ok i did the DPFI 2 MPFI swap on my civic 88 dx .. i've gone over my wiring over & over ... & cant figure out why it wont start .. it's geting gas .. but not sure if its geting Spark .... it's turning but just not cranking ? i've TRIED the Si , Hf & DX ecu's .. the Si & Hf dizzy's ... & it's not throwin anycodes ... is there somthing im forgetting or doin wrong ?? has any1 else had this prob ? do u think it could a sensor on the intake i got ?

any help would be Appreceated !!


Modified by hedtrip at 10:57 AM 7/15/2005

 

need more info... what ecu, dizzy, etc are you using? what did you do with the wiring so far?

 

Sorry Typo ^^^^
i'm using the Si ,, but i've tried both
i did everything the DPFi 2 Mpi Wiring guidetold me 2 do
even used 2 diff ones

 

Did you use a bought wiring harness or you splice your own together?

 

i spliced my own

 

Could this be a starting point on figuring out where you went wrong? Obviously I can only suggest BC I dont know who you are, your experience, your car condition, or what steps were taken...but a homemade job on this project isnt advisable

 

Give me a call at Rywire. Checkout Rywire.com, phone # is on the page. I can probably diagnose this in 5 minutes over the phone but there are alot of questions i need acurate answers to first. Too many to ask here.


Search "check for spark" and you should find a how-to.
Or you can remove a spark plug, plugged in still, and see if it's firing.

 

yo, how much do u guys charge for a dpfi to mpfi conversion?

 

well it most deff isnt geting spark .... when i wired the Si Dizzy plugs on the Dx Harness i took my time & made sure that each wire went 2 the same color wire . & the 2 extra went 2 the ecu .... What else would cause it not 2 get spark ?

 

we charge $160, usually $150 for a repair job if i think at least 1/2 of it was done right LOL

 

wut if ur not repairing anything lol, cause i wont touch that **** cause im horrible with wires, still $160?

 

well i repened the 2 wires going 2 the ecu from the dizzy .i guess i didn't do it very well ,, & now its throwin codes 4(crank angle sensore) & 15 (ignition output signal) ...but it wont stop raing so i can change out the igniter

so are the HF & si dizzy the same or not ? i allways get diff ansews ...

 

i kno ur problem there are 2 white wires on ur 7 wire distribtor plug flip those 2 around and ull have spark i bet thats it i love it

 

did that help

 

god damn i have a migrain .... i got it 2 stuter a lil & back fire ... not sure if it was the the 2 white wires or something else i did ,,,, but now it's just throwin a cold 16 (injectores) whatsthe best way 2 test the injectores ?? & injectore plugs ???

 

you have 2 of the injector wires mixed up

 

when i did mine.. i found out that the ignitor coil from my dizzy wasnt working... you can use a timing light gun to see if you have and spark/ignition coming out from the dizzy...

 

There is a ground wire on the engine that's hidden a bit. I forgot to hook that up on a conversion and it did the same thing.

 

ok finnaly i got the Car Started !! but it's runing funny .. it's takes it a min for it 2 start ... & when it does it at very low rpms (around 4 or 500) & it slowly rises 2 about 2 then shoots up 2 4000 & stays there & reving the moter does nothing !!! when first start the car the fuel gauge is on E ,, & slowly Go up also ,, bad fuel pump ???any ideas ?

 

Any ideas ??

 

ok well try and tightening the intake mani onto the block better and make sure u check every bolt. another thing you can do is just take carb cleaner and spray a section of vacume line and see if the idle changes, if it does that means u have a leak there and either change the line or find a way to get rid of the leak. also u can use fuel injector cleaner that may help.

 

probably your TPS wiring... did you swap the pins?
If you drive it and try to floor it, does it basically kill the engine. If so, thats for sure your TPS wires being backwards. Swap the 2 outside wires on that 3 pin plug.

 

well.. i've tred changing around the wires on the tbs .... but nothing changed .. i need a new 1 ... is there away 2 get it off without replacing the trotlebody ?

 

yeah there is another way to take it off without replacing the throttlebody, and that is to drill out the rivets that are holding it in, and tap the holes and screw the new one in.