existanzcivicb20

I just swapped a engine from an 1995 Integra into a 1997 Civic. the car idles great and runs great when cold. But when engine reaches optimum temperature the engine starts bogging out under rapid acceleration but if you accelerate slowly it will accelerate fine. i have done a few hours of research and i am still at a loss...

i have a new distributor on the way ( Im thinking this is the most probable cause ) but also im not too sure how much different is a OBD1 TPS from a OBD2 TPS if any difference.

the engine was running perfectly in the integra, the only things i swapped was the alternator and the distributor.

what would you check next?

JoeBlue

It's bogging as in too much fuel or it's just getting really crackly sounding and not pull anymore?

existanzcivicb20

well even in neutral as soon as you floor it the RPMs drop to like 300 and the car almost dies and then the RPMs start to increase slowly and crackly.

existanzcivicb20

bump

existanzcivicb20

its almost as if it is getting too much fuel any way to test for this?

JoeBlue

When is the last time you changed the fuel filter? Have you started testing the injectors and gone from there?

existanzcivicb20

Fuel filter is new and 3 injectors tested at 11.2 ohms and the forth one at 1.1ohms so I swapped out the one that tested low

JoeBlue

Did that solved the issue?

existanzcivicb20

Not sure we had a snow storm last night I will take it out for a drive today

existanzcivicb20

Nope didn't fix my problem

But I did take it to autozone to get the codes read and nothing special came up

I got code for both O2 sensores heater unit malfunction but I'm pretty sure this wouldn't cause this issue

JoeBlue

Hold old is your cat?

existanzcivicb20

No cat I just have a straight pipe

F22Master

What ECU are you using? The stock civic one?

existanzcivicb20

No i am using a OBD2 LS ECU

existanzcivicb20

I just got a brand new distributor with cap and rotor new plugs and the problem continues with no change at all

existanzcivicb20

I will post a video on Youtube and post the link on here

existanzcivicb20

https://www.youtube.com/watch?v=52ZP...ature=youtu.be

_MMR_

A buddy of mine had a similar problem and it was because his throttle body wasn't opening up enough, try taking off ur intake hose and manually open the throttle body (while the cars on) by pushing that piece that the wires attached to and look to c if its opening and how the engine reacts

existanzcivicb20

The engine acts the same way if I do it by hand

existanzcivicb20

Ok so I replaced my fuel filter again and it seems that the bogging got worse... Any Ideas?

existanzcivicb20

now I changed my fuel pump to a stock fuel pump and no change i did notice that i am getting a code P0112. but i dont know what readings are suppose to be coming to the clip ( voltage and resistance ) can someone help me out?

jezzy

did you try swapping out your fpr?

existanzcivicb20

FPR? fuel pressure regulator? if so yes twice

existanzcivicb20

Bump

existanzcivicb20

I also tried changing the Walbro fuel pump back to a stock fuel pump and still After the car is warm it still bogs down for a split second as i hit the accelerator and if the engine is turned off its hard to start back up unless I have the engine at WOT (wide open throttle). its like it floods its self when i turn it off.