Dpfi to mpfi swap. I'm losing my mind!!!!!

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Old May 4, 2011 | 04:31 PM
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furbyiswhatsup's Avatar
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From: Ft. Thomas, KY
Default Dpfi to mpfi swap. I'm losing my mind!!!!!

Ok I have a 91 STD hatch. My main relay went bad so it sat for a week. I came across all the mpfi stuff and a si trans for a hell of a deal. So I took a weekend and did the wiring and bolting and cutting and bumping and scraping and now it won't start. I'm gonna push it off a cliff!!! I get a code 10 from my ecu. No biggie. I was getting a 8 and I'm no longer since I switched the 2 white wires. My plugs aren't getting spark. But I took the cap off and tested all the wires with my multimeter on the ohm setting and teyre all getting power. my injectors are getting power and my resistor box is as well. I just can't figure it out. I'd hate to sell it but I'm tired of chasing my tail...any help would be greatly appreciated!!! HT please help! ))
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Old May 4, 2011 | 04:40 PM
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4drEF's Avatar
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From: Granada Hills, Ca, USA
Default Re: Dpfi to mpfi swap. I'm losing my mind!!!!!

Test for fuel, spark, compression.
- so far you aren't getting spark.
Check all grounds - thermostat housing grounds from harness commonly overlooked as well as tranny to chassis.
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Old May 4, 2011 | 04:46 PM
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furbyiswhatsup's Avatar
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From: Ft. Thomas, KY
Default Re: Dpfi to mpfi swap. I'm losing my mind!!!!!

Where is the tranny ground? Is it the one from where the clutch cable goes? If so that's hooked up and the thermo and valvecover grounds are there. And I'm getting power to the injectors and my fuel is at least getting to the filter cuz I accidentally loosened the bolt on the top and it leaks everytime I turn the key haha
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Old May 4, 2011 | 04:47 PM
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furbyiswhatsup's Avatar
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From: Ft. Thomas, KY
Default Re: Dpfi to mpfi swap. I'm losing my mind!!!!!

Oh and the car ran fine before the Main relay crap happened.
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Old May 4, 2011 | 04:54 PM
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codybuRr's Avatar
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Default Re: Dpfi to mpfi swap. I'm losing my mind!!!!!

it sounds like a ground problem at the dizzy.
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Old May 4, 2011 | 04:57 PM
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furbyiswhatsup's Avatar
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From: Ft. Thomas, KY
Default Re: Dpfi to mpfi swap. I'm losing my mind!!!!!

How would I go about chasing that? Should I run a ground wire from one of the bolts to the chassis?
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