dx to mpfi swap !!! help !!!
 

alright i screwed up like usuall heres my dilema i did the dx to mpfi swap onto my crx i have a d16y5 vtec e motor in my crx at first i had a lag issue problem anything over 3/4 throttle and the car would fall onto its nose it wouldnt stall but would just slow down i went to axiom they said to upgrade the intake and fuel pump (i put an si fuel pump in) so i did

i did the swap onto the car following everything step by step that i got off line to do the swap word for word and tagged all my wires in color code so i knew what was what i took the b2 wires and b10 wire and depinned them didnt cut them but depinned them and moved them to b10 and b12 like i was suppose to i cut c1 & c2 and spliced them into b11 & b12 i connected c1 and spliced it into to b10 and c2 and spliced it to b12 making sure to leave everything connected

i attached wires to c1 & c2 and made sure to mark them and run them into the engine compartment like i was suppose to i aslo cut wires to a3 & a7 and ran them into the engine compartment as well i did not however hook up the wires that i cut off @ a3 & a7 i left those two wires floating and taped off under the dash

i extended all of my wires at the tps and eacv i followed the instructions on how to hook up all injectors and i am running standard si injectors and i depinned one wire at a time on my dizzy plug on the dx dizzy and transferred them to the si dizzy plug one by one so the only wires i cut were the ones under my dash and a couple under the hood and followed the instructions on how i was suppose to do it

since i have done this swap i have had problems the car starts up and runs fine my si dizzy is also notched for the vtec head but when i revv up on the car it tachs at like 3500 and starts to back fire and the car is puffing black smoke so obviously a sign of me running too rich i have doubled checked all of my vaccum lines and they are all hooked up

i am just wondering if i screwed up somewhere with the wiring or what any one have any suggestions or ideas be greatly appreciated axiom said they would charge me 65 to diagnose it but this is my backup car and my daily driver since my wife is always driving the truck so i need help and i need it asap some one please help me out thanks chris

Re: dx to mpfi swap !!! help !!!
 

TO START AXIOM OR WHAT EVER ARE very stupid. I run 17psi on dx fule system. second of all switch the tps wires

Re: dx to mpfi swap !!! help !!!
 

i already did switch them back to the regular way it didnt help i also swapped the two wires around on the dizzy plug all it did was make it so it wouldnt start i have tried just about everything the only thing left to do is

A: swap stock fuel pump back in
B: double check all my wiring again
C: switch back to the dx intake again ( which i really dont want to do unless i have to )

help with some more suggestions

and what do you mean you run 17 psi with stock dx fuel pump whats the difference between a dx and si fuel pump anything or what but its obvious that i am dumping too much fuel into my engine at the moment since it is puffing black smoke any help is greatly appreciated thanks

Re: dx to mpfi swap !!! help !!!
 

1 black smoke is burning oil, blue is gas
2 fuel pump is fine
3 get car running the way it was falling on its face
4 check your ecu for codes.

Re: dx to mpfi swap !!! help !!!
 

I think you meant to say the other way around ;)

Re: dx to mpfi swap !!! help !!!
 

nope
My shop does emmisions repairs and diagnostics all the time. you have a car with a leaky injector and then fire it up after a day and watch what happens...........blue smoke baby

Re: dx to mpfi swap !!! help !!!
 

see thats the thing i was running the dx setup when i did it and still had the dx fuel pump in which i had a feeling it was going out so i replaced with the si fuel pump that i got out of the yard and before i did the swap it was puffing white smoke which i was told cause it was lean now its puffing black which is what i am told is rich so that whole thing is new to me and i have no way to find out how much fuel that i am putting to the fuel rail thinking that might be part of the problem though to not sure i have a code for 4, 14, 20 and thats it i cant find my book at the moment so trying to look the codes up

Re: dx to mpfi swap !!! help !!!
 

do u have msn?
I will transfer u the manuel

Re: dx to mpfi swap !!! help !!!
 

i have yahoo unfortunately my wife has msn just no msn messenger though you can hit me up at miamore1923@yahoo.com i appreciate all the help though

Re: dx to mpfi swap !!! help !!!
 

the only thing that i can think of is the two wires that i cut off at the ecu @ a3 * a7 those are the only two wires sitting under my dash that arent hooked up i mean the two that you cut off i attached wires to the a3 & a7 and ran them into the engine bay so other than i am so confused and frustrated

Re: dx to mpfi swap !!! help !!!
 

ok just found my book it say this for the codes

4 is tdc crank sensor which is one of the codes that i also had while running the dx setup

14 is electronic air control valve

20 is electric load detector

Re: dx to mpfi swap !!! help !!!
 

you een ------- with the ecu, clear it then recheck for codes

Re: dx to mpfi swap !!! help !!!
 

Fuel doesn't burn blue smoke. It's oil. If you say the car's been sitting a while before firing it up and you get blue smoke, your got some valve/seal problems

Re: dx to mpfi swap !!! help !!!
 

I know its normaly black but if u have a good engine and its blue a lot of times u can look into the injectors. but tech
http://img176.imageshack.us/img176/4650/dscf0011xm9.jpg

Re: dx to mpfi swap !!! help !!!
 

That just proves my point?

Re: dx to mpfi swap !!! help !!!
 

but everyone is telling me cause i was puffing light colored smoke is cause i was running lean and now that its puffing dark smoke its cause im running to rich tried to adjust the dizzy that didnt help that and i went attached the two lose wires that were floating under my dash and that didnt help either i also tried to switch the two wires on the tps sensor and that made it worse i also tried swapping the two wihite wires on the dizzy plug itself and then the car wouldnt fire car kept making a weird noise and sounded like the block was filling with fluid switched it back and the car fired up

does anyone know what the correct way to reset the ecu i have not tried that and someone said that the cel 4 is cause i am running in limp mode so i am willing to try anything let me know thanks guys i really appreciate all the help

Re: dx to mpfi swap !!! help !!!
 

also the engine is a strong runner it only has 60,000 on it and the black smoke only showed up when i swapped the intake which only took me a day to do everything so if that helps out any

Re: dx to mpfi swap !!! help !!!
 

pull the hazard fuse for a bit with the key of

Re: dx to mpfi swap !!! help !!!
 

alright so on my crx pull the hazard fuse with the key off just want to double check cause my buddy told me to pull the ecu fuse and then turn the key on for a couple of minutes and then when i put the fuse back in and turn the key back on the ecu codes pop back up

Re: dx to mpfi swap !!! help !!!
 

alright reset the ecu and the codes popped back up i change out the ecu to an automatic si ecu and the codes popped up there as well drove the car and wont revv up past three it seems that around 2000 to 3000 it seems to start dumping gas thats what it seems like

i have already tried adjusting the dizzy i have changed out the ecu and i have also double checked my wiring what else is left anyone with some suggestions

Re: dx to mpfi swap !!! help !!!
 

alright like everyone else has said double check the wiring i went back out did that started back at my ecu and found that i hooked 2 of the wires that i was suppose to cut off and leave hanging i spliced it into wiring as soon as i un did them it fired up and now it runs awesome thanks to those that have helped me out appreciate it very much

so if any one else needs help now that i have done my mpfi swap on my dx give me a holla and ill help you out the best that i can thanks to everyone