i have a 91 hatch that wont start when its cold. what i have to do is turn the key on then off several time to choke the car basically. the motor was swapped out beginning of the year with a newer motor out of a 93 civic. when done a new temp sensor and thermostat were put in. i am getting a temp code from the computer. i though maybe wires were crossed repined the connector no fix. any idea as to what else it could be?

 

main fuel relay, you can take it apart and fix it with a solidering gun, or you can buy a fixed one from one of our members, or buy a new one

 

IAT or ECT code? Did you replace the right sensor? The ECT is the one below the distributor with two wires. If you still get sensor codes check the wiring (unplug ECU and measure sensor resistance at the ECU plug, should be the same as at the sensor). I think the plug for the IAT is close enough to something else (IACV?) to plug it in wrong.

 

i'm having the same issue but got no response.. lol.

uhm my main relay is new... FTS!

 

clean your iacv
http://www.honda-tech.com/showthread.php?t=1901557

inspect spark plugs, inside distributor cap, replace fuel filter, could have a leaking injector