Ok guys so I have a 91 si hatch has a obd o ls motor i'n it right now. I'm turboing it what all do I need to to convert it to obd1 so I can get tuned I have injectors ecu jumper dizzy jumper and dizzy is that it can you guys think of anything else do I need to change throttle body also wat wires off the ecu jumper do I need to run I heard I dnt need to run any of them I'm gonna be runnin a wibeband instead of a o2 plz give me some info

 

Anyone

 

Bump

 

you need an obd1 distributor, obd1 ecu, and an obd0 to obd1 ecu jumper with subharness. don't need to change the throttle body. either run the stock map that uses the vacuum feed or get yourself a gm 3-bar map that will also not be physically bolted to the tb.

you can run a wideband to tune it, but the ecu still needs a regular 4-wire o2 reading. unless you are using standalone engine management like an eManage ultimate or AEM ems then you're going to need it for sure.

 

So wat do I have to do wit the 4 wires for the o2 I'm tuning on chrome can't the tuner jus get rid of the o2 all together I'm not runnin a sideband till after the tune probly

 

the ecu needs a reference to see what's coming out the tailpipe, just run the damn thing lol.

the 4 wires for it will go to the subharness on the ecu jumper. if you get a nice one from rywire for example, the wiring is already pre-attached to the jumper and it has the correct o2 sensor connector on the end of it. just run it into the engine bay and hook it up.

 

Ok ya it's not the rywire one

 

Ok but the wideband has a o2 sensor attached
To it so the o2 plug from ecu won't be connected anyway right