ZeroConsequence

Hello,

I’ve been having this problem for some time now. No CEL

At low RPMs, car tends to bog/hesitation/die. When I release and apply gas, and or floor board, the symptoms tend to go away for a little and then return. When I get up to speed, it tends to go away and remains fine until low RPMs.

2000 Honda Civic DX
D16Y8 (Swap)
P28 ECU w/ Jumper

Things I have changed since problem.
Fuel Pump (AEM, Forgot the LPH)
Fuel Filter
Main Relay
TPS
MAP
Distributor
Spark Plugs & Wires
IACV

amerc

Do you have intermittent starting issues ? If so it could be your ignitor inside the Distributor.

ZeroConsequence

No starting issues. I advance and retarded dizzy to see any changes, but none.

Alicali

I had the same issue when my y7 blew I swapped in another y7 just to find out there's such thing as obd2a and odb2b I had zero low end power and tried a lot of things and didn't work , maybe your swap came from a different obd2??

ZeroConsequence

The Y8 is from a 97 EX obd1.

My Honda is a obd2b harness w/jumper obd2b to obd1 p28.

The p28 came from a delso but unsure of the year.

Alicali

how's your idle? Maybe your iac got screwd with and needs adjusting.

ZeroConsequence

It idles fine around 600 rpm, but motor does have a seizure like moment. When that happens, that's when the car does it bogging/hesitation/dies.

I adjusted the screw to stock; correct me if I'm wrong but I believe 2 1/2 turns.

And forgot to mentioned that in new parts. New Idle Air Control Valve

ZeroConsequence

Is it possible for you fuel pump to draw to much power?

if so what is a solution to fix this problem?
Put a thicker gauge for ground?