LIQUID

im new so i hope im postin this in right forum. I drove my pickup down the street for the first time in about a month. parked it then came back to it bout two weeks later and tried to start it. Just keeps cranking over now. I checked for spark and thats ok. replaced the fuel pump and that didnt fix it. replaced the five prong relay and that didnt work maybe cuz it was used. fuses seem to be ok. i tried to jump the two relays with the blue/w red dot and the white/black with siver dots...thought they were the right wires but maybe not. they have continuity but no power from either one if they even suppose to. im still tracing the problem down and was wondering if anyone could give me some help here. thanks to all

regularguy412

Cold start injector? Getting any CEL codes on the dashboard light?

Mike in AR

LIQUID

checked continuity of the cold start injector. thats good. how do u get the cel codes?

regularguy412

Use a short piece of wire or a paper clip and jumper the T1 and E1 pins in the Diagnostic port ( passenger side inner fender in the engine bay). Turn the key to ON , don't have to start it. Read the flashes. Check here for more info:

http://www.off-road.com/toyota/tech/codes/index.html

Mike in AR

SlightlyModified

did you check for power at the fuel pump? maybe try releaving the preasure in the fuel system to see if you are getting fuel or not. Will it fire with eather? if so, maybe you simply have a clogged fuel filter. If you do have preasure in the fuel lines, and everything else checks out ok, put a gauge on there to see if you have Eough fuel preasure. I'm assuming it is fuel injected

Flash319

Pickup in distributor. Can you hear the injectors clicking when cranking? You can pull the distributor, turn the key to on and turn the distributor by hand. You should here the injectors.

LIQUID

the pickup is good, it is a 22re, the pump is not getting power, its getting spark, it is not getting fuel, i had the fuel line off at the fuel rail. the only way the pump would work was to hook it up to a 12 volt car battery. i dont know what would cause this if the fuel pump relay is good. i will check the cel codes and get back to u guys

TNRabbit

I you have power at the relay and no power at the pump, it stands to reason their is a continuity interruption in the wiring between the relay & pump...

LIQUID

there is no power at the relay. unless im not checking it right...

LIQUID

my truck is bout to go to the junk yard. I cant seem to figure it out well i wish this was a body lift issue i bet i would of figured it out

Rory

have you thought about checking the ignition switch?

just a thought.

these can screw up and keep things from coming on.

LIQUID

does the pickup hav anything to do with with the fuel pump?

Rory

no, just crank position for the purpose of spark and injector pulse timing. do you have power at the relay socket?

84sr5yoty

2 ways to check fuel pump operation.

1st method

With the key on, engine off (all of your dash lights should be illuminated), short the fuel pump test connector and listen near the tank for fuel pump noise.

2nd method

With the key on engine off (same as above), physically push the AFM door open. You should be able to the fuel pump operate from there if it's quiet enough.

Another somewhat common problem with age and mileage is a faulty circuit-opening relay. This operates the fuel pump, and I believe a few other things. Take it out and ohm it. If it ohms out correctly, heat it with a hair dryer for a minute or two and retest it. Sometimes they're affected by temperature.

Also, it's common for that short piece wiring connector from the fuel pump to the main harness to go bad. It's so common, that good knowledgeable Toyota mechanics automatically replace it when installing a new fuel pump.