i have a 96civc 2dr dx/01 gsr motor,with basic bolt on's,and im also running with no cat.now heres the thing.sometime when i drive, my vtec works just fine.and sometimes when i go to hit vtec,my rev limiter wont go past 5000.and my car just shakes,at first i thought maybe i did not have enough oil in my car to hit vtec.so one day i did a full tune up and oil change.and soon as i pulled off into the street and step on the gas to hit vtec,my car did the same thing.I even reset my ecu,and i was able to hit vtec and everthing seem to work fine,then the problem came back.so can you guys help me fix this problem.

 

maybe the plugs for you vtec or maybe bad ECU..

 

ok listen i just finished having the same problem a few hrs ago i have a 2000 ex coupe with a b16a4 sir2 for the vtec there r 3 wires that make it go on if its a jdm motor u only need the 1 green wire that goes directly to the vtec solenoid the other two near it just cut off the sensor and attach them 2gether and it should work mine was also dieing at 5000 that fixed it also what computer u using??

 

my buddy had a del sol that did the same exact thing...its ur ecu more than likely...someone sent it to him and the chip was bad they sent him another one and it ran fine...so im guessing ecu...gl

 

Well my motor is a usdm 01 gsr,running off a 97ecu,so I don't know if that's the problem.and in case you are wondering why I'm useing a 97 ecu,is bcuz it came with my motor swap and I'm trying 2 stay obd2.

 

u got a bad ecu i just fixed that problem on this kids 96 civic wit gsr swap... other than that it might be a dizzy problem...... but more than likely its ur ecu...

 

Ok I'll look into getting a ecu,now should I find another 97ecu or a newer year ecu.and how much do ecu go for?thanks for the feedback from those that left some.thanks a lot.