Well as the title said I ran into a problem when installing my injectors. I got 450s (used) from a second gen mitsubishi. Im thinking that the injectors need some cleaning but IDK. When i started the car after i wired up the injector clips and my home made resistor box with 10w 10ohm resistors from radioshack. It ran like ****, misfiring and everytime I hit the gas it would stall then rpms would climb. I added bunches of fuel to the map but that didn't clear it up, no CEL (did at first but had to disable the knock sensor and no more CEL) Here is a video of what it was doing...
View My Video

here is what it looks like
wiring job is good the stock injectors are back in and the car runs perfectly. in crome the duty was 0-2% at idle.
I switched injector clips from my girls 92 teg along with her injectors which are now in mine.
here are some pics




finished but no worky!

 

Theres no way it's even gonna pretend to run right inless the ECU know's theres 450's in there.

 

Don't run a resistor box..

Just use the 10 watt 10 ohm resistors..

When i turbo'd my buddies SOHC d16z6.. I used 10 watt 10 ohm resistors bought from radio shack and i soldered them into the yellow/black wire... worked perfect

 

That's what I did.

 

OK i dont have a original resistor box i did us 10watt 10 ohm resistors but i made my own. I reinstalled the stock injectors and stock ecu (obdII) and its doing the same thing! (obdI ecu is chipped and was set to run 450's using crome when I had the 450's installed) Im rechecking the wires now but its still running like ****, OBDII codes were (cyl 2 misfire) and (cyl 4 misfire) and again I dont have the resistor box hooked up nor the 450cc injectors, its all stock except the wire harness from a 92 teg and im using my girls injectors also from her 92 teg

Also could an injector(s) seal cause this problem?


Modified by Jayman_Gsr at 9:51 AM 11/11/2008

 

well i just found a leak on injector #2 ill fix that and see if it makes my pains go away...

 

still doing it and throwing codes misfire

 

Well I looked all over the wires testing with my meter and checking for leaks and everything is ok, However the car still isn't running right...so CEL and misfire again so im going to try new plugs to see if that could be the problem (at least im hoping)

 

Well changed the plugs and still misfire on cyl 2 and 4 CEL Im going to take the injectors out of the 92 which were mine and see if that helps if not then IDK what to do...

 

why would u use 450s on a non turbo motor?

 

Your problem is your basemap. Judging by the video, the injectors are wired up correctly but the fueling is way off. I take it you don't have a wideband? Blindly adding fuel without a way to know you aren't doing damage isn't the smartest thing.

 

i am about to turbo the engine. i now have everything back to stock incl. stock injectors and clips along with the ecu and its still messing up, its got to be something else?

 

bump for help, also checked the timing and firing order and everything is in speck. firing order is 1 3 4 2 with plug wires going to the correct cyl #

 

well my ign coil went out so i put an accel in it and also the stock obdII comp fried somehow (even though it never ran the 450's so i don't know how) but it wasn't firing injector #4 thus causing the problem...Put my chipped obdI comp and ran perfect with no codes so ill keep that in it until I can locate a obdII comp so ill be able to get it inspected around next nov. cause luckly i got it inspected two days ago

 

Glad to hear you got it fixed

 

yeah thanks just hope i can find another obdII ecu