i am having a few small problems with my LS swapped rex
i am getting code 1,9,12,and 43
the idle is very high 2500rpm (was 3k but i idled it down all the way) i just swapped the thottle body and but on a different tps dont know if you have to adjust never messed with them the old one made it bog real badand stalled occasionally after the clutch was pressed in (could keep it running if you gave it gas)

any help would be great thanks

 

check what those codes mean. i could tell you but i think searching would help. fix check engine lights. and see if it still has problems.

 

1 o2 sensor
9 cylinder sensor
12 exhaust gas recirculation lift valve
43 Fuel supply system

also im running this on an obd0 PR4 ecu

 

ok is your o2 sensor hooked up? it should be a 1 wire o2 sensor, and as for cylinder sensor is your crx a dx or si? did you do dpfi to mpfi conversion? if you did, then check your connections or wiring, you probably wired wrong, and for fuel supply, make sure your fuel pressure regulator is good by checking fuel pressure, make sure the vacuum hose from regulator is hooked up to manifold, cuz when mine wasnt on my ls in my ef, it gave me that code. and code 12 is for A/T tranny only, so that means you have an auto pr4. not sure if that will work or not do some research on that or somebody help me out with that one

 

my crx is a HF

the car was like this when i got it i just found a bunch of **** wiring under the dash tho dunno what they did to it probably more bootleg wiring (the car is mostly wiring issues now)

may pull my harness from my 89 si and see what i can make of this

fuel pressure shouldnt be an issue as i have a walbro 255

 

the dizzy was set all the way forward it runs worse than before and the throttle response is much worse help

 

i have no o2 sensor...

 

Maybe you should install it???

 

i dont have an o2 bung nor can i find the wire for it

 

What exhaust manifold are you using? All oem manifolds have the bung for an O2 sensor.

 

don't quote me on this but doesn't it need an 02 sensor in place to run properly?

 

it has some bootleg ebay header i think no bung on it

and looks like more wiring hell under the dash

 

ok now 9 and 43 are back i mess with the dizzy it dosent bog as bad but surges when i set it close the middle it bogs real bad barely even inches foward for a couple of seconds nut dosent surge much if at all is my dizzy at fault here or what?