ok heres wats goin on i got a b18c5 in my 95 ej and it runs great i had a code 10 untill yesterday but now no CEL. yet i have no vtec . ive swaped my vtec selenoid and my computer with my friends and nothing it still wont pop we grounded the selenoid better and nothing .....just installed oil pressure guage oil pressure is fine so i dont kno wat else to look for or fix.... its to the point that im completly lost ........anyone have an idea of wat it could be??????????

 

Not to sound like an ******* or anything, but those are VTEC ECUs correct?

 

yes of coarse mines is p28 and my friends is a gsr ecu!!

 

Check the wire from ECM to the VTEC Solenoid.

Check the VTEC Solenoid's Oil Pressure Switch.

 

Check continuity between the ECU harness and the VTEC solenoid and VTEC oil pressure switch using a voltmeter.

 

Is the wiring correct? Is VTEC ran from the ecu to the engine harness? What trim level ej do you have? If you are using the C5 harness, and putting it into a 95 civic dx, you still need to run a couple of wires from the ecu to the engine harness.

Make your next response count, you can only have 5 posts a day.

 

ok the oil pressure switch is fine i also changed it yesterday ..... i have to check for continiuity ...... Another thing i just noticed on my car is that were the #1 spark plug is there is alot of oil wat could that be??would that have anything to do with the vtec not working??

 

its an obd2 harness and i have a 95 ex

 

So I take it you are using a jumper harness? Oil at the end of the plug? Like in the combustion chamber or where the wire plug onto it? That wouldnt cause VTEC not to work, unless you are too low on oil.

 

ok last night i fixed the prob the vtec wiring was not correct then i hit vtec 1st aND 2ND gear and my car shuts off when i stop try to turn it on n nothing ..... i check for CEL it was throwing a 21 and a 3 witch i think is vtec switch and map sensor .........i was messin wit the wires this morning and now no check engine its like it throws those codes at will or somethin???any ideas????