badboyr66

I searched and did not find out for sure. I have a modded DX harness is my 9 rex now. The car is missing so I ordered a SI harness from a 90 rex. Will it work in conjunction with the DX stuff in there now? After talking with the previous owner it seems this problem with it missin seems to be in time when the emotor swap was done





As you can see, I have alot tof work ahead of me. As far as the stuttering problem, it is only a part throttle. At WOT... it apears to be gone. He says alot of things have been replaced, ecu, dizzy, wires, plugs ect. My freind wonders if maybe he screwed up the firing order of the injectors... thus part of the reason for the harness. Wires are really all over. Another thing to point out is thata he said he only has one o2 sensor hooked up but cmails he has a chip to suppport this. Another thing to point out is thata I noticed my temp gauge is not working. I am not sure if it is cause the gauge swap, or if it is the sender. I am kinda at a loss and to be honest this is the reason he sold me the car. He was fed up. He is kinda a hillbilly not super mechanicaly knowledgable. Butt again, all these problems seem to have happened when he altered the harness to get rid of the dual point setup

2point2

You cannot simply plug in an Si harness into a DX chassis. If it were that easy the DX to Si conversion instructions would never exist.

You should have ordered another DX harness and re-did the conversion properly.

as for the guage cluster. I beleive 88<>89 and 90<>91 are interchangeable but dont quote me on that.. I know from experience that the cluster will be completely screwed if you use the wrong year, it wont just be the temp gauge on it's own.

2point2

also, check your vacuum lines.. it's hard to see in the picture but something doesnt look right. you can find a vacuum diagram if you search.

zccr-xsi

your right.looks like the one going from t/b is going to canister not the map sensor?