ive done some research already here, but im not coming up with the answers im looking for. dont tell me that it does not fit a ef mine is resting peacefully inside my bay with a custom drivers mount and everything else is bolted up.

the issue im having is that i can not get the car to start with a obd0 crx/civic si dizzy nor a obd1 b7 dizzy. i know the obd1 dizzy and ecu i have was just running a 92 civic with a dohc zc from an 88-91 jdm civic till it threw a rod.

for the life of me i can not get this thing to run at all.

anyone have some tips. smart *** comments will be ignored.

looking for some real help here.

 

Need more info.
What ECU are you wanting to run?
You said you tried both OBD0 and OBD1 dizzy... I'm hoping you are aware that you need to match your OBDs and not mix them.

Secondly, are you getting fuel? compression? spark?

 

ok info wise, ive tried both obd0 and obd1 ignition systems with proper conversions of course. currently im obd0 with a hf dizzy and the pg7 ecu that belongs to this engine. im begining to honestly think that im going to have to purchase the proper dizzy for it to run.

the car is a 89 lx sedan, mpfi converted just recently. i have fuel and spark. it has run shitty, for at least 7 seconds. and it was missin pretty bad. so i know ive have got the dizzy wiring and fuel injectors wired right.

 

You said recently converted to MPFI. Was it running MPFI prior to the swap? Or did you complete that conversion along with the swap? Outside of checking for physical spark/fuel/compression, two things stand out with the MPFI conversion. Did you rewire the external sensor that is on end of the exhaust cam? I believe it's called the crank angle sensor or crank position sensor. The SOHC MPFI distributors have them incorporated into the distributor where the D twincam distributors have them seperate. The only other thing I can think of that might cause that is two wires needing to be flipped on the TPS. That part should be covered in the FAQ.

 

no i havent had the car running prior to mpfi swap. i just did it with the obd1 conversion. this is the 4th car in the past 4 years ive swapped to mpfi, so i know for sure the wiring is correct. i bet anything right now, if i get the right dizzy it will run. i thought i could get it to run with the sohc dizzy. guess i was wrong.

 

Yep that's your problem. probably start right up once you get the dohc dizzy. Curious though, did you use the sohc dizzy's internal cps or did you move the two wires over to the cps on the exhaust cam?

 

I had the same problem with one of my cars you need a p28

 

Why? He has a stock zc. He doesn't need to tune it or run a z6 ecu. The pg7 is just fine

 

explain this to me why i need a p28?

i have a chipped obd1 vtec ecu. i had a stock vtec map to start with. i recently had a pm7 map burned to the chip and the same results.

as for the dizzy, ive tried using both and ended up with the same results.

 

assuming you run the right distributor with matching ECU (doesn't need a P28 to get this running) then for it to run a few seconds and die seems like a fuel system problem. Hard to tell what's up with your car since it wasn't running before you did the conversion.

 

well im not running the right dizzy. i did not think that i had to when converting to obd1. the only obd1 dizzy available for a d16a1 is the dohc zc obd1 dizzy. so right now, looks as though im screwed until i can afford one.

 

check if fuel pump kicks on with the key every time i had that prob with my dpfi

 

fuel pump works like a charm. i had to fix the no start issue when i bought the car. that was a faulty main relay.

 

all i can think is the dizzy

 

me too! thats the final piece that i think is keeping me from having it running.

 

so did you leave the cyl sensor wires (C1,C2) connected to the dizzy or not? if you did then i would try disconnecting them and running them seperately to the cps on the exhaust cam. no idear if it would make a difference in how it runs or not but its something to try that doesn't cost anything lol.

 

That's what I'm still leaning on. OP, can you clarified how you addressed this? This is the only real difference between wiring up MPFI for SOHC and MPFI for a DOHC ZC (or D16A1).

 

well as it sits now, im probably just going to yank the engine and rebuild my b2 bottom end with an a6 head, and put that in. sohc seems to be a easier way for me to go. i dont see justice in spending 150 bucks for a d16a1 that much cant be done to.

as for the cyp sensor. ive tried both ways. so yeah. i dont really feel like messing with this engine any more. i guess you can say it was never meant to be. if it was it would be running after the first day i swapped it. not 2 weeks later.

 

sorry i thought you were runing a d16y8.

 

anyone know where i can get a conversion harness to convert from dpfi to mpfi

 

Probably a good idea to start a new thread for your particular problems rather than hijacking a thread and posting totally irrelevant content.

 

well i am also doing the d16a1 swap and just figured maybe you could help me

 

theres a million threads on dpfi to mpfi, check out the search function, and you can get a rywire harness