hi here is my problem
first of all i want to say sorry for mi spelling wich is not the best .
well 2 day ago when I was wiring up for vtec after I got my p72 ecu I had a solid cel light after 2000 rpm for some reason then I find out that my knock sensor wasnt right. I connect the knock sensor into the iab but then after I connect everithing right no cel light came up then I rev the engine so I can see if I had the vtec crossover and the engine stall at around 4500 rpm for some reason then after 20 sec of reving it up to heard the vtec crossover the engine turn off by it selft and i try it to start it is like there is no compression . and sice then is not runing
does anyone have a clue of what is my problem

 

did you check if you had spark?? change ecu and check fuses

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by racing_beat &raquo;</TD></TR><TR><TD CLASS="quote">hi here is my problem
first of all i want to say sorry for mi spelling wich is not the best .
well 2 day ago when I was wiring up for vtec after I got my p72 ecu I had a solid cel light after 2000 rpm for some reason then I find out that my knock sensor wasnt right. I connect the knock sensor into the iab but then after I connect everithing right no cel light came up then I rev the engine so I can see if I had the vtec crossover and the engine stall at around 4500 rpm for some reason then after 20 sec of reving it up to heard the vtec crossover the engine turn off by it selft and i try it to start it is like there is no compression . and sice then is not runing
does anyone have a clue of what is my problem </TD></TR></TABLE>

your knock sensor doesnt go into the iab's it needs to go to the ecu and you cant get the vtec crossover by reving you have to be driving, the iab's open at 5800 if thats what your talking about, hook everything up right then check your fuses and ecu

 

THANKS BUT WELL IF i WOULD KNOW THAT BEFORE i WIRE UP THE VTEC LOL **** NOW THE ENGINE WONT START IT NEVER COSS MY MIND THAT VTEC COME IN ONLY WHEN UR DRIVING OMFG ......

 

yea I have spark .is not working for some reason , I think is out of time ,
I have one more question guys , what are the symtom of a engine that is out of time would it still run if it was out of time , what make an engine go out of time .

THANKS IN ADVANCE ..........

 

arent eg's prewired for vtec?

 

92 ONLY

 

Also, if your car is cold like the first few minutes you crank it, it wont go into vtec. It has to be warmed up. Good luck with everything

 

we did a gsr swap into my friends 94 hatchie and vtec worked fine...no extra vtec wiring...who knows...good luck with your dilemma