hey ive got a civic with a h22 swapped into it, im having a reallly weird problem with it and havent been able to figure it out yet.

only check engine light is egr which is fine.

car runs just fne when its cold/warming up, i can usually drive it around for 30-45 mins just fine. but wheni shut it off and start it back up shortly after that is when the problems start to kick in.

it has a dead miss to it for the next 5-10mins, its not rpm dependent, not throttle dependent. its just a random miss and this is the only time it happens.

so far i have done a compression test and all cylinders were 235 plus or minus 5.

replaced the distributor with a known good one, replaced the ect,iat, plugs, map and swapped ecu's

out of all that the only thing that had much of an effect was the ect, before replacing that when it would do this it wouldnt even barely idle. now that i replaced the ect it idles fine but just has this dead miss to it.

im at a loss here.

any help right now is greatly appreciated

 

maybe a bad ground? or maybe just a connector to one of your sensors is just not making a solid connection? or try your main relay. that will make your car run funny for a while with odd things happening at weird times.

 

Are you running it on a P13?

 

yea its on a p13 ecu, ive got a hondata s300 ecu laying around but to lazy to hook it up and spend time trying to get it to run just to c if it will tell me anything.

also i checked my resistance from the thermostat ground and i was seeing 7.4ohms is that a lil high?