Hi all, I'm new to the honda type engines however i have noticed VTEC doesnt engage at all. just wondering what checks i can do and what sensors notify the ECU to engage VTEC.
I tried searching but couldn't find anything.
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Hi all, I'm new to the honda type engines however i have noticed VTEC doesnt engage at all. just wondering what checks i can do and what sensors notify the ECU to engage VTEC.
I tried searching but couldn't find anything.
Are you sure you have vtec in the first place?
Check oil first off, make sure you have enough
are you sure it isnt engaging? hook up a light to the solenoid and take it for a spin, the D16Y1 is very quiet
Yeah I'm sure it has vtec, I have a cold air intake and I cannot hear it kick in and can't feel it, also doesn't have a change in rpm just seems to rev out like normal.
Could be low on oil, also check your vtec solenoid that it's in ok
Do the test light test to start with, this way you know if your ECU is trying to engage VTS
Do you have a P28 ? is it stock ?
Ensure your engine temperature is at optimal temp,
Ensure your VSS is working.
Ensure your oil level is correct
There is no power at te solenoid, oil level is correct and its stock with stock tune and ecu, pretty sure it's a p28, engine temp is normal when testing and vss seems to be working correctly. The sump isn't dent d or anything stupid like that as I have heard that it can cause an issue. I used to get code 22 and have replaced the vtec oil pressure switch and now no codes.
Solenoid seems to work, it clicks when I add power to it straight from battery
confirm the ECU type.
sounds like the ECU does not want to engage VTS..
when you tested how was your test light wired ?
did you go over 30kph ?
did you apply more that half throttle?
how long had the engine been warm ?
does it have a vtec solenoid pressure switch? If so the switch could be faulty
Solenoid oil pressure switch has been replaced with a new OEM one the other week back. I'll confirm the ECU type tomorrow ECU-MAN
Almost thinking about going to a B16A2 swap but finding it hard to source a complete engine and everything needed to fit into a EH VTI
Confirm the ECU is a P28 and i had the light wired in parallel to the solenoid. When testing i did go over 30km and definitely more than half throttle was applied. i always warm my car up to operating temp before driving it hard and testing.