boggin out b16

can anyone tell me what would or could cause my 90 civic b16 to loose complete power when i leave from a stop, also when i open it up it also boggs out, and looses power. i dont have either o2 hooked up right now, could that be the problem?

ya - that could do it - also, did you swap the wires on the throttle position sensor on the throttle body. If you didn't, that and the missing o2 sensors could cause that problem. When your ecu realizes that your o2 sensor isn't working, it goes to a "default" fuel map and kinda guestimates how much fuel to put in depending on throttle position sensor. Now, if you didn't swap the wires, your TPS is telling the computer that you are at full throttle, so the ecu is just dumping fuel into your engine and your barely getting any air cause you aren't on the throttle much and your butterfly valve isn't open very much. I believe would cause your engine to bog down.

Yea well i had the same problem, so this is what i did in the mean time, i ran both o2 wires into the one, so that it recognizes an o2 sensor on both ends, works fine and if it ever startes to act up i just switch it over to the other, this is strictly temporary tho until iget around to obd1 which should be soon...i dont know if that makes sense or not haha

ok, as for the tps sensor, my civic was a dx but i put in the si wiring harness in it. i just used that sensor and the wires, is there anything else that i missed when doing that

oh ya could my distributor maybe be f##ked to. cause i remember when i had my original motor in it my dist. was messed and the car was kinda doin the same thing just a bit worse

How high can you rev it?? Will it rev over 3k? If not it could be your distributor, but if it does rev over 3k, it's probably a air/fuel mixture problem or something like that. And how did you do the si wiring harness, did you swap the whole engine and interior harness, or just the engine one?

it only really boggs out when i leave from a stop or when i drive to slow in to high of a gear. when the car is driving at a nornal rate i can rev it as high as i want, but today i noticed that the problem is getting worse. as for the si wiring, i changed everything.

try checking the timing i had a similar problem, it revd fine and sounded good till i took off then it bogged like a mad crackwhore. i checked everything including the dizzy. it turned out to be the timing on the camshaft sprockets and on the crank sprocket behind the crank pully. i was off by a couple of teeth.

it boggs out every time your in low rpms or from a stop? ^^ if so then :iagree:

ya ok i can see that being a problem, although the car was running perfectly fine for like two months before this happened