hey im a new user on here but i have a 95 prelude si that i just put a h23 engine in out of a 93 prelude si aws. the problem im having is its only firing on the first and fourth cylinder and not the second or third. i got new distributor, plug, cap, rotor and wires. i did the compression test they all ranged from 180 to 210. what could be the problem? please any options let me know

 

Did you recheck the wiring order of the spark plugs?

 

yea and then we tried differnt ways. i was told maybe injectors or ecu. but the engine ran like this while it was in a differnt car. just figured it needed a good tune up

 

Definatly an engine problem and not the ecu. Are you getting spark?

 

Are you using the ECU from the new engine? You should be able to ground out each of the spark plugs to verify they are all firing. If they are, injectors seem like the next likely culprit. Trying swapping the injectors around and see what happens.

 

im getting spark on all 4 no problem. the ecu is from the 95 the car i put the engine in. because it was a 5speed and my 93 is auto. we are going to swith out the second ans third tomorrow and prey to god it works.

 

well today i switched injectors and its still doing the sme thing

 

Make sure all your grounds are intact...have you checked the head gasket rings for leaks? Also did you check to see that the spark plugs are gapped correcty?

 

So you swapped the #1 & #4 injectors to the #2 & #3 position, but still no fire on 2/3? Any fuel on those injectors? Sounds like a short with the injector clip or somewhere down the line.

 

im having the same problem too BUT my swap was from a h23 to a F22a. my car is a 92 and the donor was from a 95 i think.

i swapped ecu's from p14 to p12 and no dice.. everything else is working except the injectors..

 

yea the **** is pissing me off. because i need a good daily driver so i can do some work on my audi

 

TTT

anyone think it may be the injector resistor box?