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- #141
Through it's own relay using 14g wire.
Builds Pappy's 3RZ Adventure
- Thread starter pappy
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it sounds like it runs and dies. sound right for a couple seconds.
do you have noid light to check for pulse at the injectors?
typically if there is spark, there should be pulse.
i did a job on a 3.4 once that had a similar symptom. i think it would eventually code though. turned out to be a bad coil pack. weird but i assume the ecu was shutting down fuel because of the massive misfire potential.
do you have noid light to check for pulse at the injectors?
typically if there is spark, there should be pulse.
i did a job on a 3.4 once that had a similar symptom. i think it would eventually code though. turned out to be a bad coil pack. weird but i assume the ecu was shutting down fuel because of the massive misfire potential.
- Thread starter
- #144
That hiccup was the operator with the key.
is computer still controlling this relay or no?
why go away from the COR?
you do have a ST signal going to ecu as well?
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- #146
Pump is wired through the COR. Due to old wires I ran another relay and new wire to fire the pump.
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- #147
Ugh. We ohm'd the crankshaft sensor wires to the ECU. Good.
We unplugged the crankshaft sensor. Engine will not light. Plug it back in, and it does, then stalls.
Different injectors made no difference.
We unplugged the crankshaft sensor. Engine will not light. Plug it back in, and it does, then stalls.
Different injectors made no difference.
Is there a low oil pressure fuel cut? Maybe?
I'm swinging wild here. Is it possible to run a hot wire the pump to see if the engine continues to run? Or have you already done that?
I'm swinging wild here. Is it possible to run a hot wire the pump to see if the engine continues to run? Or have you already done that?
iz the ecu controlling the second ground for the cor?
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- #150
I had the same thought. I'm running an Autometer oil pressure gauge/sender in the stock location. Looking at the EWD it only goes to the dash, and not the ECU.
When we start the engine, it has pressure in the fuel rail. The engine starts, then stalls, and the pump continues to run. We tried three different regulators (used), and I find it hard to believe all three were bad. I'm going to place an order with your former shop and get a new OEM. It bypasses a ton of fuel.
What about a faulty fuel filter? I only ask since it starts fine but then seems to lose pressure. Have you taken fuel pressure readings? How much fuel is in the tank?
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- #152
The fella helping me doesn't have fittings to test Toyota fuel pressure. Tank is full. Filter is new (Wix). There is a ton of fuel passing through the regulator back to the tank. We tried three, used, regulators that didn't solve the problem. I find it hard to believe they were all bad, but I ordered a new one from Toyota.
Do you have a service manual for the donor vehicle?
Don't know if this is relevant. This was a MAF.
www.toyotanation.com
03 3RZ-FE starts, then dies immediately....
I have an urgent problem in trying circumstances. I took a long weekend on Cape Cod and planned to return to work today. I got in my truck after it had sat for three days and it stalled after briefly (one second) starting. It does this repeatedly. It cranks well and seems to fire, but only...
- Thread starter
- #155
I do, three volumn FSM, and the EWD.
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- #156
Dang, that is exactly the problem. Gotta keep reading.Don't know if this is relevant. This was a MAF.
03 3RZ-FE starts, then dies immediately....
I have an urgent problem in trying circumstances. I took a long weekend on Cape Cod and planned to return to work today. I got in my truck after it had sat for three days and it stalled after briefly (one second) starting. It does this repeatedly. It cranks well and seems to fire, but only...
- Thread starter
- #157
OK, his solution was the MAF. That was the first thing we tried.Don't know if this is relevant. This was a MAF.
03 3RZ-FE starts, then dies immediately....
I have an urgent problem in trying circumstances. I took a long weekend on Cape Cod and planned to return to work today. I got in my truck after it had sat for three days and it stalled after briefly (one second) starting. It does this repeatedly. It cranks well and seems to fire, but only...
Damn.
- Thread starter
- #160
I bought one at NAPA. I just ordered one from AmToy. The description in that fellas post is exactly what is happening to mine.
