Ok i am well into my h22 into a 94 civic swap. Just have a question i hope someone can clear up. I have been reading the main h22 swap thread and im just a little puzzled. I used this chart ( http://www.ff-squad.com/technet/wiring.obd1.htm ) to find out what the pinouts are actually for. Here is the EGR wiring info i am also using.
EGR lift valve solenoid
(The connector colors, From left to right) BLK/YEL and RED

Sensor Voltage - BLK/YEL - goes to A25
ECU trigger - RED - goes to A11.

EGR Lift Sensor (the actual EGR on the intake manifold)
(The connector colors, From left to right) WHT/BLK, GRN/WHT, and RED/WHT

ECU trigger - WHT/BLK - goes to D12
Sensor ground - GRN/WHT - goes to D22
Sensor voltage - RED/WHT - goes to D19 or D20

Solenoid Sensor Voltage goes to A25 but A25 already has a Yellow with Black striped wire there. The pinout chart says A25 is a power source so i think i am good. Do i just splice into that wire? or Remove that wire and repin it directly from the Solenoid
Ecu Trigger to A11 is clear and good to go with an empty slot.
Lift sensor ECU trigger to D12 is also good to go with an empty slot.
The Sensor Ground goes to D22. A Green wire with a white stripe already exist. Chart says D22 is a sensor ground. Suppose to be for EGR or used for something else? Splice into it? or remove it and repin?
Sensor Voltage is suppose to go to either D19 or D20. Both slots already have a wire. The chart says D19 is Sensor Voltage for MAP and D20 is Sensor Voltage for TPS. what do i do here?

I hope this was not confusing. I also hope someone who has wired EGR or someone who knows what is to be done can help me out here. Thanks to anyone who can provide something

 

well with my h2b swap i never wired up the egr. i just got a chipped p28 map to an h22 with the erg removed. runs perfect.

 

yea i know a chipped p28 will work. i just thought to save money i would try to wire my egr into the p13 instead of buying a chipped p28. im also doing an h2b swap and im really excited to get her running. how is your car running? any ideas on the wiring issues?

 

When i try to wire the EGR, I see that wires already exist in the A25, D22, and D19/20 spots. Solenoid sensor voltage, lift sensor ground, and lift sensor voltage go to these spots respectively. What do I do about the pins that already exist in those spots? I feel if i just unplug them I will be unplugging them from something that is needed.

 

Just to clear up to those who remove your EGR. There are no horsepower gains to be made by removing EGR. EGR is only functional during cruise (light load) to reduce cylinder displacement therefore burn less fuel. At heavy load or WOT EGR is not engauged, Same thing with idle, if you manually engauge EGR at idle you will see what I am talking about, the car will start to misfire and eventually shut off.

 

yea i know it is only functional during cruise. i was just trying to get it wired properly to have it work and no CEL. Just when i bring the wires to the ECU, the correct pins are already occupied.

 

What ecu are you running?

 

sorry, my bad p13. Make sure their aren't already wires ran for the egr in your harness. If not verify you are looking at the correct ecu pinout!

 

I pm'd the creator of the h22 swap guide and was told to just splice into the wires. I decided to go with a custom ECU from phearable.net and avoid the whole EGR mess because i dont even have all the components for it.