i have a 95 civic coupe. D16z6, when i take it up to about 6k almost 7k in 3rd or 4th it varies the engine light will turn on... the car will run perfectly fine and as soon as i shut it off completly with key out and start it again the code goes away. so i cant do the paperclip trick. anyone know what it could be or how i can run a cel test with engine on? thanks

 

You can jump the service connector without shutting the car off.

 

how i tried it and it would not blink.

 

anyone have a clue to what it could be?

 

If the light stays on you got some trouble shooting to figure!
But if it blinks it blinks just count the blinks!

But it could be a bunch of things, like you name any part inside your car and it just might be that one , see what I'm getting at! More info pls

 

If you are unable to read any codes and the CEL comes on olny while your driving @ 6k-7k rpm.

Does the CEL flash or go solid at those RPMs? If it is flashing/blinking then I would say that it is a misfire issue. Check your ignition and fuel system. Plugs wires, cap and rotor would be the first thing to check.

 

Its solid and like I said even when it turns on car runs perfectly fine, maintenance is up to date. And I tried with car on and no luck.

 

Are there any other lights that are on along with the little engine light? oil, D4 flashing, ABS, SRS....etc etc......

 

No jus engine. No abs. And it doesnt flash jus solid.

 

im going to replace water pump because i can hear it starting to go bad. which includes timing belt, tension pulley, and pump so i will see if after im done with that i can make a video and post a link so you guys can actually see what is happening and how it turns on.

 

ok i finally got the engine code it read
-Vtec pressure valve. code 22 it was 2 one sec blinks and 2, .5 sec blink. checked wires for omhs and they were in spec and to remind u guys it only happens in 3rd or 4th gear around 6,000- 7,300 rpm so any help would be nice. engine is d16z6 with I/H/E if it happens alot with alot of mods i will name all if needed but other than that I/H/E is fastest explanation. thanks

 

another update on research... oil level is fine and i change oil every 2500 miles i use mobile 1 Fullysynthetic... if oil pressure was the problem wouldnt another engine code come up or even oil light??? thanks for any help.

 

never mind thanks for all the help. i bypassed the pressure valve so it doesnt turn an engine light anymore and runs better than ever now.

 

clean the solenoid filter...

 

i didnt know there was a solenoid filter? where would that be located and do i have to remove the whole asembly? also how do u clean it? will carb cleaner do or is there a procedure? thanks

 

ten seconds on google:
http://preludehaven.forumotion.com/t...enoid-cleaning