Vtec kick back after intake instal? [Archive]

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s2kjn

09-10-2011, 09:11 PM

So I just finished installing my PWD JDM intake, and after all the hard work, I quadriple checked all connections as a lot of relocating lines including the valve sensor and solenoid and vtec solonoid was required. I then reset the ECU as I normally do after changing performance parts.

Then I went for a drive, once 3 bars on the temp gague showed up, I decided to got attempt to go to our favorite 9k range. As the revs climbed up, everything was as expected with more umph until I got to between 6-7k, I got the same feeling as though u would try to hit vtec when the engine is still cold. I tried again, and the same thing happened. Has anyone gOt a clue as to why this could be?

dlai5552

09-10-2011, 09:58 PM

Just coz your water temp is at 3 bars, doesn't mean that you're car is warmed up straight away and enough to activate vtec yet. Did you try a little later after maybe 10-15 mins of driving around or so.
Also, vtec only activated at a certain amount of throttle (someone once said 70% from memory, I think a bit less, but you get the point).
Now go try again :)

VeYzZii

09-10-2011, 10:25 PM

So did VTEC kick in.. Or it didnt kick in..?? Basically was there a sound difference?
What dlai is saying can be true IF vtec didnt engage, if the engine is to cold blah blah, it would just feel plain, no kick, no sound difference. I dont think temperature is the problem.

lzybum

09-10-2011, 10:52 PM

op did u have like an injen/aem cai before this?

s2kjn

10-10-2011, 07:37 AM

Yeah I let the car run for about 10 mins before. I tried again this morning, after driving for 20 mins granny shifting, I put the pedal down. It actually cuts exatly on 7k and as soon as that happens, I sensibly release the accelerator. I checked all lines and everything that was needed to be relocated again, and still couldn't find any loose hoses clamps or empty connections. I did also do a valve adjustment before I put in the intake, but before I insatlled it, I drove up to the shops, and was running fine.

@ LZYBUM, It was the stock airobox that I removed.

s2kjn

10-10-2011, 11:53 AM

Ok, so I also tried revving in neutral, and still does not want to go past the 7k mark exactly.

s2kjn

10-10-2011, 12:43 PM

Im wondering if a MAP what will do the trick...any suggestions?

s2kjn

10-10-2011, 05:40 PM

Well gave that a shot and re deserted the ECU. Problem still there....

MRJDM

10-10-2011, 09:39 PM

Do u have enough oil in ur car?

s2kjn

10-10-2011, 10:09 PM

Yep oil level is fine. Didn't know that oil levels could cause this kinda problem.

dlai5552

10-10-2011, 11:21 PM

Oil level definitely affects vtec because it all depends on oil pressure (as well as engine temp, speed and throttle position).
:)

VeYzZii

10-10-2011, 11:39 PM

So its like a false redline.. Any engine lights? Sounds like a vtec solenoid problem but i dont understand why it would happen after installing an intake. Why dont you reset the ECU and try again.

dlai5552

10-10-2011, 11:58 PM

Why dont you reset the ECU and try again.
I think he mentioned that he did in the first post :D

VeYzZii

11-10-2011, 12:42 AM

I think he mentioned that he did in the first post :D

'I then reset the ECU as I normally do after changing performance parts.'
Reset after the error occurs.. ;)

s2kjn

11-10-2011, 07:57 AM

So its like a false redline.. Any engine lights? Sounds like a vtec solenoid problem but i dont understand why it would happen after installing an intake. Why dont you reset the ECU and try again.

No engine lights at all. And after I did the map whack, I reset the ECU again, still the same occurence. I dont understand either. If you have a look on page 5 of this attachment, you can see at point 7, this is the only thing I did to the vtec sensor. I didnt unplug it at all, just moved its bolted location from one hole to another. It doesnt mke any sense to me how everything else, which involves only the air pump and air valve hose replacement/relocations and one radiator hose can effect the engine in such a way.

s2kjn

11-10-2011, 07:58 AM

http://passwordjdm.com/Install_Notes/S2000_Dry_Carbon_RAM_Air_Induction_Kit_00_05.pdf

s2kjn

11-10-2011, 08:00 AM

'I then reset the ECU as I normally do after changing performance parts.'
Reset after the error occurs.. ;)

Huh? I don't get what u mean. I didnt even move the car an inch until i found out what the problem is

garett

11-10-2011, 11:43 AM

try installing your OEM intake and see what happens

VeYzZii

11-10-2011, 12:23 PM

No clue dude. Sounds very weird. Try what Garrett said, best bet.

s2kjn

11-10-2011, 01:32 PM

Is on my next thing to do, but Feck such a PITA!

dc2r-0636

11-10-2011, 03:15 PM

how olds your oil? evn tho its full it prbz fukd and it not got enough oil pressure for vtec to engage.

or you may need a new vtec solenoid gasket
http://www.vlatstore.com/NEW%20SITE/OEM%20HONDA/29.jpg

MRJDM

11-10-2011, 05:20 PM

s2kjn

11-10-2011, 06:07 PM

-1. Problem fixed. Last night i removed the vtec sensor blew into it, plugged it back in and presto! 9k all the way.
Feels spectacular, the way vtec should feel. Thanks for all the suggestions and help to everyone!

ALPS

11-10-2011, 06:56 PM

s2kjn

11-10-2011, 09:19 PM

Sounds amazing, revs up much quicker, and I can't explain how amazing vtec feels!

ALPS

12-10-2011, 07:19 AM

Sounds amazing, revs up much quicker, and I can't explain how amazing vtec feels!

maadd!! if you dont mind me asking. where did you get the intake from? and how much

mocchi

12-10-2011, 07:27 AM

Last night i removed the vtec sensor blew into it. what does that mean?

s2kjn

12-10-2011, 07:56 AM

maadd!! if you dont mind me asking. where did you get the intake from? and how much

Not at all. I got it from PWD JDM directly from the US on s2ki. Best intake u can get in regards to reaping power, not for ease of installation or having space. Mind u, I have my whole exhaust system modified too so it makes it that much more rev happy. (J's header, Berks HFC & Greddy TiC dual)

s2kjn

12-10-2011, 07:57 AM

Last night i removed the vtec sensor blew into it. what does that mean?

I dont think I can elaborate on this any further. I literally removed the sensor from its plug, blew into it and the connection, plugged it back in, and bobs ur uncle.

mocchi

12-10-2011, 08:15 AM

LOLLL. didnt think you literally blew air to it. happy days mate.

ALPS

12-10-2011, 09:13 AM

I dont think I can elaborate on this any further. I literally removed the sensor from its plug, blew into it and the connection, plugged it back in, and bobs ur uncle.

nahh not air. blew something else into it ;)