93toyota2wd

I have a 1993 2wd manual pickup fuel injected 22re.
When I bought it I was told it wouldn't run because of a bad fuel pump

I replaced the fuel pump, injectors, fuel pressure regulator, fuel filter, and completely cleaned the tank. I'm getting good pressure all the way to the cold start injector so I know fuel is not a problem.
(By the way fuel pump was not getting power through stock harness so I ran a toggle switch to manually turn it on and off)

Truck still wouldn't stay running after starting fluid got used up.

I replaced the whole computer unit on top of the airbox, and the actual computer inside down by the passenger footwell. So all of the computer parts are fine.

The truck is in time, I made sure of that and also changed all of the spark plugs and get fire to all of them when individually holding them against the block.

Each cylinder gives good pressure readings about 150 for all of them so nothing is wrong internally.

All of the fuses are fine and after all of this the truck still will not run, any help is greatly appreciated

wyoming9

iTrader: (1)

Brand new injectors?

Did you get the plugs back on correct not corroded??

It seems like the injectors are not getting the pulse to open have you checked them.

If the injectors are the wrong impedance they won`t work.

The AFM and ECU were both new

So between The ECU and the injectors no communication poor connection one or the other is bad

Kiroshu

So the trucks engine only operates while spraying fuel(starting fluid) into the intake...?

If fuel pressure to the rail(s) is ok then its injector (pulse)signal malfunction.

Distributor pick-up signal coil fault...?

Fuses...?

Poor connection between igniter and injectors..?(Wiring harness)

Poor injector circuit ground...?

Coolant temperature sensor...?

Possible igniter assembly malfunction...?

93toyota2wd

Yes I went completely through the entire fuel system again yesterday bench tested the injectors and everything is good, however I'm not getting any voltage through the efi relay when I took meter readings, also tried jumping in the diagnostics box and still no luck so I'm pretty sure its going to be the wiring harness somewhere

wyoming9

iTrader: (1)

If the pulse signal is not getting to the injectors it is not going to run

Do you have the noid lights to test??

93toyota2wd

so after troubleshooting all weekend I found no voltage is getting through the wiring harness and im about 100% the new harness I ordered will get it on the road! thanks to everyone for the advice

93toyota2wd

Problem fixed it was the main relay thx everyone

93toyota2wd

Fixed it was main relay under dash thx to all