Question for you guys... Does anyone know if the distributor sends any kinda signal for the injectors to pulse. I am stumped on my MPFI swap. still gettin no power at all to the injectors. Thanks for ANY help!

 

check firing order.

 

firing order is correct. I am gettin decent spark and I am gettin gas all the way to the fuel rail. No power at all to the inectors (tested that with a noid light) Replaced the injectors, main relay and ECU. Thanks for the response though. Any help is appreciated!

 

do you have the resistor box hooked up properly?

 

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Yessir double checked that too. Is it possible that the resistor box can be at fault? I have never heard of one of them being bad.

 

bump

 

i dont know if its bad but i have 2 for sale and i live in GA also you can try it out.

 

Thanks man, but i tried a buddies working resistor box today and still the same problem. I am about to give up. LOL I have no clue why the injector plugs are getting no power.

 

What is the ECU telling you?

Number of flashes???

Proper grounds???

 

I am with this guy. I think you need to look at the ECU. Make sure you have the correct one. I believe the ECU tells the injectors when to fire.

 

I am using a PR4(obdO LS) ecu and am getting no codes at all. I had a PR3 sitting around so i popped that in there to see if that would do anything. still nothing. All grounds are hooked up (t-stat housing, valve cover, tranny ground...)

 

Sounds like incorrect distributor wiring to me. The ecu uses the TDC sensor in the distributor to determine when to fire the injectors, with it wired wrong, they won't fire at all. And since you said that you are getting "decent" spark and not good/great I'm definitely willing to bet you need to double check your distributor wiring.

 

I have checked my distributor wiring and all looks fine. I did purchase an obd2a-obd0 distributor jumper harness on here and I am starting to think that maybe that jumper harness is my problem. I think i am gonna locate me an obd0 dizzy and get rid of that jumper harness and obd2 dizzy.

 

even though its converted with the dizzy harness you can't use an obd0 ecu with an obd2 dizzy. you need the dizzy to match the ecu. so get an obd0 diz and you should be straight.

 

Really? so even though i have a jumper harness to jump that obd2 dizzy down to an obd0 dizzy it wont work with my obd0 ecu? If this is true you might have solved my problem! I guess i need to source an obd0 dizzy. Anyone else have any input on the above post before i purchase an obd0 dizzy?

 

The above is correct.
obd0 ecu needs obd0 distributor.
>=obd1 ecu needs >=obd1 distributor

the jumper harness is only to convert your engine wire harness. ecu and distri still need to be matched. Else it won't work.

 

I had same issue with my b16 trying to fire it up sounded like not getting gas when it was firing. also looked like it had a spark.

I had a buddy fire it while I held the spark plug. Could see the spark. I check the gas, had gas.

I said for giggles change out the ignitor module in the dizzy.

Turned ignition on boom ran like a charm.