would it work if i just bring the intake manifold to a machine shop and get a couple holes cut to put a map sensor on it ?

 

Yeah if you're going to run it off of the 1.6l ECU you'll need to convert it to MAP.

 

what do i do about o2 sensors ? i have headers and no cat, so only one 02 bung (next to flexpipe). do i put primary in there or secondary ? what can i do to not have a cel ?

 

You'll either need another O2 bung, or you'll need to find an O2 simulator that'll work. If you add another bung, add it as far forward as you can, close to where the header's primaries come together. If the current O2 sensor is already right there install the new bung a foot or so downstream. You can drill out a spark plug non-fouler to a half inch and space the downstream O2 sensor enough out of the exhaust flow to imitate the readings it would get with a cat.

 

thanks, but im not sure where you mean for the primary, can i just place it on one of the tubes right near the top, or does it need to be where they all meet up

 

It is possible to put it on a single tube (the single tubes are primaries) but it's far superior to get the O2 readings from after the primaries come together.

 

is it ok if they would be only about 1foot, 1.5 foot away from eatch other ?

 

Yeah. It won't matter much.

 

wow, i am in this situation too. i have an aus spec LC (1.5 dohc, exactly the same as 1.6 dohc except for the bore) and a 2.0 CVVT beta from an 04 elantra. i'm looking at doing a full computer/harness swap, alot of the sensors look too different on the two engines.

 

yea a full harness swap would be ALOT of work from the information i could find, but it would prob get the car running pretty darn good. I was thinkin running the 1.6L ecu and then adding a Greddy Vmanage to tune the ecu and control CVVT.