Hatch Man(GsR)

I just put a d16z6 in my 89 hatch, and it has been nothing short of an ordeal so far. I got most of the bugs out already, but I am throwing a code 9, and also when I floor it, the car will go for about 3 seconds, and then bog down so much the car slows down and if I keep the pedal to the floor it will eventually shut off...

The code 9 is confusing because I have a brand new dizzy, and I am sure my wiring is right. Dont think its my ecu because I took it off my old car and it ran fine with it. I am not as worried about this because it only affects the idol from what I have read about it. But the other problem sucks.

The symptom is, I can press the gas almost to the floor, but if the pedal touches the floor it has gone too far and will kill the motor if I dont let off. The motor will bog down so heavily the car actually slows down, but if I just let off the gas slightly it will pick up like it should, and it will just not be as fast as if it were wide open. I thought it was a vaccum line, but it appears that everything is working right...

Any ideas??

black6gen

Maybe the fuel presure regulator or the pump.

Fabrik8

What ECU are you using?

Hatch Man(GsR)

right now I am using a p06 because I sold my p28 when I wrecked my old car... The p06 was on my 95 dx before I put the ex swap in it...

The car was running right before I put the d16 in it, I will check the fuel pressure regulator and pump to see if they are still working properly...

Hatch Man(GsR)

It really seems like a vaccum leak somehow, but everything is connected right. I am getting confused by this problem...

I think the code 9 may be caused because I am using electrical tape instead of heat shrink on my c1 and c2 wires. I will put heat shrink on them and see if it makes a difference...

Fabrik8

That sounds like a good start. Your wires are soldered or crimped, right?? Please tell me you didn't twist and tape them..

Hatch Man(GsR)

Nope, all wires are soldered and heat shrinked...
I am going to try a few things tomorrow because I have the day off. Maybe it is not getting a good connection at the clip on the wiring harness, because I know the wires leading to it are perfect...

Hatch Man(GsR)

Still throwing code 9, and still no wide open throttle. Could the throttle problem be caused be the tps?

jlgrtype

when i changed my fuel injectors to biger ones i had the same problem, you might have to lower the presure on your fuel rail or get the computer tuned to your new specs. thats what i had to do because the oxigen sensor kept telling the computer there was something wrong with the fuel.

Hatch Man(GsR)

hmm..

I fixed the wide open throttle problem, it was the tps sensor. But now the car will react like it has a vaccum leak right at 1,500 rpm unless I press the gas a little harder. I think this is caused by the code 9. I can live with it, but I need to fix the problem anyway...