T-Charged-Civic

Hello, My name is Avi and I've recently made a swap of k20 engine into a 1994 civic hatch, used the mounts kit of hasport, and hybrid racing axles+wiring harness, all rest are custom made.
now engine is running, and car is driving, everything's working smooth, only problem we got is that vtec ain't working, if we run a direct wire we can run it manually, but it ain't working automatically when it should, if anyone can help, it would be great, thanks a lot, Avi.

JDMotive

What ecu are you running,and is there any check engine lights are ecu trouble codes?

T-Charged-Civic

I'm running an OEM ECU, and no lights no nothing....

0hybrid racing

Did you get the speedsensor to work properlly. I remember talking to a customer who had a problem with the VTEC not working and it was related to the speedsensor.

Nikos

The ECU might not be reading the engine temp. What are you using for temp sensor?

T-Charged-Civic

this is wierd, the temp sensor ain't working !!

fabworxs

which temp sensor?

Nikos

lol, yeah man.. If ecu doesn;t read temp from engine.. to protect the engine it doesn't let it rev past 5500 and get in vtec.

I have had at least 3-4 people have the same issue. You need to use a bseries temp sensor with a reducer. Also check the wiring....

Since you are using the hybrid harness, the c302 plug, pin 10 is for that reason... COOLANT TEMP SENDING UNIT

Make sure you are counting right on the plug....

It should look like this...

Rusty Shackleferd

That's weird because i did a k20 swap for a friend and we haven't wired up the temp sensor yet. We took it out to test it and the vtec worked fine. We are using a stock prc ecu.

Nikos

What car? Did you use the hasport harness?

0hybrid racing

The temp sensors for the gauge cluster is different than the temp sensor that the ecu sees.

If you did not hook up the sending unit for the EG dash your vtec will still engage.

Rusty Shackleferd

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Nikos &raquo;</TD></TR><TR><TD CLASS="quote">What car? Did you use the hasport harness?</TD></TR></TABLE>

eg, no hybrid racing.


Modified by Rusty Shackleferd at 9:23 AM 3/31/2005

T-Charged-Civic

so my problem is probably different, maybe somewhere between the c302 plug and the engine's temp sensor there's a problem....

Nikos

Are you using a reducer? What kind of sensor are you using?

T-Charged-Civic

yes, there is a check engine light always working, what do you think ?

T-Charged-Civic

I'm using the 2004 civic type r original temp sensor, have'nt replaced it, and I ain't using a reducer, what's that ?

u_tal

Reducer????

Nikos

You cannot use the K series temp sensor... You have to use B series sensor.... The reducer is what is going to make it fit.

T-Charged-Civic

ia that what causing the:
1. temp gauge to be not reasonable.
2. vtec aint working.
3. check engine light.
?

Nikos

Probably...

Do you have K pro? What ecu are you running?

Nikos

I have to go now..

If you find a bseries sensor you can still fit it without a reducer if you cannot find one...

Take the bseries sensor and break all the plastic off
then drill and tap the brass and install the sensor
the sensor is like solid brass


All that is happening is
drilling a hole which removes the factory little wire sensor in the brass then you tap it and screw in the b series sensor

Nikos

here;s how it will look

SupaFly

he means break plastic off of K Series sensor and drill a hole all the way through and tap the hole for the b series sensor to get screwed into it.

Nikos

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by SupaFly &raquo;</TD></TR><TR><TD CLASS="quote">he means break plastic off of K Series sensor and drill a hole all the way through and tap the hole for the b series sensor to get screwed into it.</TD></TR></TABLE>

yes that, thanks Richard, don;t forget to show up saturday night with $50,000.00 I am racing you with my YUGO

T-Charged-Civic

Nikos:
Thanks a lot.
and I'm running a stock ECU.