i already have a b20vtec swap in my 96 hatch. i was thinking of swaping an LS. will i throw a CEL since my harness is currently set up for vtec? or will it not be a problem since ill be using an obd2 ls ecu? im looking for compatability. i need to take the car to a state ref. so i cannot be throwing codes ect... input from those with experiance plz!

 

just trying to get some closure here

 

you will be fine, just some extra plugs hanging around

 

just need some extra reassurance here...

lets get this straight. im taking out my b20vtec and swapping in a b18a(no vtec). i should not expect any surprises correct? ALSO, i plan on using the b16a throttle body on the b18a manifold, aswell as the alternator from my b20vtec setup. am i still in the green? agin, this is a 98 usdm LS motor.....

 

alternator, your cool as long as its obd-2. and the throttle body is no problem.

 

cool, because im jumping head-first into this thing this weekend....

 

another question:

on the b16 throttle body i plan to use there is a hose running into the intake manifold. i would like to use that on my ls mani except there is no connection where the hose should go.

 

pic? There are a few hoses. you mean the one fron the IACV to the FITV? Or.... ???? need better description

 

i hope you can see from the pics what i am talking about. this hose runs from the throttle body right into the intake manifold next to the last runner

 

THIS IS A BETTER PIC.....

 

that is the fitv(fsat idle thermal valve) just tap it into any coolant line. The back end of it goes to the IACV on the back of the manifold.

 

lets see if i understand this.

the hose running off of my throttle b. is the FITV. this is not a vacuume hose but a coolant hose. since my mani doesnt have an IACV(there is no place to adapt the hose on the manifold) i just tap a coolant line and i will be fine.

 

yes, or you can block it off and run no lines, builds better hp, cooler intake charge, but yopu awill have to warm up your car when its cold or it wont idle. Otherwise run both sides of the fitv into coolant hoses

 

thanks for the replies!