Hey i just put b16 in my crx, vtec isn't working, you can hear it kick it but never fully kicks in it like kicks on for a minute then fades off. all the wires are right, the ecu isn't throwing any codes. any ideas of what it could be.?

 

good question

 

spark plugs could definately cause that.

 

check the vtec solinoid on the back of the valve cover by the intake manfoild, they dont last for ever. if it is rusted or any thing bad like that get a new solinoid. What ecu is it?, where does it redline at?

 

MUGEN CHIP PR3 kicks in at 4.5 red lines at like 9500 or something not sure about red line, and its on a b16 i don't think the solinod is on the back of the valve cover behind the intake manifold.

 

IF its the pr3 ecu. mine just went out. my vtec will engage and disengage when ever it wants after the real engagement point. it took me two days to diag it and it happend to be interally in the ecu. i also heard the pr3 is junk anyways. i hope that helps a little bit.

 

dood maybe acura forgot to put the vtecness in the motor? if so that sucks man, i feel your pain cause my motor right now doesnt have a vtec either.

i hate to say it but if your b16 doesnt have vtec then yo azz got robbed......

what did the five fingers say to your b16a's vtec???

SLAP!!!!!!!!!!!!!!!

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by iwannabeanairborneranger &raquo;</TD></TR><TR><TD CLASS="quote">dood maybe acura forgot to put the vtecness in the motor? if so that sucks man, i feel your pain cause my motor right now doesnt have a vtec either.

i hate to say it but if your b16 doesnt have vtec then yo azz got robbed......

what did the five fingers say to your b16a's vtec???

SLAP!!!!!!!!!!!!!!! </TD></TR></TABLE>

Ban!!

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by chadmasterc &raquo;</TD></TR><TR><TD CLASS="quote">

Ban!! </TD></TR></TABLE>

Shut the **** up, that guy is hilarious, besides its a website what good does banning do, he'll be back 5 min. later with a new name........DUH!

 

sounds stupid but right after i did my b16 swap into my crx..my vtec wasnt working either because i had taken my thermostat out because the car kept overheating so then the car would never get hot and vtec would never kick in....now i put a new thermostat in..no overheating..and my vtec works fine.....is the car having any problems temp wise?

 

and to the guy posting, do you have an oil pressure guage it sounds like your oil pressure is not staying constant......or maybe your expecting more out of your 1.6.

 

no i don't have a oil pressure gage, and the ecu is throwing the code theromastate code cause i put the theromastate housing outlet that don't have that senser on it. should i of put the one with the senser? And no it ain't running hot cause i rigged the fan with a switch.

 

ya the switch doesnt mean anything though because mine was hookedup to run constant and it was still overheating while the old thermostat was in..put the other one back in with the sensor....and see how it turns out....all i know is with out the thermostat in at all my car would never get up to the proper temperature and vtec would never kick in....after replacing it with a brand new one from honda...vtec kicked in the second it was put in and went up to the normal temp...

 

does anyone know if the tps has anything to do with vtec working?

 

i think u sould just change the vtec wire's...the same thing happen to my friend's..u just have to put good wires..

 

ok, now i know that this may sound stupid...BUT i have encountered this problem before.
If the b16 is installed into crx HF AND JDM ecu is used then you MAY have this problem.
if the car starts fine, idles fine with no code but as soon as you back out of the driveway the code 6 sets then maybe i can help you.
disconnect the reverse light switch on the transmission.
yes i am serious. the original HF ecu used had an input from the reverse switch and if a JDM ecu is used then this input somehow confuses it. i hace seen this at least twice but may not be the problem you have.

 

lets say your tps sensor wasnt adjusted properly,would that couse the vtec not to work?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by bardo &raquo;</TD></TR><TR><TD CLASS="quote">sounds stupid but right after i did my b16 swap into my crx..my vtec wasnt working either because i had taken my thermostat out because the car kept overheating so then the car would never get hot and vtec would never kick in....now i put a new thermostat in..no overheating..and my vtec works fine.....is the car having any problems temp wise?</TD></TR></TABLE>

I just had this problem, my motor had a mystery thermostat in it. Ran soo cool that it never warmed up. So after messing around with it forever i finally deceided to try changing thermostats and that fixed the problem. Also my Thermo switch isnt plugged in either and i have vtec. So i dont think that would be it.

 

The computer activates vtec by looking at your ect(that is what measures coolant temp for your engine, as far as closed/open loop goes)

The thermo switch is merely for the cooling fan.

If your ect sensor isnt sending the right voltage to your computer it wont know what to do, and vtec will be the last thing it tries to engage. your car wont even go into closed loop which while in open loop you really wont feel or hear vtec.

 

ect?could you tell me what that is?

 

Im not sure since you had to be a little bitch in the other thread about the lighter pulleys......

anyways the ECT= Engine Coolant Tempature.......every single car has one, on our engines its mounted on the passenger side of the head(if your looking at the engine look right next to the distributor underneath the cams/close to where the block meets the head)

It should be a green plug but you never know I dont keep track of all these engines ect sensors I just know from past experience what color mine was and others have been.

The ECT is a variable resister. It basically senses coolant temp and sends a voltage then(since the computer doesnt understand temp. but rather numbers=voltage)

When your car gets to operating temp. and the coolant starts to get really hot in the block almost to the point of boiling the computer will see how warm the engine is and regulate open/closed loop(there are a few more things that regulate this but this is a big one)......

Your thermo stat opens mechanically once the temp/pressure hitting it reaches a certain temp. it opens, and coolant flows. coolant flows and decreases in temp. as the ECT sees voltage goes down in the sensor and resistance increases.....Your engine can use this sensor to know whether or not to add or decrease fuel.(this is more common on new cars and most obd2 setups)

Our cars are not very advanced, there are only a few key sensors that help regulate teh computer and keep the engine from starving of fuel, and thats about it.

 

Quote, originally posted by iwannabeanairborneranger ยป
dood maybe acura forgot to put the vtecness in the motor? if so that sucks man, i feel your pain cause my motor right now doesnt have a vtec either.
i hate to say it but if your b16 doesnt have vtec then yo azz got robbed......

what did the five fingers say to your b16a's vtec???

SLAP!!!!!!!!!!!!!!!
-----------------------------------------------------------------------------------------------

<U></U> THIS GUY IS A IDIOT
First off, acura did not produce a car that came with a B16, honda built the motors not acura. Second, when you build a motor it does not automatically have vtec in it, its programed in it through the computer and the solinoid. I know you are a new member here on H-T but when i was new here i was not that dumb. Ethier this guy likes to get flamed for his responses or he just likes to make himself look stupid. I usually don't ream people out on here but ever since this guy started posting it gets on my damn nerves looking at his dumb useless posts.


Modified by ZCed89hatch at 7:15 PM 4/3/2004

 

thanks for the info dood,does that sensor affect vtec? and on the pulley subject i have used light pulleys on all my cars and as long as they are balanced you will be ok(unless you got a model of car that uses a speacial balancer)

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by ZCed89hatch &raquo;</TD></TR><TR><TD CLASS="quote">Quote, originally posted by iwannabeanairborneranger ยป
dood maybe acura forgot to put the vtecness in the motor? if so that sucks man, i feel your pain cause my motor right now doesnt have a vtec either.
i hate to say it but if your b16 doesnt have vtec then yo azz got robbed......

what did the five fingers say to your b16a's vtec???

SLAP!!!!!!!!!!!!!!!
-----------------------------------------------------------------------------------------------

<U></U> THIS GUY IS A IDIOT
First off, acura did not produce a car that came with a B16, honda built the motors not acura. Second, when you build a motor it does not automatically have vtec in it, its programed in it through the computer and the solinoid. I know you are a new member here on H-T but when i was new here i was not that dumb. Ethier this guy likes to get flamed for his responses or he just likes to make himself look stupid. I usually don't ream people out on here but ever since this guy started posting it gets on my damn nerves looking at his dumb useless posts.


Modified by ZCed89hatch at 7:15 PM 4/3/2004</TD></TR></TABLE>

Your a day late and a dollar short pal.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Kasper-EF8 &raquo;</TD></TR><TR><TD CLASS="quote">
It should be a green plug but you never know I dont keep track of all these engines ect sensors I just know from past experience what color mine was and others have been.</TD></TR></TABLE>

On the B16 it's not the green plug... I thought it was for the past year and couldn't figure out why I was getting a code 6 (ECT sensor). Turns out the green plug is for the VTEC oil pressure switch, and the black (or white) plug is for the ECT sensor. They're the exact same shape and size, and I'd had them reversed

And yes, that sensor affects VTEC. The ECU will never know that the engine is warm enough, you won't have VTEC, fuel cut-off will be aroud 7000rpm, and it'll make starting hard when the engine is cold.