DOHCarp

Alright I just finished a swap( 92 hatch cx with a b16a2 ) The problem is I am not hitting vtec.

I am useing a cx harness with a the vtec selonoid wired directly to the ECU. The only CEL I am getting is from the speed sensor and the O2....could either of these cause it to not craoss over to vtec. also I tried a stock p28 ecu and a chiped p28 with skunk 2 programming. any ideas guys...anything else I can check and double check. thanx.


[Modified by DOHCarp, 7:10 PM 3/19/2003]

delacampos

did you run the vtec pressure sensor wire? did you ground the pressure sensor?

DOHCarp

yup I ran a total of three wires.

1. Ground
2. vtec pressure sensor
3. vtec selonoid

am I missing anyhting?

delacampos

thats correct. what are the exact code #'s you are getting? 41 and ???

Trey

Vtec won't work without the speed sensor connected. Get the code 17 cleared and the Vtec will work.

2trix

does your tach work!? do you have one? alot of times vtech will not be activated due to the ecu not knowing where your at on rpms...ecus are weird like that...have you tried to hook up your vss?

Trey

HUH??

The ecu always knows what RPM the motor is at. The guage isn't necessary. Ever heard of swapping a B swap in a car with no tach? The Vtec still works.......

Vtec looks at these variables:

Speed
Engine temp
Oil pressure

DOHCarp

thanks Trey...I'll give it a try as soon as I get home.

Kamin

you have absolutley no idea what your talking about do you?


heres my vtec troubleshoot
https://honda-tech.com/zerothread?id=164863
good luck


[Modified by Kamin, 1:44 PM 3/19/2003]

2trix

sorry guys!? what was i thinking....

DOHCarp

Well the new speed sensor fixxed it...thanks again Trey!!!

DevinW

Hope my engine troubles get fixed that easily..hehe

Trey

No problem dood. Have fun and drive safe!