I just got my JDM DC header, hi-flow cat + VAFC installed. It felt pretty good, I just lower the vtec Xover point to around 5500..didn't touched the fuel because I will wait to get dyno tuned. But the problem is, I tried redline the car, when it hits 7000 rpm and up..the rpm started to slow down and felt like not enough fuel and can't even get pass 8000rpm as it felt lke I m getting cut off, what is the problem??
Can anyone help me with this??

 

..that you got it installed and didn't say that you did it yourself, I'm going to be under the impression that you DIDN'T do it yourself. When you disconnect the VAFC, did the same thing occur? Did you check the settings to make sure that whoever did the install didn't try and do a little "tuning" of their own?

 

nope, I didn't install it myself.......the installer tried to do a little bit of tuning.....but i reset it after...still.......same problem~!

 

Get rid of the VAFC, and get yourself a Mugen Ecu. Solve all your problems.

 

When you lower the V-Tec, Don't you have to adjust the fuel accordingly?

 

if you reset it, check that it is in the correct etc. settings, i.e. the number of cylinders of the car, and the throttle postition should be and arrow pointing NE, you should have 6 in and 6 out for the sensor type.

 

so, what the throttle postition should be??, arrow pointing NE ?? .......what should I put in as resetting it??.......I know I should get it dyno tune.but for now, I jsut want to set that thing back at stock so it won't FXXX up my engine..

 

anyone? help pls~~

 

^^^^^^^^^^^^^^^^^^^^

 

pls help ppl..^^