ok i know that most of you here are gonna jump up and say check the oil, wait for it to warm up, the pressure has to be right and all this other stuff. this i already know because i have been workin on hondas since i was 14. anyway im confused as hell for one of the first times over a honda motor. my vtec wil engage at around 5000 like it should. (b16 w/ obd1 p72) and it will then shut off around 6700 with my car then hittin rev limiter at around 7400. my dipstick says that i have plenty of oil but if i add a little (1/2) it will run fine. Now my problem with this is that my oil is already full which i checked and rechecked on the dipstick. i know over filling the oil is bad but shitty vtec seems worse. could my solenoid be a little clogged? therefore requiring more oil/pressure to open it. i dunno im just confused off my ***. oh and i also just advanced my timing according to jdmfan.com however i forgot to jump the service connector so would putting that back to stock settings fix the problem. somebody help

 

Check your solenoid screen.

 

since i havent worked with the solenoid or screen before but have done pretty much everything else what do i have to do to check the screen?

 

sounds more like you have a P28 ECU with that rev limiter. is it custom chip? any check engine codes?

 

clean it with break cleaner. after it is clean lube it with regular oil and put it on and see what happens.

 

ok how do i take the solenoid off the head? i havent messed with the vtec system before. also yes it is a p72 cause when its running right i limits at 8200rpm

 

i think it just three bolts and a plug right???

 

maybe 2 bolts and a plug but, it's bolts and a plug and that's it.

 

should i drain my oil or just let it cool first. like will it leak out when i take that off?

 

ok guys im gonna add a little oil just so it runs right on my way home then im gonna start rippin stuff apart and checkin it out. thanks for the help. ill let you know whether this worked or not. if not ill prolly just assume the solenoid is goin bad and pick one up from the salvage yard.