i have a 92 civic lx with the d16z6, every time i take it past 5,000rpm the check engine light will come on. The car will run fine with the engine light on and i can shut the car off and start it back up and the light will go away. As long as i drive it normal the light will never come on....does anyone have any ideas???

 

vtec engaging? did you pull the code?

 

VTEC pressure switch broken?


pull a code from the ecu, will be 100x easier than trying to figure it out like this.

 

i have a vtec controller and it lights up showing that my vtec is engaging. no i have had a chance to check the code yet.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by civicz6lx &raquo;</TD></TR><TR><TD CLASS="quote">i have a vtec controller and it lights up showing that my vtec is engaging. no i have had a chance to check the code yet. </TD></TR></TABLE>

you'll have to get the code before anyone can help. But don't be suprised if your vtec controller ends up being the problem. They are notorious for causing more harm than good.

 

alright i check the ecu and it flashed 7 short times, and the other code was 2 long and 2 short. ? any one help with that?

 

o by the way it was throwing the check engine light way before i hooked up the vtec controller

 

7 is TPS, and 22 is vtec oil pressure switch. do you know where those sensors are?

 

ya i know where the sensors are, but for the vtec oil pressure switch will i have to change the whole vtec sol. ?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by civicz6lx &raquo;</TD></TR><TR><TD CLASS="quote">ya i know where the sensors are, but for the vtec oil pressure switch will i have to change the whole vtec sol. ?</TD></TR></TABLE>

first make sure you have enough oil in the car. then check the solenoid screen and make sure its not clogged. Did you lower the vtec engagement with the vtec controller? If so, maybe you aren't making enough oil pressure at that rpm. Also check the wiring and make sure that is good (mainly the ground) before you start buying new parts.