i just put chrome on my p28 for my sohc i set it to 5500 for vtec to pop it worked good for like 3 times driving the car all of sudden the vtec wasnt popping anymore do you think o2 sensor went bad or to much oil in the motor can you guys help me out thanks

 

If it popped a few times its probably something in the tune. Check the connectors and oil level any way tho. Do you have a cel?

 

upload the BIN, what did you do just mod the vtec engament point? that doesnt really do anything. anyways upload the BIN so we can check it out.

 

i found out what happen i was running on a p30 map with 2 step and what happen was that i had to disable the 2 step because any time i used it would disable the vtec but thanks alot guys