors and only one hooked up, could that cause a problem as well??

 

it wont prevent v-tec it only sense the fuel mixture for 2 of the cylinders while the other one senses the other 2, I would hook it up of cours will help lower rpm running but not much wide open. I would check quickhonda.net and see if they still have the helms manuals available it will tell you how to test the TPS.

 

using only one 02 sensor does not effect vtec engaging, but that doesnt mean you shouldn't be using both of them. Your motor will run better if you use both (unless the skunk2 ecu disables the other).

 

I'm not sure if my Skunk2 disabled it or not, but I do know its not hooked up. But its my ECT that is most likely causing my VTEC not to kick in right. I will check it out today after school. But is there a possibility taht the wiring harness is bad as well?

 

another thing that bothers me is that my radiator fan does turn on?
so wouldn't that mean that my engine coolant temperature sensor is working?? Since the radiator fan turns on?

 

Does it stay on all the time?? Or does it turn on and off?? It should turn on and off, if its always on its more then likly straight wired. Is your temp gauge getting above the C or staying right around it. Vtec will not work if not at normal operating temp also.

 

vtec, not v-tec, ok?
i had this exact problem after i did my swap. the ECT on a 1g b16a is on the passenger's side of the engine, it has the same size plug as the vtec oil pressure, which is in the same general area, so make sure the two plugs aren't on the wrong sensors. if you need a new sensor, it's like $31 at the acura dealer. keep us updated.

 

almost positive that the coolant temp on 92-95 is on the part for the thermostat but in the back of the block for 90-91's. Please let me know. If you have aB16A it could be any gen if its a JDM

 

a lot of people had this problem before.....if you have a check engine light your vtec wont work

 

the fan does turn off and on, and i don't got an engine check light lighting up, and my temperature guage does move. So i don't know what else to do. but i guess i might just change the sensors than.

 

its a first gen b16.

 

should my engine light come on if i'm getting ecu errors??

 

Either the TPS or coolant sensor will be the problem. Replace them botha nd it will be fixed. Neither will allow VTEC if it isn't working.

 

where are the sensors located?
and how would i check them, i checked quickhonda.net
but it doesn't say much about b16 motors

 

when i got the code 6, i swapped the coolant temp sensor w/ the one off my d16, but it ends up that it wasnt the broken, i found out it was the wires one the back of the connector were touching giving the ecu the wrong reading.

if you have your old motor, try swapping out the sensor first and see if that fixes it

btw the sensor is located under the distributor

you will find the b16 shop manual here http://www.hondacrx.co.uk/, it has pictures of the sensors



[Modified by 90civichbsi, 2:11 AM 10/29/2002]

 

thanks, i'll check it out in the morning, hopefully i can fix it myself.

 

okay i tested the sensors, appearantly the ECT Sensor is probably screwed since i'm not getting any readings from it. It goes right back to zero. So i'm assuming the ECT sensor is screwed. But what i don't get is that the fan does turn on though? Can anyone explain this to me? And the throtle angle sensor, the wires look good, but i don't know how to test the sensor. Can anyone help?