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  1. O

    Engine shutter and rough idle

    From what I have read. You are experiencing this while at Operating temperature, Or as you refer too as Running temperature. While you also have a O2 Sensor code. When O2 Sensors are in Open loop (While the truck is warming up) The ECU has a base fuel/air map ratio (From what I remember) Now...
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    TCM, ECM Issue.

    I have finally been struck with the famous 83 84 85 codes. I have a 1993 FZJ80G 1fz-fe (Japan) Production date 04/93 Now the ECM is different to the American models (89661-60170), My Japan (89661-60160). Now before I went out and dropped a bomb on a ECM. Me and my mate both have 93 cruisers...
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    EFI 15 amp fuse blowing

    Yes you are correct. A worn out pump can draw more current to keep up with the demand. Also a blocked fuel filter(In the tank) and also the filter which is in the engine bay somewhere. Could be another reason to draw more current to keep up. But it seems to be a more present issue when at...
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    EFI 15 amp fuse blowing

    Fuel pump should be drawing more when trying to warm up ? Thats how I thought it worked. You use more fuel warming the engine up to operating temperature. So therefor fuel pump is delivering more fuel drawing more current. Obviously that only really applies to idle. Once your driving you would...
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    EFI 15 amp fuse blowing

    I have a 1993 80 myself and I believe the 94s are around similar. But the 95s did have a few updated things which I believe included OB2, So take my suggestions with a grain off salt because I may be incorrect. And without me actually digging in and looking at the FSM I may be guessing bad...
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    93 LC starts, runs then dies if gas pedal is not pressed

    Almost looks identical to the one I had brought also. Does it idle okay with that VAF? My rig it would idle fine but as soon as it was put under any load it could choke. I also believe the internals may be abit different to the original too. Aleast mine was. I have a few photos that show it...
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    93 LC starts, runs then dies if gas pedal is not pressed

    Not fun when messing around with the VAF everyone says not to touch😂. Anyway, I also made the mistake of doing so. The VAF you had purchased off of Ebay is most likely your issue. I had also purchased one off there. And it has always had all kinds of issues. But seemed to idle okay but couldnt...
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    Engine hesitation when cold below 2000rpm

    Hmm I see, I missed that post. The only other thing I could think of at the moment would be fuel pressure regulator but I would think it would be a constant issue and not just when engine is warming up. But going back to what TrollHole had said about the temp sensor in the AFM. This could still...
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    Engine hesitation when cold below 2000rpm

    I would also have to agree with your exhaust guy and Mechanic. O2 Sensors run in open loop when the engine is getting to operating temperature which means the ECU doesnt use that data until it reaches closed loop. So In that case your exhaust leak would be worse when the engine is warm. Just my...
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    Check engine light not working

    I am no expert and someone may have to correct me on this. But I believe the OBD1 rigs have to be cycled with 2 separate drives before you will see codes. The first time the codes are thrown the ECU stores it into what im guessing is the "RAM". And once the codes are thrown a second time is when...
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    Engine hesitation when cold below 2000rpm

    Unfortunately I am no expect to any of your problems (Or Mine :/) Mainly here for updates. But I do have a 1993 FZJ80 JDM, Which seems to be having roughly the same symptoms as yours. My rig used to be fitted with LPG also. But has since had all of the wiring disconnected. (Still haven't had...
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    Fuel pump issues in 1993 80 series

    Sounds like a different issue to me. Mine would just crank and not start at all. I would suggest looking at fuses and also relays. May be a faulty open circuit relay. Try jumping FP and +B in the diagnosis box. And start the car. This bypassed the open circuit relay (I believe). I am no pro...
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    Fuel pump issues in 1993 80 series

    Problem solved! Thank you to all the helpful people. It was indeed a wiring issue. There was a LPG kit installed on the car before I had bought it. The previous owner told me that he took out the kit. He obviously just took out all of the main components and not the wiring. The same wire must...
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    Fuel pump issues in 1993 80 series

    Alright I have some information, Which is interesting. On the COR Pin 2 which is the yellow/red wire has no voltage when the key is on the ON switch. Multimeter connected to Pin 2 and then to a ground connection which is right next to the relay box under the dash. So im not getting any power...
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    Fuel pump issues in 1993 80 series

    Alright ill do another double checking today after work, but thank you for your replys. I did what john had said in his first reply. But i didnt quite know what pins to test in the opening circuit relay. (Check to make sure you have 12v at pin 2 (Yellow/Red) of the circuit opening relay. If so...
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    Fuel pump issues in 1993 80 series

    Well first of all im quite new here but ive seen some good advice on different people asking questions about there fuel pump issues. I own a 1993 Landcruiser (FZJ80) Petrol. I have a crank but no start issue. I have been trying to diagnose the issue myself with no hope. The information I have...
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