a friend of mine and myself swapped a B18b1 into a 89 Si hatch.. the wiring harness mounts right up, same as the D16 that was in it.. there was a few extra plugs, that we cant find spots for, but other than that, we tried to start it last night,and we got it to turn over, and sputter a lil bit.. now, it wont even turn over at all.... any suggestions ne one???? help plz

 

What ecu are you using? Are all of the grounds good and secure? Which wiring harness are you using, the B18 or D16 one?

 

we are using the D16 one, b/c he had the same motor, in another Si, that got wrecked... and it worked in the old one,,, the grounds are all OK, and the stock ECU is still in the car

 

i beleive you need a different ecu...pr4 maybe? i'm not sure don't hold that against me but i'm sure you need a different ecu..

 

ya, i was thinkin about takin the ecu out of the old hatch, that got wrecked, cuz the motor ran fine in that car..

 

I'd have to say ECU is your problem. If you are using the same harness as before, then it's not the problem.

 

oo ok, ill have to check that.. thx guys, ne more info???

 

make sure the firing order is correct

 

Are you using an OBD0 distributor or the B18B one? The distributor has to match the ecu for either to work right.

 

we took out the ECU, from the old Si, and put it in the new one, and the distributor is from the B18b1, we had that problem on the old car.. the car wont even turn over, it did once, then every time after that, it wont. the firing order is right, so i think it might be a starter issue. tried switching batteries, to see if one was bad, no help.. tried to turn it over with no compression, still didnt work. tomorrow we are going to try to push start the car, so we can try to zero in on the starter.. hopefully we will have more luck tomorrow. keep the advice comin tho... need all the help we can get...

oo. and for ne one else with this swap... is it just me, or is there no TPS sensor plug on the D16 harness??

 

bump....

 

ok, now it starts, but it wont idle.... itll just start and shut off.. ne suggestions??