yeah we just got done with installing a greddy turbo kit on a civic si 2000 first everything went fine no cel or anythingnotedidnt change to colder plugs yet) but then a few days later we got a code throw 71 72 74 which says ignitions misfire so then we went ahead and changed to colder plugs and reset the ecu and it still threw the code of misfire how can we fixed this problem let us know thank you

 

you cleared the ECU i take it?

 

help me

 

The car is running fine even with the CEL, right? Because DOHC blue boxes are notorious for the misfire codes. Most people live with the light always on, but then there are some people who can't stand it and remove the bulb, which is potentially dangerous because another code may arise. But yeah, it's a common problem with GReddy DOHC kits. Not exactly sure why, but the majority of B-series people with these kits get the misfire code except the engine still drives perfectly fine.

 

Is it because its Greddy?

 

do you have msd ignition controller, and blast coils for your distributor cap?

 

did you solder all the wiring to the ECU for the FCU? Mine were soldered, I never threw misfire codes. But I did get a code 3 for barometric whatever sensor, a common problem with the FCU.

Also, if it helps, I didn't have any MSD ignition stuff. Just stock ignition with NGK BKR7's

 

You're running too rich. Been there. What color are the plugs?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by HondaCutter &raquo;</TD></TR><TR><TD CLASS="quote">did you solder all the wiring to the ECU for the FCU? Mine were soldered, I never threw misfire codes. But I did get a code 3 for barometric whatever sensor, a common problem with the FCU.

</TD></TR></TABLE>

What he said...I had no problems either except for some code, I believe it was 13. It didn't come on often, but it still bothered me.

Good luck and check your connections.

 

You need hondata....

 

If you are running iridium plugs remove them!!!! greddy emanage systems do not like them. had the same problem with my friends car (code 71, 72,73,74). I fixed it by putting stock NGK plugs in it. Problem solved!

Again do not run iridium plugs with greddy kits!!