vtec not engaging

alright ive had the swap done for a while, just got the timing fixed and a new bearing in the passenger side. had the shop check to make sure the solenoid worked and they said it did it just wasnt getting power. my redline is kickin me at like 6.5-7k and i kno i should be around 8k before i get kicked. i bought an ecu jumper with vtec harness from rywire and im not gettin any ecu codes so im thinkin it could be the ecu i bought from them. its a chipped p06 that they said should work and i checked the wires and theyre all connected. anyone else have any problems like this and is there any other things i should troubleshoot.

Check to make sure there is continuity between the wire running to the solonoid, and the ECU pinout. Also, there are other things that can affect vtec from engaging. Have you checked those as well?

yeah my oil pressure is fine but what else could it be? i need to get a multimeter so i can check the wire but im pretty sure they said that it wasnt getting power from the wire. maybe the pin is just in the wrong spot or somethin ill look later today..gotta find the pinout i kno i have it somewhere on my computer

Any issues with the temp gauge?

nope my temps been fine and the engines been strong

That Ecu sounds like a variable I would check out, but you say it running great..Id be suspect, just because someone "said" it would work, also check the wire, you could have checked the solenoid by simply putting 12v to it, itll click. But things that control vtec are temp, speed (your speedo works right?) oil pressure, ecu codes, and of course rpm. And hell, have you looked at the ecu? Ive seen the CEL bulb burn out and never knew it..

could be a o2 sensor. that's what happened to mine. and a loss of pressure, ya know (head gasket, piston rings).
frodo could be right too. i've seen that's on some hatches before.

my temp is fine..right at the quarter of the gauge as usual. oil pressure should be fine. speedo and rpm gauge both work fine. i kno im not throwin any codes cuz i have it wired to my check engine light so i can tell when im driving if anythings wrong. i bought the ecu jumper, vtec harness, and ecu from rywire so idk whats up with it.

hondacivic if it was the o2 sensor it would tell me on the ecu right? i havent gotten any flashes since i put the motor in so im thinkin this ecu just doesnt have vtec. im gonna go to the acura dealer here in a day or so with my buddy to pick up his prelude and ill see if theyll take a quick peek for me.

The O2 sensor reading has zero effect on the vtec parameters.

It sure as hell does, if it throws a CEL then it wont engage. however, if the o2 does not, then no, doesnt affect it at all.

but im not throwin any cel's

Just my .02 but you say the engine runs strong and everything seems right... no codes, temp is good, wires look right... But you say you're redlining at 6.5-7k rpms right? Maybe your tach is lazy... it's been known to happen. If you're running OBD1 try a known good p28 ECU. If you go to the dealership they're going to rape you just to scan the ECU.

nah they wont my buddy gets his type r and his prelude serviced there and a guy who works there used to go to hs with us. he spends way too much money in there, the prelude is gettin a new synchro and they estimated 1800 to put it in!!! i told him to do it himself cuz he could get an engine swapped for that price but lucky for him hes pretty much rich after an accident settlement and hes always had them service his cars.

could i try his type r ecu in my car its from a 2000? its probly a different obd..maybe ill go down to the shop near me and see if i could borrow their ecu from their b16 crx for a few to test it.

Nah that ECU he has is OBD-2.

could i try his type r ecu in my car its from a 2000? its probly a different obd..maybe ill go down to the shop near me and see if i could borrow their ecu from their b16 crx for a few to test it.

borrowing somebody's ecu is the easiest way to tell if the ecu you have is garbage...the less easy way is to bust out a meter and start testing wires.


Nah that ECU he has is OBD-2.

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