no spark no fuel on 7M-GE 4runner swap

[dopeassjackson]

so i spend all day messing with the wireing and it will crank but wont start.
no fuel and no spark.
theres power to the injectors and power to the coil. i know the ground on the injectors is switched and when i test those wires on the ecu i get OL on my meter between the injector ground wire and the ecu case

 

[shaeff]

Check out www.supracharged.com - there's a lot of information on this swap over there.

 

[dopeassjackson]

Check out www.supracharged.com - there's a lot of information on this swap over there.

checked there before i started the swap and wired it up like that to a T. dont know if it matters that im useing an AT ecu?

 

[dopeassjackson]

so i think i have a bad computer. any reason why i cant use a auto trans wire harness with a MT ecu?

 

[shaeff]

Do you have a manual transmission? If so, you'll need to jump the neutral start switch. Using an auto harness w/ a manual ECU should work just fine.

By the way, where in NY are you?

 

[dopeassjackson]

i have a MT 4runner and are useing an AT ecu and wire harness. where are the wires on the ecu that i have to jump? i looked at all the wires labled with AT on the wire diagram and thought i wired it correctly. i have
y-blk constant power
two blk-org switched 12v

the rest are just gauges and the fuel pump, the pump turns on.
im going out to check the neutral safety switch thing again.

im near Kingston or poughkeepsie NY.

 

[dopeassjackson]

the neutral safety switch is by the starter or has a plug by there? i jumped both of those 10g wires together because im useing the runners start relay. i would think it wouldnt crank if i didnt get around the neutral start switch?

 

[wiseco7mgt]

Its really easy to wire a 4 runner, the 7m will start with just a few wires for testing if the ecu is all good. Check with the ignition on if you have power to all the +B wires on the ecu (4 grouped together one end of the ecu). I think black and orange x2, black and red and black and yellow. Pretty sure i fired mine up with just those wires and the fuel pump rigged to a switch.

 

[dopeassjackson]

Its really easy to wire a 4 runner, the 7m will start with just a few wires for testing if the ecu is all good. Check with the ignition on if you have power to all the +B wires on the ecu (4 grouped together one end of the ecu). I think black and orange x2, black and red and black and yellow. Pretty sure i fired mine up with just those wires and the fuel pump rigged to a switch.

i got power to all the correct places, from truck through injector resistor to injector, through injector and back to the 3 injector grounds on computer. if i ground any of those 3 injector grounds with the computer un plugged i can hear them open.
i also have power to my coil and even swaped it and my ignitor out with a good used one. still no spark.
i got a ebay computer on the way and are moving on to mounting the radiator and the such.

how do i test the CPS?

 

[dopeassjackson]

i got power to all the correct places, from truck through injector resistor to injector, through injector and back to the 3 injector grounds on computer. if i ground any of those 3 injector grounds with the computer un plugged i can hear them open.
i also have power to my coil and even swaped it and my ignitor out with a good used one. still no spark.
i got a ebay computer on the way and are moving on to mounting the radiator and the such.

how do i test the CPS?

 

[dopeassjackson]

Its really easy to wire a 4 runner, the 7m will start with just a few wires for testing if the ecu is all good. Check with the ignition on if you have power to all the +B wires on the ecu (4 grouped together one end of the ecu). I think black and orange x2, black and red and black and yellow. Pretty sure i fired mine up with just those wires and the fuel pump rigged to a switch.

i got power to all the correct places, from truck through injector resistor to injector, through injector and back to the 3 injector grounds on computer. if i ground any of those 3 injector grounds with the computer un plugged i can hear them open.
i also have power to my coil and even swaped it and my ignitor out with a good used one. still no spark.
i got a ebay computer on the way and are moving on to mounting the radiator and the such.

how do i test the CPS?
edit: never mind i checked the CPS yesterday.

 

[wiseco7mgt]

Did you jumper the tranny plug? Its a round 3 pin plug from memory and you jumper the pins 2 and 3. If that's not done it would stop it from starting.
Let me know if you need a pic of the plug.

 

[shaeff]

No shit? You're right near me! I'm in Tivoli, right across the river from Kingston (where I work) and not even 30min north of Poughkeepsie.

 

[dopeassjackson]

Did you jumper the tranny plug? Its a round 3 pin plug from memory and you jumper the pins 2 and 3. If that's not done it would stop it from starting.
Let me know if you need a pic of the plug.

cant find any 3 wire round plug. the only one i have is a 5 wire white round plug by the starter. 4 wire square plug by starter. 6 wire rectangle plug by starter and the two by the AC compressor. please post pic of plug or where to look for it.

No shit? You're right near me! I'm in Tivoli, right across the river from Kingston (where I work) and not even 30min north of Poughkeepsie.

i work in poughkeepsie right behind duchess college. dont see to many older toyotas around her much less supras.

 

[wiseco7mgt]

The plug should be white or clear. What year model is your harness? plug will be in the same group as the rest of the tranny plugs.

 

[dopeassjackson]

The plug should be white or clear. What year model is your harness? plug will be in the same group as the rest of the tranny plugs.

i checked alldata for what the trans plugs look like. all the plugs that are by the starter are white or clear. its an 1988 auto supra harness.
i did connect the blk-blue and blk-white wire by the starter, thats not the neutral safety switch is it?

 

[wiseco7mgt]

Do you still have the auto that came from behind it? if so take a look at the plugs that come off it and you'll find the colour / shape it needs to be.

 

[dopeassjackson]

Do you still have the auto that came from behind it? if so take a look at the plugs that come off it and you'll find the colour / shape it needs to be.

lol thanks for the info but if i had the auto that was behind it i would have figured it out already. im kind of doubting that its the neutral switch because the engine shouldnt turn over if its not in neutral.

 

[wiseco7mgt]

With my 4 runner the cranking came from the original loom and was separate to the 7m loom so depending on how you wired it it may or may not crank over anyway.
I just went and took a pic for you of the cluster of wires that goes to the tranny and the related area.

 

[wiseco7mgt]