100 Series Petrol 01 Landcruiser fuel relay problem

Champagne
If you have no luck with replys suggest you post same message on "ICOOL" website or alternatively on the "4WD ACTION" site.
Lot of TOYOTA gurus on these sites may be able to come up with a solution for you .
Brgds
Gary

check fuse links at main battery. they are hidden behind a plastic cover that makes up or looks like it is part of the terminal. at the bottom there are plugs ,these corrode and may need cleaning. you may have to remove the battery to check them properly. corrosion is caused by acid etc

I would be more than pee'd off with the Toyota dealership that fixed this last time if they didn't explain what the problem was and how they fixed it in DETAIL and it has happened again so soon.

Toyota know how to fix this one even though there is a number of possibilities as to cause.

First up: this engine logs problems such as this and records a Diagnostic Trouble Code:- DTC for short.
What was the DTC code last time? The dealer should have recorded this in the workshop records!!!!!!!

If it was DTC 32---only guessing here but I bet I am Bl**dy close, then we know there was a malfunction with the Fuel Injection pump power supply.
No Engine warning light either in Normal mode nor in Test mode.
Bet you didn't have the engine warning light come on!!
Now possible causes---

Engine sensor malfunction:
There are 3 to look at
SPEED SENSOR -check the resistance at room temp - should read between 205 and 255 ohms.

SPILL CONTROL VALVE SENSOR - same deal - resistance should be between 1-2 ohms.

TIMING CONTROL VALVE SENSOR - again 10-14 ohms, and check the relay to ensure it clicks when voltage applied.

Spill Valve relay now needs to be checked again, that's the one they replaced last time (behind the glove box LHS relay block. $40 relay cost plus fitting say $70. NOT $1500 because they waste your time and money with their incompetence.

If all these are OK then we head for the INJECTION PUMP CORRECTION UNIT (which incidentally I would head to first anyhow)
3 possibilities here.
1: short in the circuit harness or connector
2: malfunction of the Correction unit
3: malfunction of the engine ECU.

Now let's say I am a Toyota service engineer I would say to myself, this vehicle has been operating normally then has a which one of my dealers "fixed" with a relay change.

That doesn't sound like the ECU is at fault, nor does it sound like the Injection pump correction unit is at fault, but it does sound like an intermittent fault in the circuit harness or one of the connectors because it was sudden, no active components faulted during inspection and we could not reproduce the fault -- so it has to be a cracked wire, loose wire or cracked connector.
BSET CHECK THE WIRING HARNESS AND THE CONNECTOR FOR CONTINUITY WHILE SOMEONE MOVES THEM >

AHA there is a TOYOTA procedure for doing just this---let's try that, instead of ripping off the customer with gross overcharging.


Sorry -- I get annoyed when they know how to fix a problem but insist taking people for a ride.

I've opened a bottle of Red now, so I'll mellow a bit tonight.

Hope it helps you with the problem

spray your car for ants every couple of weeks. they get in the relays