ok i need some help on my mini me swap. i have a d15b8 block on my civic cx. i wanted to do a mini me swap so i bought a d16z6 head and intake manifold and dissy. i took the old head and intake manifold and dizzy off and put the new ones on. i also got a p28 ecu.after putting all the things on the car is running like crap. acually it really isnt running at all. my timing on my head and block are correct and my timing on my dissy is correct. these are the problems:

its getting really hott- water pump worked before but now seems like its not circulating......i removed the thermostat and i still dont see the bubling in the radiator that you should if you pump is working.also the hose going into the front of the head is hot and the hose coming out of the thermostat is cold. wondering if the head gasket i put on is the problem?


#2- its running really crappy. really low idle barelly keeps running.

also theres a vacume hose on the back that connects to your purge control solenoid valve and if you connect that hose the car shuts off...unless you give it a enourmouse amount of gas.


just wondering if these things are an easy fix.

ANY HELP PLEASE!!!!!!!!!!!!

 

First off, make sure the HG matches all of the passages on the head and block. If not, get one that does. That could be blocking coolant flow. Secondly, if it's runnig like **** before the engine warms up, double check that your timing is correct, cam and ignition. It's simple really, what makes an engine run properly? Correct A/F mix and spark. If either of those are off, you get a shitty running car. Start eliminating variables. Like, check cam timing. If thats dead on, check ignition timing, and so on. Good luck.

 

ok thanx

i heard somewere that if you put a d16z6 head on d15b8 block that your timing will always be a half tooth off and you will have to use either a d15b8 or an adjustable cam gear.....is this correct?

 

ok i replaced the head gasket with the d15b8... removed the thermostat.. and it doesnt seem to be getting hot.. i took it to a mechanic to have a diagnostic test on it and it said the IAC valve was bad and that i needed to hard wire my map sensor in..........

i switched computers to the p28 so i ran the wires to d17 d19 and d21 but the were already wires in those slots............ im really confused i dont know what the wires that are already there go to, so i spliced them and ran the map sensor in with the already existing wires............ still running shitty...

i also went to the junkyard and got a IAC valve.....seems to be idleing better but when i drive it, it loses almost all power and has no response at 2000 rpm.......you have to feather the gas to keep it moving............any Help?????????

 

besides this whole thing being a huge clusterf***, this simply sounds like your distributor needs turn a bit (ignition timing is ferked up). check your cam timing, make sure tdc is on cylinder one when it should be, then get the car idling and while the three distributor bolts are loosened..move it SLIGHTLY left and right to see if idle improves.

 

https://honda-tech.com/forums/honda-civic-del-sol-1992-2000-1/faq-d15-sohc-vtec-mini-me-massive-write-up-56k-goodbye-554053/

 

nope , rig it like me, i cut the distibutor, not the proper way you should get a ajustable timing gear but hey, it was one less thing i had to buy